Surf Forecasts:
How big are the waves at Diamond Street today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3ft (0.9m), 17s period with SW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3.5ft (1.0m), 17s period with SW swell.
- Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 16s period with SW swell.
The current surf forecast for Diamond Street at 1AM is: 0.9m 17s primary swell from a Southwest direction and 0.4m 6s secondary swell from a West direction (forecast issued at 04:00pm September 20). The wind direction is predicted to be cross-onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3ft (0.9m) | 17s |
| Afternoon (21 Sep) | 3.5ft (1.0m) | 17s |
| Evening (21 Sep) | 3ft (0.9m) | 16s |
Table - waves today at Diamond Street. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 21°C on Sun afternoon, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||
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 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 455 | 516 | 444 | 434 | 429 | 487 | 476 | 470 | 547 | 540 | 534 | 443 | 437 | 427 | 416 | 416 | 416 | 416 | 416 | 416 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:46PM1.46m | 7:56AM1.25m | 6:35PM1.57m | 8:07AM1.33m | 7:15PM1.67m | |||||||||||||||
Low Tide | 12:20PM0.98m | 1:26AM0.16m | 1:04PM0.84m | 1:55AM0.09m | 1:38PM0.68m | |||||||||||||||
 | |  |  |  | |  |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — |
 | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 20 | 20 | 20 |
Feels °C | 20 | 21 | 20 | 20 | 21 | 21 | 21 | 20 | 18 | 19 | 20 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 455 | 516 | 444 | 434 | 429 | 487 | 476 | 470 | 547 | 540 | 534 | 443 | 437 | 427 | 416 | 416 | 416 | 416 | 416 | 416 |
Swell 2 Height (m) Direction Period (s) | W 6 | SSW 12 | W 6 | W 6 | W 6 | W 5 | SSW 12 | SW 12 | SW 12 | SSW 12 | W 6 | W 5 | W 5 | W 5 | W 5 | W 6 | SSW 11 | W 6 | W 6 | W 5 |
| kJ | 20 | 57 | 17 | 16 | 9 | 8 | 58 | 36 | 36 | 55 | 9 | 14 | 20 | 20 | 21 | 24 | 24 | 23 | 16 | 14 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SW 12 | W 5 | W 5 | W 5 | SW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | — | SSW 11 | SSW 11 | SSW 11 |
| kJ | 57 | 6 | 58 | 58 | 58 | 38 | 8 | 8 | 4 | 5 | 52 | 53 | 52 | 51 | 24 | 24 | — | 23 | 23 | 23 |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | — | — | — | — | WNW 6 | W 5 | W 6 | — | — | — | — | — | W 6 | — | — | — |
| kJ | — | 18 | — | — | — | — | — | — | 13 | 9 | 17 | — | — | — | — | — | 24 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 154 | 15 | 15 | 6 | 0 | 0 | 0 | 14 | 15 | 14 | 14 | 6 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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