Portland Maine and Casco Bay Marine Weather
Marine Forecast
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TODAY W winds 5 to 10 kt, becoming S early this afternoon, then increasing to 10 to 15 kt late. Seas around 2 ft.
TONIGHT S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
TUE S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft.
TUE NIGHT SE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Showers with a chance of tstms.
WED S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Showers, mainly in the morning.
WED NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers in the evening.
THU W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 4 ft.
THU NIGHT SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft.
FRI NE winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft.
FRI NIGHT S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Winds and seas higher in and near tstms.
TONIGHT S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
TUE S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft.
TUE NIGHT SE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft. Showers with a chance of tstms.
WED S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Showers, mainly in the morning.
WED NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers in the evening.
THU W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 4 ft.
THU NIGHT SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 4 ft.
FRI NE winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft.
FRI NIGHT S winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Winds and seas higher in and near tstms.
Portland Maine and Casco Bay Nautical Charts
NOAA nautical charts for Portland Maine and Casco Bay in the Wind and Tides app
Weather
View allOvernight
59°F
Mostly Clear
0 mph
Monday
76°F
Sunny
0 to 10 mph SW
Monday Night
61°F
Partly Cloudy
10 mph S
Tuesday
71°F
Partly Sunny
10 to 20 mph S
Tides & Currents
View all| Time | Event | Height/Speed |
|---|---|---|
| Mon, Jul 20 1:32 AM | flood | 0.6 kts |
| Mon, Jul 20 4:18 AM | high | 9.5 ft |
| Mon, Jul 20 4:42 AM | slack | slack |
| Mon, Jul 20 7:44 AM | ebb | 1.0 kts |
| Mon, Jul 20 10:29 AM | low | 0.3 ft |
| Mon, Jul 20 11:35 AM | slack | slack |
| Mon, Jul 20 1:56 PM | flood | 0.6 kts |
| Mon, Jul 20 4:50 PM | high | 9.7 ft |
| Mon, Jul 20 5:13 PM | slack | slack |
| Mon, Jul 20 8:16 PM | ebb | 1.0 kts |
| Mon, Jul 20 11:04 PM | low | 0.7 ft |