
Surf Forecasts:
Diamond Street surf forecast from 2 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 5AM (local time) - 3.5ft (1.0m), 18s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 7 Jul, 11AM (local time) - 3.5ft (1.1m), 18s period, SW swell with 694 kJ wave energy.
- Next surfable swell (1★+): Saturday 4 Jul, 5AM (local time) - 2.5ft (0.8m), 14s period with SW swell.
Best Forecast Surf Conditions for Diamond Street this week:
The surf forecast for Diamond Street over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 04) at 5AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.5m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Diamond Street in the next 16 days are 1.1m 18s and forecast to arrive on Tuesday (Jul 07) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 4th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 5AM (Wed 8th Jul) | 3.5ft (1.0m) 18s |
| Most Powerful | 11AM (Tue 7th Jul) | 3.5ft (1.1m) 18s |
Table - best surf conditions forecast for Diamond Street over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s be straight with you – this forecast for Diamond Street is a long, tough stretch. We’re looking at a 16-day run starting on July 2nd, and the honest truth is there isn’t a single day that qualifies as a proper standout. The surf quality is poor to marginal for the entire period, so keep the expectations in check.
Right from the start, on Thursday morning July 2nd, we’ve got a small 3ft SW swell, but it’s cross-on wind and the energy is weak (400). The water is running at 68°F, which is a touch warmer than usual for this time of year. That’s about the only positive thing I can say. This grim pattern of small, cross-on junk continues through the first week. The combined swell energy stays in the high hundreds, never breaking into anything meaningful, and those long periods (17-20 seconds) are wasted here as the swell is too small and the wind is never clean. By Tuesday July 7th, the wind finally swings more onshore from the WSW, but we’re still stuck with marginal surf and a tiny 3 to 4ft swell. The wind is light, but those numbers just don’t get the heart pumping.
Into the second week it’s more of the same. July 9th Thursday morning is the best this break will see, a marginal 2/10 day with a 3ft SW swell and a touch of light cross-on. The combined energy sits at 626 – moderate, but nothing to get excited about. From there it’s a long, slow decline. By the time we hit July 15th and 16th, the swell drops to a pathetic 2ft, and the combined energy falls below 300. Even the offshore winds on a few afternoons can’t save this. Honestly, this setup looks more interesting for a kite surfer than a paddle surfer on many of these days, given the strong cross-on winds and lack of any real power.
I know it’s a rough outlook, but when a break is rated as fairly consistent, blank runs like this aren’t the norm. Forecasts can change.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Fri afternoon, min 17°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 17°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 17 | SSW 18 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 20 | SW 20 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
346 | 270 | 176 | 362 | 299 | 211 | 211 | 183 | 159 | 246 | 249 | 459 | 306 | 309 | 388 | 694 | 460 | 375 | 527 | 521 | 527 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | glassy |
High Tide | 12:17PM1.16m | 10:58PM1.75m | 12:52PM1.19m | 11:34PM1.64m | 1:29PM1.24m | 00:14AM1.49m | 2:07PM1.31m | 1:04AM1.30m | 2:50PM1.40m | 2:16AM1.09m | 3:37PM1.51m | 4:01AM0.93m | 4:28PM1.64m | ||||||||
Low Tide | 5:08PM0.74m | 6:34AM-0.10m | 5:51PM0.75m | 7:06AM-0.02m | 6:45PM0.76m | 7:39AM0.09m | 7:54PM0.74m | 8:13AM0.22m | 9:19PM0.66m | 8:52AM0.37m | 10:52PM0.51m | 9:40AM0.52m | 00:14AM0.28m | ||||||||
5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | |
— | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 17 | 18 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 20 | 19 | 20 | 20 | 19 |
Feels °C | 18 | 16 | 16 | 17 | 18 | 17 | 18 | 18 | 17 | 18 | 16 | 17 | 18 | 17 | 19 | 18 | 20 | 19 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SSW 18 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 18 | SW 17 | SW 16 | W 7 | W 7 | SW 18 | WNW 7 | W 7 | SW 16 | SW 16 | SW 16 |
346 | 270 | 176 | 362 | 299 | 211 | 211 | 169 | 153 | 246 | 249 | 459 | 306 | 57 | 70 | 694 | 84 | 94 | 527 | 521 | 527 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | SW 15 | W 5 | W 5 | S 10 | W 5 | SW 19 | SW 19 | SW 18 | SSW 13 | SW 13 | W 6 | W 6 | SW 16 | SW 16 | WNW 7 | SW 18 | SW 18 | W 7 | WNW 7 | W 10 |
32 | 104 | 11 | 12 | 18 | 11 | 183 | 183 | 159 | 116 | 85 | 31 | 38 | 251 | 299 | 82 | 460 | 375 | 112 | 89 | 88 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SSW 11 | S 11 | S 11 | SSW 21 | S 10 | WNW 5 | S 9 | W 4 | WNW 5 | SSW 9 | SW 22 | SW 21 | SW 20 | SW 20 | W 12 | SW 15 | SW 15 | SSW 19 | WNW 11 | S 9 |
22 | 22 | 21 | 20 | 44 | 17 | 7 | 15 | 9 | 7 | 15 | 163 | 162 | 309 | 388 | 11 | 174 | 171 | 210 | 23 | 2 | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | W 5 | — | — | WNW 3 | — | — | W 5 | — | — | — | — | — | — | — | — | — | — |
— | 16 | — | — | 14 | — | — | 4 | — | — | 20 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 15 | 14 | 348 | 15 | 14 | 15 | 14 | 7 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 0 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Diamond Street Surf forecast
The above surf forecast table for Diamond Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Diamond Street can be found by selecting the local surf guide option on the grey menu. Our Diamond Street surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Diamond Street) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Diamond Street may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Diamond Street is 9 km (6 miles) from San Diego. If you plan a vacation in San Diego County, look for hotels and other accommodation in San Diego. San Diego has rooms for a wide range of budgets as well as car hire and transport links.










