L-36.com
Top   Marine   7-Day   Tide   NWS   Buoy   Airport   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Onset, MA

November 9, 2025 2:19 AM EST (07:19 UTC)
Change Location 
Sunrise 6:24 AM   Sunset 4:30 PM
Moonrise 9:14 PM   Moonset 12:22 PM 
Print  Help   Reset   Save   Recall   News  Map
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
Edit   Hide   Help

NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
ANZ234 Buzzards Bay- 105 Am Est Sun Nov 9 2025

Rest of tonight - N winds around 5 kt. Seas around 2 ft. Wave detail: sw 2 ft at 7 seconds and nw 1 foot at 3 seconds.

Sun - E winds 5 to 10 kt, becoming se 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave detail: se 2 ft at 3 seconds and sw 2 ft at 7 seconds. Rain in the afternoon with vsby 1 to 3 nm.

Sun night - SE winds 15 to 20 kt with gusts up to 25 kt, becoming S 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave detail: S 2 ft at 3 seconds and S 2 ft at 7 seconds. A chance of rain. Vsby 1 to 3 nm in the evening.

Mon - SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: se 2 ft at 7 seconds and sw 1 foot at 3 seconds. Rain likely. Vsby 1 to 3 nm in the morning.

Mon night - W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: S 3 ft at 8 seconds and sw 2 ft at 4 seconds. A chance of rain in the evening.

Tue and Tue night - W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Wave detail: sw 6 ft at 8 seconds and W 4 ft at 5 seconds.

Wed and Wed night - SW winds 25 to 30 kt, becoming W 20 to 25 kt. Seas 4 to 6 ft.

Thu and Thu night - W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 105 Am Est Sun Nov 9 2025

Synopsis for massachusetts and rhode island coastal waters - A couple waves of low pres will approach from the southwest Sun into Mon. This will be followed by the passage of a strong cold front later Mon followed by the potential for nw gale force wind gusts on Tue. Another cold front will approach and cross the waters later Wed into Thu.

7 Day Forecast for Marine Location Near Onset, MA
   
Edit   Hide   Help   Map    ←NEW

NEW! Add second zone forecast

Tide / Current for Cape Cod Canal, Buzzards Bay Entrance, Massachusetts
  
Edit   Tide Week   Weekend Mode (on/off)   Hide   Help
Cape Cod Canal
Click for Map
Sat -- 05:16 AM EST     0.20 feet Low Tide
Sat -- 06:23 AM EST     Sunrise
Sat -- 10:25 AM EST     Moonset
Sat -- 10:44 AM EST     5.07 feet High Tide
Sat -- 04:28 PM EST     Sunset
Sat -- 06:26 PM EST     -0.61 feet Low Tide
Sat -- 07:00 PM EST     Moonrise
Sat -- 11:08 PM EST     3.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Cape Cod Canal, Buzzards Bay Entrance, Massachusetts does not exist in database. Press Edit above and select a valid nearby location.

Cape Cod Canal, Buzzards Bay Entrance, Massachusetts, Tide feet
12
am
2.8
1
am
1.7
2
am
0.8
3
am
0.3
4
am
0.3
5
am
0.2
6
am
0.3
7
am
0.9
8
am
2.3
9
am
3.8
10
am
4.8
11
am
5
12
pm
4.5
1
pm
3.3
2
pm
2.1
3
pm
1.1
4
pm
0.4
5
pm
-0.1
6
pm
-0.6
7
pm
-0.5
8
pm
0.4
9
pm
1.9
10
pm
3.1
11
pm
3.7

Tide / Current for Cape Cod Canal, Massachusetts Current
  
Edit  Tide Week   Hide   Help
Cape Cod Canal
Click for Map
Sat -- 01:45 AM EST     -4.75 knots Max Ebb
Sat -- 04:46 AM EST     0.21 knots Slack
Sat -- 06:23 AM EST     Sunrise
Sat -- 07:44 AM EST     4.52 knots Max Flood
Sat -- 10:25 AM EST     Moonset
Sat -- 10:56 AM EST     -0.02 knots Slack
Sat -- 02:04 PM EST     -5.01 knots Max Ebb
Sat -- 04:28 PM EST     Sunset
Sat -- 05:12 PM EST     0.22 knots Slack
Sat -- 07:00 PM EST     Moonrise
Sat -- 08:19 PM EST     4.80 knots Max Flood
Sat -- 11:49 PM EST     -0.21 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Cape Cod Canal, Massachusetts Current does not exist in database. Press Edit above and select a valid nearby location.

Cape Cod Canal, Massachusetts Current, knots
12
am
-3.5
1
am
-4.5
2
am
-4.7
3
am
-4.2
4
am
-2.9
5
am
1.6
6
am
3.5
7
am
4.4
8
am
4.5
9
am
4.1
10
am
3
11
am
-0.8
12
pm
-3.4
1
pm
-4.6
2
pm
-5
3
pm
-4.7
4
pm
-3.7
5
pm
-1.5
6
pm
3
7
pm
4.3
8
pm
4.8
9
pm
4.7
10
pm
4.1
11
pm
2.9

Area Discussion for Boston, MA
   Hide   Help   
NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 090516 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1216 AM EST Sun Nov 9 2025

SYNOPSIS
Mainly dry tonight and early Sunday. A warm front will bring increasing clouds during the day Sunday with showers/rain arriving afternoon-early evening. Area of low pressure will bring another round of rain Sunday night into Monday, ending Monday evening. Blustery and unseasonably cold weather follows the storm on Tuesday. Temperatures moderate somewhat for Wednesday and Thursday but remain below normal, then another surge of colder air moves in for Friday and Saturday with mostly dry conditions.

NEAR TERM /UNTIL 6 AM THIS MORNING/
Key Messages:

* Cool and mainly dry tonight.

Brief surface high pressure will be over the region tonight support dry conditions with clear skies to start the night with a deck of mid level clouds moving through overnight. High-res guidance hints at the potential for an isolated shower out west overnight, but there should be enough dry air in place to limit this, worst case a sprinkle/flake. NW winds decrease after sunset turning toward the NE overnight. This will allow decent cooling with temperatures falling into the 30s for the interior and low 40s for coastal areas.

SHORT TERM /6 AM THIS MORNING THROUGH 6 PM MONDAY/
Key Messages:

* Round of showers/rain arrive in the afternoon, decreasing late Sunday night.

Details...

A frontal system will approach the region Sunday morning, eventually pushing northeastward across southern New England toward the evening. This will consist of a surface low tracking over NY while a secondary weak low tracks across SE MA or just offshore. An associated warm front will push northward on Sunday with higher moisture advecting into the region while providing some broad ascent. This will increase clouds Sunday morning generally from SW to NE. As the low tracks northward, this will push in a round of rain.

Global and high-resolution models are coming into better agreement on the timing of the rain with showers increasing from south to north between 12-4pm. There are still some difference in start time as there is potential for earlier drizzle ahead of the approaching warm front as the mid-upper levels gradually moisten. Showers/rain likely decrease Sunday night with some isolated weak showers or drizzle before it comes to an end a little around/little after midnight. HRRR guidance shows an areas of weak elevated instability brush across SE MA around the evening. This may support a brief rumble of thunder and some briefly higher rain rates. Rain amounts are expected to be light (< 0.25") for most. Slightly higher for Cape/Islands with a likely range of 0.25-0.50", locally up to 0.75" in any embedded convective showers.

High temperatures Sunday will depend on how far north the warm front makes it across southern New England. The south coast and Cape/Islands should stay on the warm end with highs in the upper 50s while northern MA will stay in the low to mid 50s with even some upper 40s for the higher terrain of northern MA.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/
Key Messages:

* Periods of rain Monday ending during the evening

* Blustery and unseasonably cold Tue. Wind gusts to 30-40 mph

* Mostly dry and blustery at times Wed through Sat with below normal temps.

High amplitude upper trough from Gt Lakes to the Gulf coast will lift NE across New England during Tue. Surface low pres moves off the mid Atlc coast and tracks across SE New Eng late Mon before lifting N into Maine Mon night. Strong shortwave energy and favorable upper jet dynamics combined with deep moisture plume will bring periods of rain Mon. Ensemble guidance not indicating any heavy rainfall with 0.50" QPF probs close to zero. Temps may get close to 60 across SE New Eng where best chance to briefly get into warm sector along the low track, but low-mid 50s further inland and 40s in the Berkshires. Rain ends Mon evening as the low pres lifts to the north followed by much drier air moving in from the west. The rain may end as a brief period of snow showers in the Berkshires as the column cools from top down, but elsewhere dry air should win out before it gets cold enough for any snow. Lows Mon night will drop into the mid-upper 20s interior and lower 30s coastal plain.

Blustery and unseasonably cold day Tue as deep upper trough moves across New Eng. 850 mb temps drop to near -10C which will result in highs ranging from mid-upper 30s higher terrain to low 40s coastal plain. Soundings show a deep and well mixed boundary layer Tue supporting westerly wind gusts to 30-40 mph in the afternoon making it feel more like the 20s and 30s. It looks mainly dry as the column is quite dry with PWATs less than 0.2" but can't rule out a few flurries or snow showers in the higher terrain as cold pool aloft with -35C 500 mb temps move into the region. And a few ocean effect showers are possible over the Islands. Otherwise sunshine will mix with developing diurnal cu.

Deep upper trough moves out Tue night but broad trough sets up across New Eng through the end of the week as a series of fast moving shortwaves reinforce the trough. The trough then amplifies east of New Eng on Saturday. Moisture is quite limited so expecting dry conditions most of the time with sunshine and diurnal cu, but can't rule out a few brief showers at times Wed through Fri, with low confidence on timing. Temps recover Wed-Thu but remain below normal then another shot of colder air moves back in for Fri-Sat. It will also be blustery at times from multiple shortwave passages.

AVIATION /06Z SUNDAY THROUGH THURSDAY/
Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

06Z TAF Update:

Tonight: High confidence.

VFR. Winds turn NW to NE under 10 kt through 04-06z. Few mid- level decks may move through overnight.

Sunday: Moderate confidence.

VFR early AM, trending MVFR after 15z as showers arrive from the south 17-21z. IFR with pockets of LIFR conditions possible in evening. E winds 8-12 kts with some gusts around 18 kts possible closer to 20 kts for Cape/Islands.

Sunday Night: Moderate Confidence.

MVFR. Models are trending toward more widespread IFR and LIFR ceilings overnight although confidence is still moderate for extent of LIFR. Winds E turning SE for the coastal terminals. Speeds 8-12 kts for eastern terminals and less than 10 kts for interior terminals. Gusts around 20 kts for Cape/Islands early. Winds overall decrease toward 12z.

KBOS Terminal...Moderate confidence in TAF.
NW to NE winds tonight less than 10 kts. Low end VFR to MVFR ceilings develop after 15z. Showers likely arrive between 20-22z with ceilings dropping more uniformly to MVFR. Chance for IFR overnight.

KBDL Terminal...Moderate confidence in TAF.
Low end VFR to MVFR ceilings develop after 14z. Showers likely arrive between 18-20z with ceilings dropping more uniformly to MVFR. Chance for IFR and perhaps LIFR overnight.

Outlook /Monday Night through Thursday/...

Monday: MVFR/IFR conditions possible. RA likely.

Monday Night: Mainly VFR, with local MVFR possible. Breezy.
Slight chance SHRA.

Veterans Day through Tuesday Night: VFR. Windy with gusts up to 35 kt.

Wednesday: Mainly VFR, with local MVFR possible. Windy with gusts up to 30 kt. Slight chance SHRA.

Wednesday Night: VFR. Breezy. Slight chance SHRA.

Thursday: VFR. Breezy.

MARINE
Forecaster Confidence Levels...

Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.

Winds decrease below 25 kts this afternoon-tonight, but seas 3-6 ft have kept SCAs going for the southern outer waters tonight.
There will be a period period of sub-SCA conditions Sunday morning before SE winds increase to 15-25 kt Sunday afternoon/evening. This may support another issuance of SCAs for that time frame. Another period of light rains Sunday afternoon-night.

Outlook /Monday Night through Thursday/...

Monday: Winds less than 25 kt. Seas up to 5 ft. Rain likely.

Monday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Chance of rain showers.

Veterans Day: Strong winds with gusts up to 40 kt. Rough seas up to 14 ft. Slight chance of rain showers.

Tuesday Night: Moderate risk for gale force winds with gusts up to 40 kt. Rough seas up to 15 ft. Slight chance of rain showers.

Wednesday: Strong winds with gusts up to 35 kt. Rough seas up to 14 ft. Slight chance of rain showers.

Wednesday Night: Strong winds with gusts up to 35 kt. Areas of rough seas. Slight chance of rain showers.

Thursday: Strong winds with gusts up to 30 kt. Areas of rough seas. Slight chance of rain showers.

TIDES/COASTAL FLOODING
Astronomical tides are still running high coming out of the full moon from late in the week, but should continue to fall during the Sunday and Monday. Continuing to monitor the high tides Sunday and Monday mornings at Nantucket for possible minor coastal flooding, with Stevens Institute supporting about a 1 ft storm surge. However, Stevens Institute guidance keeps means below minor flood stage for Nantucket as well as locations like Boston for the Sun/Mon high tides. However, their "reasonable worst case" indicates there is potential for Nantucket to reach minor flood stage Monday.

Will continue to reassess this potential over the next day/two for possible coastal flood headlines, but significant flooding is not expected.

BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 4 AM EST early this morning for ANZ255-256.


Weather Reporting Stations
   Edit   Hide   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
WAXM3 - Waquoit Bay Reserve, MA 13 mi95 minWNW 1 41°F 29.8939°F
BZBM3 - 8447930 - Woods Hole, MA 15 mi50 min 51°F 55°F29.93
NBGM3 15 mi50 minNNE 1G1.9 48°F 29.95
44090 19 mi50 min 53°F 54°F1 ft
44020 - NANTUCKET SOUND 26 mi30 minESE 5.8G7.8 54°F 54°F1 ft29.9146°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 27 mi50 min0G0 49°F 29.96
FRVM3 - 8447386 - Fall River, MA 27 mi50 min 49°F 53°F29.96
FRXM3 28 mi50 min 47°F 39°F
44085 31 mi50 min 55°F 56°F5 ft
BUZM3 - Buzzards Bay, MA 31 mi80 minE 8G8.9 29.95
CPTR1 - 8452944 - Conimicut Light, RI 36 mi50 min0G1 48°F 53°F29.95
NAXR1 - Narragansett Bay Reserve, RI 37 mi95 minNE 1.9 47°F 29.9542°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 37 mi50 min0G0 48°F 29.95
CHTM3 38 mi50 min 51°F 29.94
PVDR1 38 mi50 min0G1 49°F 29.96
NWPR1 - 8452660 - Newport, RI 39 mi50 min0G1.9 50°F 56°F29.95
FOXR1 - 8454000 - Providence, RI 40 mi50 minE 1.9G2.9 49°F 51°F29.95
PDVR1 41 mi50 min0G1.9 46°F 29.9538°F
44013 - BOSTON 16 NM East of Boston, MA 42 mi30 minE 9.7G12 53°F 53°F2 ft29.9644°F
NTKM3 - 8449130 - Nantucket Island, MA 43 mi50 minSSE 1.9G1.9 47°F 51°F29.94
BHBM3 - 8443970 - Boston, MA 47 mi50 min 51°F 29.94


Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    Edit   Hide   Help
toggle option: (graph/table)

Airport Reports
   
Edit   Hide   Help   Click EDIT to display multiple airports. Follow links for more data.

Weather Map
   Hide   Help

GEOS Local Image of north east  
Edit   Hide

Boston, MA,





NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE