Surf Forecasts:
How big are the waves at Francis Beach today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 2ft (0.6m), 18s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 4.5ft (1.4m), 8s period with NW swell.
- Evening surf: Evening surf (20 Sep, local time) - 2.5ft (0.7m), 18s period with SW swell.
The current surf forecast for Francis Beach at 1PM is: 1.4m 8s primary swell from a Northwest direction and 1.2m 8s secondary swell from a West-northwest direction, 0.6m 18s secondary swell from a Southwest direction (forecast issued at 10:00am September 20). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 2ft (0.6m) | 18s |
| Afternoon (20 Sep) | 4.5ft (1.4m) | 8s |
| Evening (20 Sep) | 2.5ft (0.7m) | 18s |
Table - waves today at Francis Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||
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 |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 18 | NW 8 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 199 | 199 | 236 | 339 | 314 | 304 | 297 | 293 | 287 | 283 | 283 | 283 | 346 | 346 | 346 | 280 | 260 | 251 | 248 | 251 | 251 | 672 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 8:27AM1.26m | 6:17PM1.48m | 8:59AM1.31m | 7:18PM1.53m | 9:25AM1.37m | 8:12PM1.58m | ||||||||||||||||
Low Tide | 1:09PM1.02m | 1:47AM0.18m | 2:00PM0.93m | 2:30AM0.14m | 2:43PM0.82m | |||||||||||||||||
 | | | |  | | | |  | | | |  | | | | |  | | | | | |
 | 6:54 | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 16 | 16 | 16 | 14 | 14 |
Feels °C | 12 | 13 | 15 | 13 | 12 | 13 | 12 | 12 | 13 | 15 | 14 | 14 | 13 | 12 | 12 | 13 | 13 | 15 | 15 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 8 | WNW 7 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 |
| kJ | 157 | 161 | 161 | 157 | 118 | 124 | 153 | 131 | 121 | 125 | 128 | 107 | 74 | 194 | 222 | 239 | 223 | 223 | 223 | 192 | 249 | 672 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | W 13 | WNW 12 | W 12 | SW 16 |
| kJ | 199 | 199 | 203 | 339 | 314 | 304 | 297 | 293 | 287 | 283 | 283 | 283 | 346 | 346 | 346 | 280 | 260 | 251 | 125 | 162 | 146 | 251 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 13 | — | — | SSW 13 | WNW 9 | W 17 | WNW 16 | WNW 15 | WNW 14 | W 14 | SW 16 | SW 16 | SW 16 | S 11 |
| kJ | 15 | 29 | 14 | 14 | 14 | 14 | 15 | 15 | 33 | — | — | 32 | 46 | 6 | 25 | 74 | 70 | 93 | 248 | 251 | 251 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 236 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 39 | 40 | 40 | 55 | 66 | 40 | 57 | 39 | 40 | 126 | 411 | 66 | 55 | 55 | 55 | 14 | 18 | 13 | 40 | 109 | 32 | 40 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||
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