Marine Forecast
Illustrated map of Rehoboth Bay

Marine forecast

Cape May–Fenwick I. (20-60 nm), DE

current wind
10 kt S
Gusts
12 kt
Seas
1.6 ft
Period
6 sec
Air
67°F

Observed Tue 3:00 PM | ANZ485

Gusts now
12 kt
Seas now
1.6 ft · 6 sec
Air
67°F
72-hr peak
23 kt
Peak seas
5 ft

In brief

At 3:00 pm EDT on Oct 13, 2026, NDBC station 44009 (DELAWARE BAY 26 NM Southeast of Cape May, NJ, 9 miles away) measured wind from the S at 10 kt, gusting to 12 kt; buoy 44084 measured seas of 1.6 ft. The NWS forecast for Cape May–Fenwick I. (20-60 nm), DE issued at 9:18 am EDT on Oct 13, 2026 reads, for today: “W winds around 5 kt, becoming SW early this afternoon, then increasing to 10 to 15 kt late. Seas around 3 ft.”

Source: National Weather Service Mount Holly NJ forecast; NDBC observations

Wind forecast · ktPeak 23 kt

05101520253035Wed 14Thu 15Fri 1605101520253035Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | EDT

Seas forecast · ftPeak 5 ft

012345Wed 14Thu 15Fri 16012345Wed 14Thu 15Fri 16
Oct 13-16 | EDT

NWS marine forecast

PeriodForecast
TodayW winds around 5 kt, becoming SW early this afternoon, then increasing to 10 to 15 kt late. Seas around 3 ft.
TonightS winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 3 to 4 ft.
WedSW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Wed NightSW winds 10 to 15 kt, becoming NW with gusts up to 20 kt after midnight. Seas 3 to 4 ft.
ThuNE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Thu NightE winds 10 to 15 kt, becoming SE after midnight. Seas 3 to 4 ft. A chance of showers after midnight.
FriS winds 15 to 20 kt, becoming SW 20 to 25 kt in the afternoon. Seas 3 to 5 ft. A chance of showers.
Fri NightNW winds 25 to 35 kt. Seas 6 to 9 ft, building to 8 to 11 ft after midnight. A chance of showers.
SatNW winds 30 to 35 kt. Seas 9 to 12 ft.
Sat NightNW winds 25 to 30 kt, becoming N 20 to 25 kt after midnight. Seas 7 to 10 ft.

Issued Tue 9:18 AM by Mount Holly NJ (product CWFPHI).

TimeWindGustSeasWater
Tue 3:00 PM 10 kt S 12 kt — —
Tue 2:50 PM 10 kt S 12 kt — —
Tue 1:50 PM 10 kt SSW 12 kt — —
Tue 12:50 PM 8 kt S 10 kt — —
Tue 11:50 AM 4 kt SSW 6 kt — —
Tue 10:50 AM 4 kt SW 6 kt — —
Tue 9:50 AM 4 kt WSW 4 kt — —
Tue 8:50 AM 4 kt W 6 kt — —
Tue 7:50 AM 6 kt W 8 kt — —
Tue 6:50 AM 4 kt W 6 kt — —
Tue 5:50 AM 6 kt WSW 8 kt — —
Tue 4:50 AM 6 kt W 8 kt — —

Observed Tue 3:00 PM at NDBC buoy 44009 (DELAWARE BAY 26 NM Southeast of Cape May, NJ), 8.6 miles away. Seas from buoy 44084 (Bethany Beach, DE (263)), 23.5 miles away, at Tue 2:26 PM.

What is the marine forecast for Cape May–Fenwick I. (20-60 nm) today?

Today: W winds around 5 kt, becoming SW early this afternoon, then increasing to 10 to 15 kt late. Seas around 3 ft.

Is there a small craft advisory for Cape May–Fenwick I. (20-60 nm)?

No advisories, warnings or watches are in effect for NWS zone ANZ485 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at Cape May–Fenwick I. (20-60 nm) right now?

Seas are running 1.6 ft at a 6-second period, measured at NDBC buoy 44009 Tue 3:00 PM, 8.6 miles from this zone. The forecast peaks at 5.0 ft Fri 11 AM.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone ANZ485, issued by Mount Holly NJ, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product CWFPHI, issued Tue 9:18 AM. Observations: NOAA National Data Buoy Center station 44009, read Tue 3:00 PM. Retrieved Oct 13, 3:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.