Portland Maine and Casco Bay Marine Weather
Marine Forecast
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REST OF TONIGHT NE winds around 5 kt. Seas 1 foot or less.
THU NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then 1 to 2 ft in the afternoon. A chance of rain in the afternoon.
THU NIGHT NE winds 15 to 20 kt with gusts up to 30 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight. Rain.
FRI N winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely, mainly in the morning.
FRI NIGHT N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain in the evening.
SAT N winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
SAT NIGHT NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
SUN NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 to 2 ft.
SUN NIGHT NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 1 to 2 ft.
MON NW winds 5 to 10 kt. Seas 1 foot or less.
MON NIGHT NW winds around 5 kt. Seas 1 foot or less.
THU NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then 1 to 2 ft in the afternoon. A chance of rain in the afternoon.
THU NIGHT NE winds 15 to 20 kt with gusts up to 30 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight. Rain.
FRI N winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely, mainly in the morning.
FRI NIGHT N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain in the evening.
SAT N winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
SAT NIGHT NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
SUN NW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 to 2 ft.
SUN NIGHT NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 1 to 2 ft.
MON NW winds 5 to 10 kt. Seas 1 foot or less.
MON NIGHT NW winds around 5 kt. Seas 1 foot or less.
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
41°F
Cloudy
5 mph NE
Thursday
46°F
Chance Light Rain
5 to 10 mph NE
Thursday Night
35°F
Light Rain
10 to 15 mph NE
Friday
43°F
Light Rain Likely
15 mph N
Tides and Currents
View all| Time (EST) | Event | Height/Speed |
|---|---|---|
| Thu, Nov 12 12:39 AM | high | 8.6 ft |
| Thu, Nov 12 1:03 AM | slack | slack |
| Thu, Nov 12 4:00 AM | ebb | 0.9 kts |
| Thu, Nov 12 6:25 AM | low | 1.4 ft |
| Thu, Nov 12 7:31 AM | slack | slack |
| Thu, Nov 12 9:50 AM | flood | 0.5 kts |
| Thu, Nov 12 12:36 PM | high | 9.6 ft |
| Thu, Nov 12 1:00 PM | slack | slack |
| Thu, Nov 12 4:27 PM | ebb | 1.0 kts |
| Thu, Nov 12 7:03 PM | low | 0.4 ft |
| Thu, Nov 12 8:22 PM | slack | slack |
| Thu, Nov 12 10:33 PM | flood | 0.5 kts |
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.