Surf Forecasts:
How big are the waves at Francis Beach today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2.5ft (0.7m), 16s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2ft (0.6m), 16s period with SSW swell.
The current surf forecast for Francis Beach at 9AM is: 0.6m 15s primary swell from a Southwest direction and 0.5m 6s secondary swell from a West-northwest direction (forecast issued at 04:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 15s |
| Afternoon (18 Aug) | 2.5ft (0.7m) | 16s |
| Evening (18 Aug) | 2ft (0.6m) | 16s |
Table - waves today at Francis Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 15 | SW 15 | SW 16 | SW 16 | SSW 16 | SSW 16 | WNW 7 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | WNW 7 | WNW 7 | WNW 7 | W 12 | WNW 7 | WNW 7 | WNW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 169 | 169 | 171 | 176 | 255 | 125 | 173 | 173 | 104 | 153 | 167 | 217 | 220 | 226 | 191 | 158 | 152 | 157 | 169 | 124 | 99 | 113 | 110 | 113 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:28AM1.19m | 3:17PM1.65m | 4:57AM1.08m | 4:01PM1.62m | 6:46AM1.07m | 4:53PM1.59m | ||||||||||||||||||
Low Tide | 8:56AM0.67m | 10:24PM0.32m | 9:46AM0.85m | 11:32PM0.29m | 10:54AM0.99m | |||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | | |  | | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:58 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | — | 7:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 13 | 15 | 17 | 16 | 13 | 13 | 13 | 13 | 13 | 17 | 17 | 16 | 13 | 13 | 13 | 12 | 13 | 16 | 17 | 16 | 14 | 13 |
Feels °C | 11 | 11 | 12 | 13 | 15 | 14 | 11 | 12 | 12 | 13 | 13 | 16 | 15 | 14 | 11 | 11 | 11 | 10 | 11 | 14 | 15 | 13 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 15 | SW 15 | SW 16 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | W 12 | W 12 | WNW 7 | WNW 7 |
| kJ | 169 | 169 | 171 | 176 | 255 | 35 | 50 | 104 | 99 | 99 | 104 | 104 | 104 | 104 | 107 | 101 | 127 | 157 | 169 | 124 | 99 | 98 | 110 | 113 |
Swell 2 Height (m) Direction Period (s) | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | SW 16 | SSW 16 | SSW 16 | SW 13 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | W 11 | W 11 | W 12 | SW 14 | SW 14 | W 11 | W 11 |
| kJ | 23 | 34 | 21 | 22 | 34 | 125 | 173 | 173 | 87 | 153 | 167 | 217 | 220 | 226 | 191 | 158 | 152 | 121 | 121 | 98 | 99 | 102 | 88 | 85 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | SW 13 | WNW 8 | SW 13 | SSW 16 | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | SSW 14 | SSW 14 | SW 14 | WSW 19 | SW 19 | SW 14 | SW 14 |
| kJ | 26 | 25 | 24 | 22 | 22 | 44 | 25 | 42 | 104 | 33 | 56 | 54 | 75 | 74 | 76 | 70 | 91 | 134 | 129 | 96 | 36 | 15 | 102 | 102 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WNW 6 | WNW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 7 | WNW 7 | — | — |
| kJ | — | — | — | — | — | 29 | 114 | — | — | — | — | — | — | — | — | — | — | — | — | — | 99 | 113 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 32 | 32 | 78 | 69 | 66 | 66 | 32 | 32 | 32 | 40 | 40 | 40 | 66 | 65 | 39 | 39 | 40 | 40 | 40 | 40 | 66 | 40 | 39 |
Best forecast wave conditions in San Mateo | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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