Marine Weather and Tide Forecast for Smyrna, DE
 | Sunrise 6:17 AM Sunset 7:45 PM Moonrise 7:09 AM Moonset 11:13 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 402 Am Edt Mon Apr 20 2026
Today - W winds 5 to 10 kt, becoming nw 10 to 15 kt with gusts up to 20 kt late this morning and afternoon. Seas 1 foot or less, then around 2 ft this afternoon. Wave detail: nw 1 foot at 2 seconds, becoming nw 2 ft at 3 seconds. A slight chance of showers late this morning and early afternoon.
Tonight - N winds 10 to 15 kt. Seas around 2 ft. Wave detail: N 2 ft at 3 seconds.
Tue - N winds 5 to 10 kt, becoming S in the afternoon. Seas 1 foot or less. Wave detail: ne 1 foot at 2 seconds.
Tue night - S winds 10 to 15 kt. Seas 1 foot or less, then around 2 ft after midnight. Wave detail: se 1 foot at 3 seconds, becoming se 2 ft at 4 seconds. A chance of showers after midnight.
Wed - SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave detail: S 2 ft at 4 seconds, becoming se 1 foot at 5 seconds. A chance of showers.
Wed night - N winds around 5 kt. Seas 1 foot or less. Wave detail: se 1 foot at 4 seconds. A chance of showers in the evening.
Thu - NW winds around 5 kt. Seas 1 foot or less.
Thu night - SW winds around 5 kt, becoming nw after midnight. Seas 1 foot or less.
Fri - E winds 5 to 10 kt. Seas 1 foot or less.
Fri night - SE winds 5 to 10 kt. Seas 1 foot or less. A chance of showers.
ANZ400 402 Am Edt Mon Apr 20 2026
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay -
a weak system will cross the area through about the first half of today, then cold high pressure builds into the region tonight into Tuesday before shifting offshore. A weak cold front should settle south of our area Wednesday, then approach as a warm front Friday into Saturday. An area of low pressure may then arrive later Saturday or on Sunday.
a weak system will cross the area through about the first half of today, then cold high pressure builds into the region tonight into Tuesday before shifting offshore. A weak cold front should settle south of our area Wednesday, then approach as a warm front Friday into Saturday. An area of low pressure may then arrive later Saturday or on Sunday.
7 Day Forecast for Marine Location Near Smyrna, DE
NEW! Add second zone forecast
| Taylors Bridge Click for Map Mon -- 03:24 AM EDT 3.45 feet High Tide Mon -- 06:18 AM EDT Sunrise Mon -- 08:09 AM EDT Moonrise Mon -- 09:50 AM EDT 0.09 feet Low Tide Mon -- 04:06 PM EDT 2.81 feet High Tide Mon -- 07:45 PM EDT Sunset Mon -- 09:44 PM EDT 0.25 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Taylors Bridge, Blackbird Creek, Delaware River, Delaware, Tide feet
| 12 am |
| 1.9 |
| 1 am |
| 2.6 |
| 2 am |
| 3.2 |
| 3 am |
| 3.4 |
| 4 am |
| 3.4 |
| 5 am |
| 2.8 |
| 6 am |
| 2.1 |
| 7 am |
| 1.4 |
| 8 am |
| 0.8 |
| 9 am |
| 0.3 |
| 10 am |
| 0.1 |
| 11 am |
| 0.4 |
| 12 pm |
| 1 |
| 1 pm |
| 1.7 |
| 2 pm |
| 2.3 |
| 3 pm |
| 2.7 |
| 4 pm |
| 2.8 |
| 5 pm |
| 2.6 |
| 6 pm |
| 2 |
| 7 pm |
| 1.3 |
| 8 pm |
| 0.7 |
| 9 pm |
| 0.4 |
| 10 pm |
| 0.3 |
| 11 pm |
| 0.5 |
| Smyrna River entrance Click for Map Flood direction 250 true Ebb direction 70 true Mon -- 02:11 AM EDT -0.00 knots Slack Mon -- 05:16 AM EDT -2.09 knots Max Ebb Mon -- 06:17 AM EDT Sunrise Mon -- 08:09 AM EDT Moonrise Mon -- 08:27 AM EDT 0.00 knots Slack Mon -- 11:10 AM EDT 1.39 knots Max Flood Mon -- 02:26 PM EDT -0.00 knots Slack Mon -- 05:28 PM EDT -2.08 knots Max Ebb Mon -- 07:44 PM EDT Sunset Mon -- 08:17 PM EDT 0.00 knots Slack Mon -- 11:14 PM EDT 1.86 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
Smyrna River entrance, Delaware Current, knots
| 12 am |
| 1.5 |
| 1 am |
| 0.9 |
| 2 am |
| 0.1 |
| 3 am |
| -0.8 |
| 4 am |
| -1.7 |
| 5 am |
| -2.1 |
| 6 am |
| -1.9 |
| 7 am |
| -1.3 |
| 8 am |
| -0.4 |
| 9 am |
| 0.4 |
| 10 am |
| 1 |
| 11 am |
| 1.4 |
| 12 pm |
| 1.3 |
| 1 pm |
| 0.9 |
| 2 pm |
| 0.3 |
| 3 pm |
| -0.6 |
| 4 pm |
| -1.5 |
| 5 pm |
| -2 |
| 6 pm |
| -2 |
| 7 pm |
| -1.4 |
| 8 pm |
| -0.3 |
| 9 pm |
| 0.7 |
| 10 pm |
| 1.4 |
| 11 pm |
| 1.8 |
Area Discussion for Philadelphia/Mount Holly, PA
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FXUS61 KPHI 200701 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 301 AM EDT Mon Apr 20 2026
WHAT HAS CHANGED
The Freeze Watch has been upgraded to a Freeze Warning for tonight.
KEY MESSAGES
1. A strong cold front passes through the region into this morning leading to below normal temperatures. Frost and freeze headlines remain in place due to these below normal temperatures.
2. A return to above average temperatures later this week before cooling down again over the weekend. Widespread rainfall possible over the weekend.
DISCUSSION
KEY MESSAGE 1...A strong cold front passes through the region into this morning leading to below normal temperatures. Frost and freeze headlines remain in place due to these below normal temperatures.
After a chillier night with frost and freeze headlines, we see temperatures today reach into the mid 40s to mid 50s for many. Some mid-level energy rotates through the region today allowing for the potential for isolated showers to develop mainly southeast of the I- 95 corridor. Generally, these showers will be in the form of light rain but the cold air aloft may allow the potential for some graupel to mix in.
Behind the cold front, a high pressure system moves east out of the Great Lakes region and overhead tonight. This high pressure system allows for a good opportunity for radiational cooling with a clearing sky and light winds. A widespread freeze looks to occur tonight into early tomorrow morning and a Freeze Warning is now in effect for the whole area except for the immediate coast. All of our counties now have an active growing season due to the recent excessive warmth. Blooms/vegetation have quickly initiated and in some cases are ahead of schedule. Fruit trees and other cold sensitive plants already planted are of the most concern. Frost formation might be somewhat limited given a much drier low-level air mass in place tonight. Lows tonight generally range from the mid 20s to low 30s with mid to upper 30s near the coast.
KEY MESSAGE 2...A return to above average temperatures later this week before cooling down again over the weekend. Widespread rainfall possible over the weekend.
A very cold start to the day Tuesday as the center of high pressure shifts offshore, and high temperatures will continue to be several degrees below average. It is not anticipated to be as cold Tuesday night as the air mass continues to modify and clouds increase. A return, southerly, flow will also become established Tuesday and continue Wednesday. This along with an increase in warm air advection and rising heights will result in temperatures climbing back above average Wednesday through Friday. Highs for most of the area are forecast to be in the mid/upper 60s Wednesday, then into the 70s for Thursday and Friday. A front may arrive Friday into Saturday with some showers, and with the low-level flow more onshore it will bring in some cooling starting Friday especially closer to the coast. If the marine influence ends up being stronger Friday into Saturday, then more low clouds may come into play along with even cooler temperatures. An area of low pressure may arrive during the weekend, especially for Sunday, bringing the potential for widespread showers or a period of rain. The strength and timing of the involved features however is lower confidence. The pattern that is currently indicated among the model guidance however would result in temperatures dropping to average or below average over the weekend, with an increased chance for rainfall.
AVIATION /06Z MONDAY THROUGH FRIDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Rest of Tonight...Mainly VFR conditions. Westerly winds around 5 knots or less with periods of light and variable winds. SCT to BKN ceilings move in from west to east through 12Z. High confidence.
Monday...VFR. A few light/brief showers or sprinkles possible during the day. BKN ceilings around 5000-6000 feet. West-northwest wind gusting to around 20 knots during the afternoon. High confidence.
Monday night...VFR. A north wind around 5 knots. High confidence.
Outlook...
Tuesday...VFR.
Wednesday...Sub-VFR conditions possible with some showers/low clouds, then VFR at night.
Thursday...VFR.
Friday...Areas of sub-VFR conditions possible due to low clouds and a chance for some showers.
MARINE
Winds increase through this morning and into the afternoon out of the northwest. During the afternoon, gusts look to reach 15-20 knots. Tonight winds turn out of the north with gusts continuing around 15-20 knots. Seas of 2 to 4 feet are expected through the period.
Outlook...
Tuesday and Wednesday....A mostly brief period of Small Craft Advisory conditions are possible Tuesday night into Wednesday morning.
Thursday and Friday...The conditions are anticipated to be below Small Craft Advisory criteria.
PHI WATCHES/WARNINGS/ADVISORIES
PA...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for PAZ054-055-060>062-070-071-101>106.
Freeze Warning until 10 AM EDT this morning for PAZ054-055.
Frost Advisory until 8 AM EDT this morning for PAZ062.
NJ...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for NJZ001-007>010-012-013-015>023-027.
Freeze Warning until 10 AM EDT this morning for NJZ001.
Frost Advisory until 8 AM EDT this morning for NJZ007>010.
DE...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for DEZ001>003.
MD...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for MDZ012-015-019-020.
MARINE...None.
Area Forecast Discussion National Weather Service Mount Holly NJ 301 AM EDT Mon Apr 20 2026
WHAT HAS CHANGED
The Freeze Watch has been upgraded to a Freeze Warning for tonight.
KEY MESSAGES
1. A strong cold front passes through the region into this morning leading to below normal temperatures. Frost and freeze headlines remain in place due to these below normal temperatures.
2. A return to above average temperatures later this week before cooling down again over the weekend. Widespread rainfall possible over the weekend.
DISCUSSION
KEY MESSAGE 1...A strong cold front passes through the region into this morning leading to below normal temperatures. Frost and freeze headlines remain in place due to these below normal temperatures.
After a chillier night with frost and freeze headlines, we see temperatures today reach into the mid 40s to mid 50s for many. Some mid-level energy rotates through the region today allowing for the potential for isolated showers to develop mainly southeast of the I- 95 corridor. Generally, these showers will be in the form of light rain but the cold air aloft may allow the potential for some graupel to mix in.
Behind the cold front, a high pressure system moves east out of the Great Lakes region and overhead tonight. This high pressure system allows for a good opportunity for radiational cooling with a clearing sky and light winds. A widespread freeze looks to occur tonight into early tomorrow morning and a Freeze Warning is now in effect for the whole area except for the immediate coast. All of our counties now have an active growing season due to the recent excessive warmth. Blooms/vegetation have quickly initiated and in some cases are ahead of schedule. Fruit trees and other cold sensitive plants already planted are of the most concern. Frost formation might be somewhat limited given a much drier low-level air mass in place tonight. Lows tonight generally range from the mid 20s to low 30s with mid to upper 30s near the coast.
KEY MESSAGE 2...A return to above average temperatures later this week before cooling down again over the weekend. Widespread rainfall possible over the weekend.
A very cold start to the day Tuesday as the center of high pressure shifts offshore, and high temperatures will continue to be several degrees below average. It is not anticipated to be as cold Tuesday night as the air mass continues to modify and clouds increase. A return, southerly, flow will also become established Tuesday and continue Wednesday. This along with an increase in warm air advection and rising heights will result in temperatures climbing back above average Wednesday through Friday. Highs for most of the area are forecast to be in the mid/upper 60s Wednesday, then into the 70s for Thursday and Friday. A front may arrive Friday into Saturday with some showers, and with the low-level flow more onshore it will bring in some cooling starting Friday especially closer to the coast. If the marine influence ends up being stronger Friday into Saturday, then more low clouds may come into play along with even cooler temperatures. An area of low pressure may arrive during the weekend, especially for Sunday, bringing the potential for widespread showers or a period of rain. The strength and timing of the involved features however is lower confidence. The pattern that is currently indicated among the model guidance however would result in temperatures dropping to average or below average over the weekend, with an increased chance for rainfall.
AVIATION /06Z MONDAY THROUGH FRIDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Rest of Tonight...Mainly VFR conditions. Westerly winds around 5 knots or less with periods of light and variable winds. SCT to BKN ceilings move in from west to east through 12Z. High confidence.
Monday...VFR. A few light/brief showers or sprinkles possible during the day. BKN ceilings around 5000-6000 feet. West-northwest wind gusting to around 20 knots during the afternoon. High confidence.
Monday night...VFR. A north wind around 5 knots. High confidence.
Outlook...
Tuesday...VFR.
Wednesday...Sub-VFR conditions possible with some showers/low clouds, then VFR at night.
Thursday...VFR.
Friday...Areas of sub-VFR conditions possible due to low clouds and a chance for some showers.
MARINE
Winds increase through this morning and into the afternoon out of the northwest. During the afternoon, gusts look to reach 15-20 knots. Tonight winds turn out of the north with gusts continuing around 15-20 knots. Seas of 2 to 4 feet are expected through the period.
Outlook...
Tuesday and Wednesday....A mostly brief period of Small Craft Advisory conditions are possible Tuesday night into Wednesday morning.
Thursday and Friday...The conditions are anticipated to be below Small Craft Advisory criteria.
PHI WATCHES/WARNINGS/ADVISORIES
PA...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for PAZ054-055-060>062-070-071-101>106.
Freeze Warning until 10 AM EDT this morning for PAZ054-055.
Frost Advisory until 8 AM EDT this morning for PAZ062.
NJ...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for NJZ001-007>010-012-013-015>023-027.
Freeze Warning until 10 AM EDT this morning for NJZ001.
Frost Advisory until 8 AM EDT this morning for NJZ007>010.
DE...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for DEZ001>003.
MD...Freeze Warning from midnight tonight to 9 AM EDT Tuesday for MDZ012-015-019-020.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| SJSN4 - 8537121 - Ship John Shoal, NJ | 12 mi | 57 min | W 7G | 49°F | 59°F | 30.14 | ||
| CHCM2 - 8573927 - Chesapeake City, MD | 17 mi | 57 min | SSW 1G | 36°F | 30.14 | |||
| DELD1 - 8551762 - Delaware City, DE | 17 mi | 57 min | WNW 4.1G | 43°F | 30.12 | |||
| DRSD1 - Delaware Reserve, DE | 19 mi | 57 min | 0 | 38°F | 30.12 | 38°F | ||
| MRCP1 - 8540433 - Marcus Hook, PA | 34 mi | 57 min | 44°F | 59°F | 30.11 | |||
| TCBM2 - 8573364 - Tolchester Beach, MD | 35 mi | 57 min | E 1.9G | 44°F | 60°F | 30.14 | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 36 mi | 57 min | N 4.1G | 52°F | 30.10 | |||
| CMAN4 - 8536110 - Cape May, NJ | 43 mi | 57 min | E 1.9G | 43°F | 55°F | 30.13 | ||
| LWSD1 - 8557380 - Lewes, DE | 46 mi | 57 min | SSW 2.9G | 44°F | 55°F | 30.14 | ||
| CPVM2 | 48 mi | 57 min | 50°F | 35°F | ||||
| PHBP1 - 8545240 - Philadelphia, PA | 48 mi | 57 min | 43°F | 64°F | 30.12 |
Wind History for Ship John Shoal, NJ
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KDOV
Terminal Aerodrome Forecast (TAF) for KDOV
Wind History Graph: DOV
(wind in knots)
GEOS Local Image of east us
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