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Francis Beach Surf Forecast
/ CAL – San Mateo (15 breaks) / California (404 breaks) /
Surf Forecasts:
Francis Beach surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 4 am Monday 18 May 2026 PDTForecast update in hr min s Forecast update imminent
Francis Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Francis Beach sea temperature is
12.7° C
(Which is slightly warmer than usual)How big are the waves at Francis Beach today?
The current surf forecast for Francis Beach at 8AM is: 1.8m 10s primary swell from a West-northwest direction and 0.2m 13s secondary swell from a South-southwest direction (forecast issued at 04:00am May 18). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5.5ft (1.7m) | 10s |
| Afternoon (18 May) | 6ft (1.9m) | 10s |
| Evening (18 May) | 6ft (1.9m) | 9s |
Table - waves today at Francis Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Mon morning, min 9°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | |
1985 | 1415 | 653 | 510 | 741 | 298 | 575 | 643 | 611 | 563 | 482 | 428 | 394 | 661 | 325 | 280 | 370 | 419 | 428 | 437 | 500 | 312 | 325 | 676 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | |
High Tide | 11:16PM1.96m | 1:45PM1.33m | 00:06AM1.92m | 2:42PM1.33m | 00:59AM1.83m | 3:40PM1.35m | ||||||||||||||||||
Low Tide | 6:32AM-0.61m | 6:14PM0.85m | 7:25AM-0.57m | 7:14PM0.89m | 8:20AM-0.47m | 8:24PM0.90m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | |  | |  | | | | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:15 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 18 | 17 | 18 | 21 | 20 | 16 | 12 | 11 | 11 | 12 | 16 | 20 | 21 | 17 | 12 | 11 | 11 | 10 | 11 | 14 | 15 | 13 | 10 | 10 |
9 | 8 | 11 | 14 | 13 | 10 | 8 | 9 | 9 | 11 | 15 | 17 | 16 | 13 | 9 | 9 | 10 | 9 | 10 | 13 | 13 | 11 | 7 | 8 | |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
 kJ | 1192 | 882 | 653 | 510 | 435 | 298 | 575 | 643 | 611 | 563 | 482 | 428 | 394 | 410 | 325 | 269 | 370 | 419 | 428 | 437 | 500 | 312 | 325 | 676 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 13 | SSW 13 | SW 16 | SW 16 | SW 16 | W 18 | WNW 17 | W 16 | W 16 | W 16 | W 15 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | SW 16 | W 12 | W 12 | SW 15 |
| kJ | 44 | 17 | 17 | 42 | 41 | 42 | 55 | 96 | 132 | 186 | 239 | 212 | 268 | 333 | 320 | 280 | 268 | 209 | 209 | 87 | 40 | 171 | 171 | 80 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 17 | SSW 13 | SSW 13 | W 18 | WSW 17 | WSW 16 | SW 16 | SSW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 21 | SW 21 | SW 21 | SSW 13 | SW 16 | SW 15 | SSW 13 |
| kJ | 31 | 30 | 28 | 17 | 16 | 25 | 29 | 27 | 66 | 22 | 59 | 42 | 43 | 64 | 42 | 42 | 42 | 72 | 162 | 72 | 18 | 87 | 84 | 18 |
Wind waves Height (m) Direction Period (s) | WNW 11 | WNW 10 | NNE 3 | — | WNW 10 | WNW 6 | — | — | — | — | — | — | — | WNW 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1985 | 1415 | 2 | — | 741 | 68 | — | — | — | — | — | — | — | 661 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 66 | 65 | 55 | 55 | 66 | 66 | 66 | 32 | 21 | 0 | 0 | 7 | 55 | 66 | 57 | 32 | 14 | 0 | 14 | 13 | 78 | 102 | 40 | 32 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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