Sea data for Casco Bay, Portland (Open-Meteo marine model). Conditions differ along the coast and on bays, lakes and rivers.
Can small boats go out now?
Fair – moderate seas
- Waves
- 1.8 ft
- Sea state
- Slight
- Wind
- 0 mph N
- Gusts
- 0 mph
- Swell
- 1.1 ft
- Wave period
- 5 s
- Water temperature
- 56 °F
- Visibility
- 6.2 mi
Wave height – next 48 hours
Amber ≥ 4.1 ft (caution), red ≥ 8.2 ft (dangerous for small boats).
Best fishing times today
Waning gibbous · strong tides- High tide turn12:05 AM – 2:05 AM
- Low tide turn5:56 AM – 7:56 AM
- Dawn bite6:11 AM – 8:11 AM
- High tide turn12:16 PM – 2:16 PM
- Dusk bite4:33 PM – 6:33 PM
- Low tide turn6:42 PM – 8:42 PM
Fish feed most actively around dawn, dusk and when the tide turns. New and full moon bring stronger currents.
7-day sea outlook
| Day | Max waves | Wind | Rain | Small boats |
|---|---|---|---|---|
| Today | 3.1 ft | 11 mph | 0% | Fair |
| Tomorrow | 3.1 ft | 13 mph | 96% | Fair |
| Sat, Oct 31 | 1.8 ft | 11 mph | 0% | Fair |
| Sun, Nov 1 | 1.1 ft | 8 mph | 0% | Good |
| Mon, Nov 2 | 2.2 ft | 9 mph | 62% | Fair |
| Tue, Nov 3 | 3.8 ft | 7 mph | 6% | Fair |
| Wed, Nov 4 | – | 8 mph | 0% | Good |
Always wear a life jacket, file a float plan (tell someone your route and return time), check the NWS marine forecast and Small Craft Advisories and monitor VHF channel 16 / NOAA Weather Radio. Do not go out when a gale, storm or tropical warning is in effect. U.S. Coast Guard emergencies: VHF 16 or 911.