Surf Forecasts:
How big are the waves at Gualala Rivermouth today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 6ft (1.8m), 7s period with NW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 2.5ft (0.8m), 18s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 2.5ft (0.8m), 18s period with SW swell.
The current surf forecast for Gualala Rivermouth at 4AM is: 0.7m 18s primary swell from a Southwest direction and 0.4m 13s secondary swell from a South-southwest direction, 1.3m 7s secondary swell from a Northwest direction (forecast issued at 10:00pm September 19). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 6ft (1.8m) | 7s |
| Afternoon (20 Sep) | 2.5ft (0.8m) | 18s |
| Evening (20 Sep) | 2.5ft (0.8m) | 18s |
Table - waves today at Gualala Rivermouth. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 12°C on Sat night). Winds increasing (light winds from the NNW on Mon morning, fresh winds from the NNW by Tue afternoon). | ||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | ||||||||||||||||
8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 18 | NW 7 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 |
Wave Graph  | ||||||||||||||||||
 kJ | 370 | 370 | 307 | 307 | 344 | 379 | 375 | 405 | 383 | 370 | 363 | 392 | 487 | 482 | 476 | 482 | 482 | 482 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:03AM1.63m | 6:42PM1.92m | 9:32AM1.69m | 7:43PM1.96m | ||||||||||||||
Low Tide | 1:32AM0.61m | 12:59PM1.47m | 2:22AM0.56m | 2:04PM1.39m | ||||||||||||||
 | | | |  | |  | |  | | | | | | | | | | |
 | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:13 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 13 | 12 | 13 | 16 | 17 | 16 | 13 | 14 | 13 | 13 | 13 | 17 | 17 | 17 | 14 | 14 |
Feels °C | 8 | 9 | 10 | 8 | 11 | 13 | 14 | 12 | 9 | 12 | 10 | 10 | 11 | 15 | 14 | 13 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 18 | NW 7 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | NW 8 | NW 8 | NW 7 | NW 8 | SW 17 | SW 17 | SW 17 | SW 17 |
| kJ | 370 | 370 | 307 | 307 | 167 | 379 | 375 | 405 | 383 | 370 | 181 | 181 | 176 | 181 | 476 | 482 | 482 | 482 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SSW 13 | S 12 | SSW 12 | S 12 | SSW 12 | SW 17 | SW 17 | SW 17 | SW 17 | WNW 9 | S 13 | S 12 | NW 16 |
| kJ | 58 | 58 | 57 | 57 | 311 | 31 | 48 | 30 | 47 | 29 | 362 | 358 | 487 | 482 | 55 | 29 | 28 | 124 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | SSW 13 | S 9 | SW 12 | SW 12 | SW 12 | S 9 | SSW 12 | S 12 | S 12 | S 13 | S 13 | NW 18 | NW 16 | S 12 |
| kJ | 8 | 8 | 7 | 7 | 32 | 7 | 6 | 6 | 6 | 2 | 29 | 27 | 27 | 29 | 29 | 12 | 43 | 26 |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 7 | NW 8 | NW 8 | NW 7 | NW 9 | NW 8 | NW 8 |
| kJ | 192 | 179 | 184 | 158 | 344 | 167 | 193 | 211 | 217 | 204 | 363 | 392 | 373 | 318 | 156 | 336 | 392 | 382 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 73 | 41 | 54 | 45 | 45 | 107 | 78 | 82 | 49 | 41 | 45 | 41 | 33 | 107 | 108 | 252 | 45 | 45 |
Best forecast wave conditions in Mendocino County | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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