Portland Maine and Casco Bay Marine Weather
Marine Forecast
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TODAY S winds 10 to 15 kt, increasing to 15 to 20 kt late. Seas 2 to 3 ft. Patchy fog late this morning and afternoon. A chance of rain this afternoon.
TONIGHT SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of rain after midnight.
FRI SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of rain in the morning, then rain in the afternoon. Patchy fog in the morning, then areas of fog in the afternoon.
FRI NIGHT SE winds around 5 kt, becoming NE after midnight. Seas 2 to 3 ft. Areas of fog in the evening. Rain.
SAT N winds 10 to 15 kt. Seas 2 to 3 ft. Rain likely, mainly in the morning.
SAT NIGHT N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain in the evening, then rain likely after midnight.
SUN NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely, mainly in the morning.
SUN NIGHT W winds 5 to 10 kt. Seas 2 to 3 ft.
MON W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
MON NIGHT W winds 5 to 10 kt. Seas 2 to 3 ft.
TONIGHT SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of rain after midnight.
FRI SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. A chance of rain in the morning, then rain in the afternoon. Patchy fog in the morning, then areas of fog in the afternoon.
FRI NIGHT SE winds around 5 kt, becoming NE after midnight. Seas 2 to 3 ft. Areas of fog in the evening. Rain.
SAT N winds 10 to 15 kt. Seas 2 to 3 ft. Rain likely, mainly in the morning.
SAT NIGHT N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain in the evening, then rain likely after midnight.
SUN NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely, mainly in the morning.
SUN NIGHT W winds 5 to 10 kt. Seas 2 to 3 ft.
MON W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
MON NIGHT W winds 5 to 10 kt. Seas 2 to 3 ft.
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
54°F
Partly Cloudy
5 to 10 mph SW
Thursday
65°F
Mostly Cloudy then Chance Light Rain
10 to 15 mph S
Thursday Night
58°F
Mostly Cloudy then Chance Light Rain
5 to 15 mph S
Friday
64°F
Light Rain
0 to 5 mph S
Tides and Currents
View all| Time (EST) | Event | Height/Speed |
|---|---|---|
| Thu, Nov 5 1:27 AM | low | 0.3 ft |
| Thu, Nov 5 2:16 AM | slack | slack |
| Thu, Nov 5 4:36 AM | flood | 0.6 kts |
| Thu, Nov 5 7:45 AM | high | 9.6 ft |
| Thu, Nov 5 8:06 AM | slack | slack |
| Thu, Nov 5 11:04 AM | ebb | 1.1 kts |
| Thu, Nov 5 1:58 PM | low | 0.4 ft |
| Thu, Nov 5 2:49 PM | slack | slack |
| Thu, Nov 5 5:06 PM | flood | 0.6 kts |
| Thu, Nov 5 8:11 PM | high | 9.4 ft |
| Thu, Nov 5 8:33 PM | slack | slack |
| Thu, Nov 5 11:28 PM | ebb | 1.0 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.