Sea data for San Juan (Open-Meteo marine model). Conditions differ along the coast and on bays, lakes and rivers.
NWS: Rip Current Statement — read the alerts.
Can small boats go out now?
Fair – moderate seas
- Waves
- 3.5 ft
- Sea state
- Slight
- Wind
- 1 mph S
- Gusts
- 2 mph
- Swell
- 3.3 ft
- Wave period
- 10 s
- Water temperature
- 85 °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- Low tide turn2:30 AM – 4:30 AM
- Dawn bite5:22 AM – 7:22 AM
- High tide turn9:50 AM – 11:50 AM
- Low tide turn4:45 PM – 6:45 PM
- Dusk bite4:53 PM – 6:53 PM
- High tide turn9:30 PM – 11:30 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 | 3.8 ft | 7 mph | 100% | Fair |
| Tomorrow | 3 ft | 10 mph | 27% | Fair |
| Sat, Oct 31 | 2.6 ft | 9 mph | 100% | Fair |
| Sun, Nov 1 | 2.6 ft | 8 mph | 100% | Fair |
| Mon, Nov 2 | 3.1 ft | 7 mph | 83% | Fair |
| Tue, Nov 3 | 2.9 ft | 7 mph | 70% | Fair |
| Wed, Nov 4 | 2.9 ft | 8 mph | 100% | Fair |
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.