Marine Weather and Tide Forecast for Mamaroneck, NY
April 23, 2025 1:12 PM EDT (17:12 UTC) Change Location
![]() | Sunrise 6:01 AM Sunset 7:44 PM Moonrise 3:53 AM Moonset 2:51 PM |
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 1226 Pm Edt Wed Apr 23 2025
This afternoon - SW winds 5 to 10 kt. Seas 1 ft or less.
Tonight - SW winds around 5 kt, becoming ne around 5 kt after midnight. Seas 1 ft or less.
Thu - E winds around 5 kt, becoming se in the afternoon. Seas 1 ft or less.
Thu night - SW winds 5 to 10 kt. Seas 1 ft or less. Wave detail: S 1 ft at 2 seconds.
Fri - SW winds 5 to 10 kt. Seas 1 ft or less. Wave detail: S 1 ft at 2 seconds.
Fri night - S winds 10 to 15 kt. Seas 1 ft or less. Wave detail: S 1 ft at 2 seconds. Chance of showers in the evening, then showers likely after midnight with vsby 1 to 3 nm.
Sat - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Showers.
Sat night - NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sun - N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Sun night - NW winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 1226 Pm Edt Wed Apr 23 2025
Synopsis for the long island and connecticut coastal waters - High pressure settles nearby today into tonight, and remains in control through Thursday night. A frontal system will move across the waters Friday night into Saturday, followed by high pressure Sunday into Monday.
7 Day Forecast for Marine Location Near Mamaroneck, NY

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Mamaroneck Click for Map Wed -- 01:36 AM EDT 1.07 feet Low Tide Wed -- 03:53 AM EDT Moonrise Wed -- 06:03 AM EDT Sunrise Wed -- 07:37 AM EDT 7.42 feet High Tide Wed -- 02:13 PM EDT 0.65 feet Low Tide Wed -- 02:51 PM EDT Moonset Wed -- 07:43 PM EDT Sunset Wed -- 08:16 PM EDT 7.77 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Mamaroneck, New York, Tide feet
12 am |
2 |
1 am |
1.2 |
2 am |
1.1 |
3 am |
1.4 |
4 am |
2.4 |
5 am |
4.2 |
6 am |
6.2 |
7 am |
7.3 |
8 am |
7.4 |
9 am |
6.9 |
10 am |
6.1 |
11 am |
4.4 |
12 pm |
2.4 |
1 pm |
1.1 |
2 pm |
0.7 |
3 pm |
0.8 |
4 pm |
1.5 |
5 pm |
3.1 |
6 pm |
5.3 |
7 pm |
7.1 |
8 pm |
7.7 |
9 pm |
7.6 |
10 pm |
7 |
11 pm |
5.6 |
Throg's Neck Click for Map Wed -- 02:42 AM EDT 0.90 knots Max Flood Wed -- 03:53 AM EDT Moonrise Wed -- 05:32 AM EDT -0.00 knots Slack Wed -- 06:04 AM EDT Sunrise Wed -- 08:54 AM EDT -0.62 knots Max Ebb Wed -- 11:39 AM EDT 0.00 knots Slack Wed -- 02:51 PM EDT Moonset Wed -- 03:06 PM EDT 0.86 knots Max Flood Wed -- 05:41 PM EDT -0.00 knots Slack Wed -- 07:43 PM EDT Sunset Wed -- 09:16 PM EDT -0.69 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |   |
Throg's Neck, Long Island Sound, New York Current, knots
12 am |
0.2 |
1 am |
0.4 |
2 am |
0.8 |
3 am |
0.9 |
4 am |
0.5 |
5 am |
0.1 |
6 am |
-0.1 |
7 am |
-0.3 |
8 am |
-0.5 |
9 am |
-0.6 |
10 am |
-0.5 |
11 am |
-0.2 |
12 pm |
0.1 |
1 pm |
0.2 |
2 pm |
0.6 |
3 pm |
0.9 |
4 pm |
0.7 |
5 pm |
0.2 |
6 pm |
-0.1 |
7 pm |
-0.3 |
8 pm |
-0.5 |
9 pm |
-0.7 |
10 pm |
-0.6 |
11 pm |
-0.3 |
Area Discussion for New York City/Upton, NY
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FXUS61 KOKX 231624 AFDOKX
Area Forecast Discussion National Weather Service New York NY 1224 PM EDT Wed Apr 23 2025
SYNOPSIS
High pressure settles nearby today into tonight, and remains in control through Thursday night. A frontal system will move across the area Friday night into Saturday, followed by high pressure Sunday into Monday. High pressure will then give way to a frontal system approaching from the mid section of the country on Tuesday.
NEAR TERM /THROUGH TONIGHT/
For this midday update, dewpoints were adjusted to account for current observations being slightly lower than forecast. Winds were also adjusted to account for the latest guidance timing on today's sea breeze. Otherwise, the forecast remains on track.
High pressure is expected to gradually draw closer today and settle over the region tonight. This should lead to large scale subsidence overall. The upper level jet is progged to remain over Northern New England and into the Saint Lawrence River Valley up to the north. With the area on the southern side of the polar jet temperatures should continue to run above normal temperatures wise. Overall the synoptic flow will be NW based, but will be weaker than yesterday. Thus, by late this afternoon the expectation is for localized sea breeze development for most coastal locations. There remains some uncertainty to the extent of sea breeze advancement to the N and NW for the late afternoon and early evening. Maximum temperatures should get well into the 70s in most places. There will be 60s across coastal, especially eastern coastal communities. Went with NBM 90th percentile as far as max temperature forecast which is a few degrees above the deterministic and above a MAV / MET blend in most places.
High pressure settles over the area tonight with mostly clear skies and light winds. Temperatures are expected to bottom out in the 40s in the outlying areas, with some lower and middle 50s across the metro.
SHORT TERM /THURSDAY THROUGH FRIDAY/
High pressure slowly gets further east on Thursday. A return flow of sorts attempts to get going. With the synoptic flow expected to be fairly light, look for a hybrid sea breeze to develop with a southerly flow off the cooler ocean, especially for the afternoon.
By late in the afternoon a wide spread in temperatures should be anticipated, with mainly 60s and a few middle and upper 50s across coastal and eastern coastal sections, with 70s across western and interior locations. Temperatures are expected to be considerably cooler across eastern coastal sections for the late day and early evening with a wind off the colder ocean.
Subtle height rises are indicated by global NWP through Thursday night as the upper jet remains north of the region. Temperatures at 850 mb will remain around 10 C. However, with high pressure at the sfc over the Western Atlantic the low level winds will be southerly and this will bring in noticeably cooler air off the ocean. Winds will be light and more out of the SW and thus temperatures should remain quite mild Thursday night. However, more of an easterly component to the southerly flow likely kicks in during Friday. This will drive down max temperatures from the previous couple of days, especially further east. Temperatures to the west remain in question where 70s to perhaps up to 80 are a possibility for western and some interior locations, otherwise mainly 60s closer to the coast and to the east. If the sfc winds go more SE then temperatures even inland would be cooler than currently indicated. At this point there appears to be enough mid and upper level ridging taking place into Friday to keep the region dry, although a warm front back to the southwest may start to draw closer late in the day. This should lead to an increase in mid level clouds through the day.
LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/
Some better agreement in the global models and their ensembles for the frontal system that impacts the area Friday night into Saturday.
Still though, the GFS is the faster of the operational members, but the gap is closing. Still staying close to the NBM as a consensus approach remains the best option. The focus still seems to hinge on the interaction of multiple pieces of northern branch energy dropping across central Canada toward the end of this week.
Expect the frontal system to bring showers into the area Friday night, with the most likely timeframe after midnight Friday through the first half of Saturday. Marginal instability could result in isolated thunderstorm, however, onshore flow and weak lapse rates should limit coverage. High pressure then builds in from the west Sunday into Monday. The next frontal system approaches from the mid section of the country on Tuesday.
Rainfall amounts at this time are likely to stay below an inch with NBM probabilities about 20 to 30 percent for an inch or more. The mean and median amounts are closer to half an inch.
Temperatures remain above normal into Saturday (5 to 10 degrees). A return closer to normal is expected Sunday, with a gradual warmup Monday into Tuesday ahead of the next system.
AVIATION /18Z WEDNESDAY THROUGH MONDAY/
High pressure builds in from the west today and across the area tonight.
VFR through the TAF period.
NNW-N winds around 10kt this morning with a few gusts of 15-18kt.
The flow will then gradually back around to the WNW, with seabreeze or hybrid seabreeze development late morning into the afternoon at the coastal terminals. There is still some uncertainty with the seabreeze timing due model differences in the depth and strength of the westerly flow during the afternoon hours. Wind will then become light and variable Wednesday night.
...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
A few gusts this morning of 15-18kt possible.
Seabreeze timing could vary by 1-3 hours as there is some uncertainty with the depth and strength of the westerly flow in the afternoon hours. At this time, seabreezes are forecast to make it into KJFK and KLGA. Confidence is increasing for a late day seabreeze at KEWR (22Z-23Z).
OUTLOOK FOR 12Z THURSDAY THROUGH SUNDAY
Thursday: VFR.
Friday: VFR during the day.
Friday Night-Saturday: MVFR or lower in showers. An isolated thunderstorm possible Saturday. SW gusts 15-20 kt, becoming W-NW in the afternoon/evening.
Sunday: VFR. N gusts 15-20 kt possible.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/ www.weather.gov/zny/n90
MARINE
With high pressure nearby sub advisory conditions will prevail through Friday with ocean seas not much above 2 ft throughout. By late Friday a southerly flow increases with gusts potentially approaching 20 kt for some of the southern coastal waters.
The next chance for SCA conditions will be on the ocean waters Friday night into Saturday night with a frontal system moving across the waters. Winds and seas subside heading into Sunday morning, remaining below SCA criteria into the beginning of next week.
HYDROLOGY
At this time there are no hydrologic concerns through early next week.
OKX WATCHES/WARNINGS/ADVISORIES
CT...None.
NY...None.
NJ...None.
MARINE...None.
Area Forecast Discussion National Weather Service New York NY 1224 PM EDT Wed Apr 23 2025
SYNOPSIS
High pressure settles nearby today into tonight, and remains in control through Thursday night. A frontal system will move across the area Friday night into Saturday, followed by high pressure Sunday into Monday. High pressure will then give way to a frontal system approaching from the mid section of the country on Tuesday.
NEAR TERM /THROUGH TONIGHT/
For this midday update, dewpoints were adjusted to account for current observations being slightly lower than forecast. Winds were also adjusted to account for the latest guidance timing on today's sea breeze. Otherwise, the forecast remains on track.
High pressure is expected to gradually draw closer today and settle over the region tonight. This should lead to large scale subsidence overall. The upper level jet is progged to remain over Northern New England and into the Saint Lawrence River Valley up to the north. With the area on the southern side of the polar jet temperatures should continue to run above normal temperatures wise. Overall the synoptic flow will be NW based, but will be weaker than yesterday. Thus, by late this afternoon the expectation is for localized sea breeze development for most coastal locations. There remains some uncertainty to the extent of sea breeze advancement to the N and NW for the late afternoon and early evening. Maximum temperatures should get well into the 70s in most places. There will be 60s across coastal, especially eastern coastal communities. Went with NBM 90th percentile as far as max temperature forecast which is a few degrees above the deterministic and above a MAV / MET blend in most places.
High pressure settles over the area tonight with mostly clear skies and light winds. Temperatures are expected to bottom out in the 40s in the outlying areas, with some lower and middle 50s across the metro.
SHORT TERM /THURSDAY THROUGH FRIDAY/
High pressure slowly gets further east on Thursday. A return flow of sorts attempts to get going. With the synoptic flow expected to be fairly light, look for a hybrid sea breeze to develop with a southerly flow off the cooler ocean, especially for the afternoon.
By late in the afternoon a wide spread in temperatures should be anticipated, with mainly 60s and a few middle and upper 50s across coastal and eastern coastal sections, with 70s across western and interior locations. Temperatures are expected to be considerably cooler across eastern coastal sections for the late day and early evening with a wind off the colder ocean.
Subtle height rises are indicated by global NWP through Thursday night as the upper jet remains north of the region. Temperatures at 850 mb will remain around 10 C. However, with high pressure at the sfc over the Western Atlantic the low level winds will be southerly and this will bring in noticeably cooler air off the ocean. Winds will be light and more out of the SW and thus temperatures should remain quite mild Thursday night. However, more of an easterly component to the southerly flow likely kicks in during Friday. This will drive down max temperatures from the previous couple of days, especially further east. Temperatures to the west remain in question where 70s to perhaps up to 80 are a possibility for western and some interior locations, otherwise mainly 60s closer to the coast and to the east. If the sfc winds go more SE then temperatures even inland would be cooler than currently indicated. At this point there appears to be enough mid and upper level ridging taking place into Friday to keep the region dry, although a warm front back to the southwest may start to draw closer late in the day. This should lead to an increase in mid level clouds through the day.
LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/
Some better agreement in the global models and their ensembles for the frontal system that impacts the area Friday night into Saturday.
Still though, the GFS is the faster of the operational members, but the gap is closing. Still staying close to the NBM as a consensus approach remains the best option. The focus still seems to hinge on the interaction of multiple pieces of northern branch energy dropping across central Canada toward the end of this week.
Expect the frontal system to bring showers into the area Friday night, with the most likely timeframe after midnight Friday through the first half of Saturday. Marginal instability could result in isolated thunderstorm, however, onshore flow and weak lapse rates should limit coverage. High pressure then builds in from the west Sunday into Monday. The next frontal system approaches from the mid section of the country on Tuesday.
Rainfall amounts at this time are likely to stay below an inch with NBM probabilities about 20 to 30 percent for an inch or more. The mean and median amounts are closer to half an inch.
Temperatures remain above normal into Saturday (5 to 10 degrees). A return closer to normal is expected Sunday, with a gradual warmup Monday into Tuesday ahead of the next system.
AVIATION /18Z WEDNESDAY THROUGH MONDAY/
High pressure builds in from the west today and across the area tonight.
VFR through the TAF period.
NNW-N winds around 10kt this morning with a few gusts of 15-18kt.
The flow will then gradually back around to the WNW, with seabreeze or hybrid seabreeze development late morning into the afternoon at the coastal terminals. There is still some uncertainty with the seabreeze timing due model differences in the depth and strength of the westerly flow during the afternoon hours. Wind will then become light and variable Wednesday night.
...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
A few gusts this morning of 15-18kt possible.
Seabreeze timing could vary by 1-3 hours as there is some uncertainty with the depth and strength of the westerly flow in the afternoon hours. At this time, seabreezes are forecast to make it into KJFK and KLGA. Confidence is increasing for a late day seabreeze at KEWR (22Z-23Z).
OUTLOOK FOR 12Z THURSDAY THROUGH SUNDAY
Thursday: VFR.
Friday: VFR during the day.
Friday Night-Saturday: MVFR or lower in showers. An isolated thunderstorm possible Saturday. SW gusts 15-20 kt, becoming W-NW in the afternoon/evening.
Sunday: VFR. N gusts 15-20 kt possible.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/ www.weather.gov/zny/n90
MARINE
With high pressure nearby sub advisory conditions will prevail through Friday with ocean seas not much above 2 ft throughout. By late Friday a southerly flow increases with gusts potentially approaching 20 kt for some of the southern coastal waters.
The next chance for SCA conditions will be on the ocean waters Friday night into Saturday night with a frontal system moving across the waters. Winds and seas subside heading into Sunday morning, remaining below SCA criteria into the beginning of next week.
HYDROLOGY
At this time there are no hydrologic concerns through early next week.
OKX WATCHES/WARNINGS/ADVISORIES
CT...None.
NY...None.
NJ...None.
MARINE...None.
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
KPTN6 - 8516945 - Kings Point, NY | 8 mi | 55 min | 0G | 64°F | 50°F | 30.23 | ||
BATN6 - 8518750 - The Battery, NY | 22 mi | 55 min | 58°F | 50°F | 30.17 | |||
ROBN4 - 8530973 - Robins Reef, NJ | 26 mi | 55 min | SE 4.1G | 63°F | 30.22 | |||
MHRN6 | 30 mi | 55 min | ENE 4.1G | |||||
BRHC3 - 8467150 - Bridgeport, CT | 34 mi | 55 min | N 4.1G | 66°F | 30.14 | |||
SDHN4 - 8531680 - Sandy Hook, NJ | 35 mi | 55 min | SSW 5.1G | 60°F | 53°F | 30.25 | ||
44065 - Entrance to New York Harbor | 39 mi | 43 min | S 5.8G | 53°F | 50°F | 30.25 | 47°F |
Wind History for Kings Point, NY
toggle option: (graph/table)
Airport Reports
Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
KHPN WESTCHESTER COUNTY,NY | 10 sm | 16 min | var 04 | 10 sm | Clear | 70°F | 34°F | 26% | 30.19 | |
KLGA LAGUARDIA,NY | 13 sm | 21 min | no data | 10 sm | Mostly Cloudy | 70°F | 32°F | 25% | 30.20 | |
KTEB TETERBORO,NJ | 18 sm | 21 min | SE 05 | 10 sm | Clear | 68°F | 34°F | 28% | 30.19 | |
KJFK JOHN F KENNEDY INTL,NY | 20 sm | 21 min | SSW 14 | 10 sm | Mostly Cloudy | 66°F | 39°F | 37% | 30.22 | |
KFRG REPUBLIC,NY | 22 sm | 19 min | no data | 10 sm | Clear | 68°F | 37°F | 32% | 30.20 | |
KJRB DOWNTOWN MANHATTAN/WALL ST,NY | 22 sm | 16 min | var 05 | 10 sm | Clear | 70°F | 36°F | 28% | 30.22 |
Link to 1 hour of 5 minute data for KHPN
Terminal Aerodrome Forecast (TAF) for KHPN
Wind History Graph: HPN
(wind in knots)GEOS Local Image of north east
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Upton, NY,

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