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Diamond Street Surf Forecast
/ CAL – San Diego County (71 breaks) / California (404 breaks) /
Surf Forecasts:
Diamond Street surfForecast / CAL – San Diego County / USA
48hr Weather and Surf, issued 4 am Tuesday 21 Apr 2026 PDTForecast update in hr min s Forecast update imminent
Diamond Street surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diamond Street sea temperature is
18.5° C
(Which is 2.8°C warmer than normal for this time of year)How big are the waves at Diamond Street today?
The current surf forecast for Diamond Street at 11AM is: 0.5m 12s primary swell from a Southwest direction and 0.3m 14s secondary swell from a South-southwest direction (forecast issued at 04:00am April 21). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 1.5ft (0.5m) | 12s |
| Afternoon (21 Apr) | 1.5ft (0.5m) | 12s |
| Evening (21 Apr) | 1.5ft (0.4m) | 19s |
Table - waves today at Diamond Street. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 15 | 19 | 19 | 19 | 18 | 12 | 18 | 18 | 18 | 11 | 16 | 16 | 16 | 16 | 16 | 16 | 8 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 93 | 122 | 95 | 72 | 73 | 148 | 148 | 120 | 107 | 178 | 273 | 273 | 243 | 229 | 149 | 203 | 201 | 266 | 266 | 263 | 186 | 172 | 169 | 167 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | glass | glass | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | glass | cross- off | cross- on | on | cross- on | cross- on | cross- on |
High Tide / height (m) | 11:43PM 1.85 | 2:15PM 0.94 | 12:41AM 1.69 | 4:09PM 0.97 | 1:59AM 1.53 | 5:33PM 1.09 | ||||||||||||||||||
Low Tide / height (m) | 7:39AM -0.23 | 6:21PM 0.76 | 8:56AM -0.14 | 7:52PM 0.87 | 10:18AM -0.09 | 10:04PM 0.86 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
| Sunrise | - | - | 6:11 | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:23 | - | - |
 | |  | | | | | | |  |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 16 | 17 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 17 | 17 | 18 | 17 | 17 |
| Feels °C (?) | 16 | 16 | 16 | 15 | 15 | 16 | 15 | 14 | 15 | 15 | 14 | 14 | 11 | 12 | 13 | 14 | 14 | 14 | 13 | 15 | 15 | 15 | 15 | 17 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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