Portland Maine and Casco Bay Marine Weather
Marine Forecast
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TODAY W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers early this afternoon.
TONIGHT NW winds 5 to 10 kt. Seas around 2 ft.
TUE W winds 5 to 10 kt. Seas around 2 ft.
TUE NIGHT W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
WED NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
WED NIGHT NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft.
THU NE winds around 5 kt. Seas 1 foot or less.
THU NIGHT NE winds 5 to 10 kt, increasing to 15 to 20 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. A chance of rain after midnight.
FRI NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely with a chance of snow in the morning, then rain likely in the afternoon. Vsby 1 to 3 NM in the morning.
FRI NIGHT NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely.
TONIGHT NW winds 5 to 10 kt. Seas around 2 ft.
TUE W winds 5 to 10 kt. Seas around 2 ft.
TUE NIGHT W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
WED NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
WED NIGHT NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft.
THU NE winds around 5 kt. Seas 1 foot or less.
THU NIGHT NE winds 5 to 10 kt, increasing to 15 to 20 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. A chance of rain after midnight.
FRI NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely with a chance of snow in the morning, then rain likely in the afternoon. Vsby 1 to 3 NM in the morning.
FRI NIGHT NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely.
Portland Maine and Casco Bay Nautical Charts
NOAA nautical charts with your GPS position and a wind map for Portland Maine and Casco Bay in the Wind and Tides app
Weather
View allOvernight
42°F
Chance Rain Showers
10 mph SW
Monday
55°F
Mostly Sunny then Slight Chance Rain Showers
5 to 10 mph W
Monday Night
40°F
Mostly Cloudy
5 to 10 mph NW
Tuesday
53°F
Mostly Sunny
5 to 10 mph W
Tides and Currents
View all| Time (EST) | Event | Height/Speed |
|---|---|---|
| Mon, Nov 9 1:54 AM | ebb | 1.0 kts |
| Mon, Nov 9 4:31 AM | low | 0.7 ft |
| Mon, Nov 9 5:29 AM | slack | slack |
| Mon, Nov 9 7:43 AM | flood | 0.6 kts |
| Mon, Nov 9 10:42 AM | high | 10.2 ft |
| Mon, Nov 9 11:06 AM | slack | slack |
| Mon, Nov 9 2:16 PM | ebb | 1.1 kts |
| Mon, Nov 9 5:06 PM | low | -0.3 ft |
| Mon, Nov 9 5:58 PM | slack | slack |
| Mon, Nov 9 8:17 PM | flood | 0.7 kts |
| Mon, Nov 9 11:19 PM | high | 9.1 ft |
| Mon, Nov 9 11:46 PM | slack | slack |
Marine weather for Portland, Casco Bay, Portland Harbor, South Portland, Cape Elizabeth, Portland Head Light, Falmouth, Falmouth Foreside, Cousins Island, Yarmouth, the Royal River, Freeport, South Freeport, the Harraseeket River, the New Meadows River, Harpswell, Orr's Island, Bailey Island, Peaks Island, Long Island, Great Diamond Island, Chebeague Island, Cliff Island, the Calendar Islands, Hussey Sound, Broad Sound, and the Fore River, Maine. Wind, tides, and conditions for sailing, boating, fishing, sea kayaking, paddleboarding, and windsurfing.