Portland Maine and Casco Bay Marine Weather
Marine Forecast
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TODAY NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt late. Seas 2 to 4 ft.
TONIGHT N winds around 5 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less.
FRI S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM in the afternoon.
FRI NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Showers likely, mainly in the evening with vsby 1 to 3 NM.
SAT NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
SAT NIGHT NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.
SUN W winds 5 to 10 kt. Seas around 2 ft.
SUN NIGHT SW winds 5 to 10 kt. Seas 1 foot or less.
MON SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
MON NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft.
TONIGHT N winds around 5 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less.
FRI S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM in the afternoon.
FRI NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Showers likely, mainly in the evening with vsby 1 to 3 NM.
SAT NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
SAT NIGHT NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.
SUN W winds 5 to 10 kt. Seas around 2 ft.
SUN NIGHT SW winds 5 to 10 kt. Seas 1 foot or less.
MON SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
MON NIGHT SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. 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 allThursday
58°F
Sunny
5 to 15 mph NW
Thursday Night
45°F
Partly Cloudy
5 mph NE
Friday
61°F
Rain Showers
10 to 20 mph S
Friday Night
43°F
Rain Showers Likely
10 to 15 mph W
Tides and Currents
View all| Time | Event | Height/Speed |
|---|---|---|
| Thu, Oct 15 3:12 AM | slack | slack |
| Thu, Oct 15 6:13 AM | ebb | 0.9 kts |
| Thu, Oct 15 8:34 AM | low | 1.6 ft |
| Thu, Oct 15 9:54 AM | slack | slack |
| Thu, Oct 15 12:10 PM | flood | 0.5 kts |
| Thu, Oct 15 2:45 PM | high | 9.3 ft |
| Thu, Oct 15 3:11 PM | slack | slack |
| Thu, Oct 15 6:40 PM | ebb | 0.9 kts |
| Thu, Oct 15 9:13 PM | low | 0.8 ft |
| Thu, Oct 15 10:40 PM | slack | slack |
| Fri, Oct 16 12:50 AM | flood | 0.5 kts |
| Fri, Oct 16 3:31 AM | high | 8.1 ft |