Surf Forecasts:
How big are the waves at Dillon Beach today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.8m), 11s period with WNW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4ft (1.2m), 11s period with WNW swell.
- Evening surf: Evening surf (21 Aug, local time) - 4.5ft (1.3m), 5s period with WNW swell.
The current surf forecast for Dillon Beach at 6AM is: 0.7m 14s primary swell from a South-southwest direction and 0.8m 11s secondary swell from a West-northwest direction, 0.9m 5s secondary swell from a Northwest direction (forecast issued at 10:00pm August 20). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 2.5ft (0.8m) | 11s |
| Afternoon (21 Aug) | 4ft (1.2m) | 11s |
| Evening (21 Aug) | 4.5ft (1.3m) | 5s |
Table - waves today at Dillon Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 12°C on Thu night). Winds decreasing (fresh winds from the WNW on Sat afternoon, calm by Sun morning). | ||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | ||||||||||||||||
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) | WNW 11 | SW 14 | SW 14 | SSW 14 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 5 | WNW 5 | SSW 13 | SSW 13 | SW 13 | WNW 10 | WNW 5 | WNW 6 | NW 6 | NW 6 |
Wave Graph  | ||||||||||||||||||
 kJ | 208 | 211 | 211 | 180 | 134 | 130 | 322 | 339 | 99 | 80 | 116 | 116 | 85 | 204 | 133 | 289 | 301 | 171 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | glassy | glassy | on | on | cross-on | cross-on | cross-on |
High Tide | 5:43PM1.47m | 9:03AM1.10m | 6:43PM1.47m | 9:57AM1.16m | 7:43PM1.49m | |||||||||||||
Low Tide | 1:50AM0.23m | 1:26PM0.98m | 2:50AM0.17m | 2:34PM0.97m | ||||||||||||||
 | | | |  | |  |  |  | | | | | | | | | | |
 | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | — | 7:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 13 | 13 | 13 | 13 | 16 | 14 | 14 | 13 | 13 | 13 | 12 | 13 | 18 | 18 | 19 | 18 | 15 |
Feels °C | 9 | 11 | 12 | 12 | 12 | 13 | 10 | 10 | 10 | 11 | 12 | 11 | 12 | 15 | 13 | 13 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | WNW 10 | WNW 10 | WNW 10 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
| kJ | 173 | 135 | 133 | 133 | 130 | 130 | 118 | 116 | 99 | 68 | 80 | 78 | 77 | 68 | 67 | 67 | 65 | 60 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 13 | SSW 13 | SW 13 | SW 18 | SW 17 | SW 17 | SW 17 | SW 19 |
| kJ | 208 | 211 | 211 | 180 | 134 | 123 | 79 | 79 | 48 | 48 | 116 | 116 | 85 | 50 | 75 | 100 | 98 | 89 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SW 19 | SW 19 | SW 19 | WSW 19 | SW 18 | S 10 | S 10 | W 13 | WNW 13 | SW 18 | WSW 18 | SW 18 | SSW 16 | S 10 | S 10 | S 10 | SSW 16 |
| kJ | 15 | 15 | 15 | 15 | 36 | 51 | 2 | 2 | 14 | 17 | 48 | 31 | 49 | 27 | 8 | 8 | 8 | 25 |
Wind waves Height (m) Direction Period (s) | WNW 5 | NW 5 | NW 5 | NW 5 | NW 4 | WNW 4 | WNW 11 | WNW 10 | WNW 5 | WNW 5 | NW 5 | NW 4 | NW 4 | WNW 10 | WNW 5 | WNW 6 | NW 6 | NW 6 |
| kJ | 46 | 51 | 47 | 32 | 20 | 21 | 322 | 339 | 68 | 80 | 31 | 17 | 16 | 204 | 133 | 289 | 301 | 171 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 138 | 9 | 9 | 9 | 9 | 65 | 168 | 168 | 138 | 9 | 9 | 0 | 0 | 45 | 166 | 166 | 65 | 138 |
Best forecast wave conditions in Marin County | ||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||
Header Global | ||||||||||||||||||
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