
Surf Forecasts:
Oceanside Harbor surf forecast from 7 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with 438 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 11PM (local time) - 1.5ft (0.4m), 18s period with SW swell.
Best Forecast Surf Conditions for Oceanside Harbor this week:
The surf forecast for Oceanside Harbor over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 11PM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.4m and 18s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Oceanside Harbor in the next 16 days are 0.9m 18s and forecast to arrive on Saturday (Aug 08) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 6th Aug) | 1.5ft (0.4m) 18s |
| Best Surf | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright, let’s get this straight. I’ve been staring at the charts for the next couple of weeks, and honestly, it’s a bit of a slow grind out there. The swell is coming in, but it’s small and pretty junky. We’ve got a lot of days where the waves are just not lining up, with onshore winds messing up the surface. It’s going to be a test of patience more than anything.
The first few days are pretty much a washout. Thursday the 6th and into the weekend, we’re looking at tiny, weak surf. The swell is around 2ft, with a period of 13 to 17 seconds. The energy is there, but it’s just not translating to the beach. The wind is cross-onshore, which is chopping everything up. It’s not worth paddling out for.
There’s a slight bump in energy around Monday the 10th, but the swell height is still only about 3ft. The wind is a bit better, but it’s still not clean. We’re stuck in this pattern of small, short-period swell and light onshore breezes. It’s all pretty mushy.
The real problem is that the swell is just too weak to do anything. The combined energy values are mostly in the 200 to 400 range, which is moderate at best, and the waves are just not holding up. It’s the kind of surf that has you checking your watch after ten minutes.
Looking further out, there’s a small window around Friday the 14th where things might get slightly more interesting. The swell picks up a touch to 3ft, but more importantly, the period is up to 18 seconds. That’s a longer-period groundswell, which means more push and better shape. The energy also jumps up to 546 and 756, which is a solid step up. But the wind is still cross-onshore, so it’s going to be a bit lumpy. It’s marginal at best.
The weekend of the 15th and 16th sees the swell push a little higher, with the afternoon of the 15th hitting 4ft. But the period drops back to 16 seconds, and the wind is still not our friend. It’s still going to be a messy, onshore mess.
The water temp is a big story here. At Oceanside Harbor (California), it’s sitting at 76°F, which is a whopping 9°F warmer than normal for this time of year. That’s not just a little warm, that’s a full-blown marine heatwave. The water’s going to feel like a bath, which is nice for the body, but the surf is what we’re after.
So, what’s the best on offer? Honestly, it’s all pretty average. The standout, if you can call it that, is Friday the 14th. The longer period and higher energy make it the most promising day in the whole window. It’s still not going to be epic, but it’s the best chance for a wave with a bit of push. The break is a beach/jetty setup, so the long-period swell might not be perfect, but it’s the best we’ve got.
After that, it’s more of the same. The swell stays small, the wind stays onshore, and the surf stays poor. The second week is just more of the same grind, with no real improvement. It’s a long stretch of small, messy waves.
So, there you have it. It’s not a great forecast, but it’s not a total blank either. There’s always something to find if you’re keen, but you’re going to have to work for it. The longer period swells are the key, so keep an eye on the 14th. Otherwise, it might be a good time to get the fishing rod out.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Fri afternoon, min 20°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 22°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | SSW 13 | SSW 18 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 20 | SW 19 | SSW 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
114 | 126 | 329 | 243 | 348 | 344 | 295 | 362 | 309 | 305 | 301 | 207 | 186 | 184 | 131 | 252 | 316 | 195 | 264 | 306 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | on | on | glassy | on | on | glassy | on | cross-on | glassy |
High Tide | 3:37PM2.01m | 6:47AM1.26m | 4:52PM2.11m | 7:50AM1.38m | 6:02PM2.23m | 8:30AM1.50m | 7:02PM2.36m | 9:05AM1.60m | 7:56PM2.46m | 9:39AM1.70m | 8:45PM2.49m | 10:13AM1.79m | 9:31PM2.43m | |||||||
Low Tide | 11:46PM0.55m | 9:34AM1.20m | 00:52AM0.34m | 11:21AM1.22m | 1:44AM0.15m | 12:40PM1.15m | 2:29AM0.02m | 1:40PM1.04m | 3:10AM-0.06m | 2:33PM0.92m | 3:49AM-0.05m | 3:23PM0.82m | 4:24AM0.03m | |||||||
— | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | |
7:44 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 23 | 24 | 22 | 24 | 24 | 23 | 24 | 25 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 22 |
Feels °C | 23 | 23 | 23 | 24 | 23 | 24 | 23 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SW 13 | SSW 19 | SSW 13 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 18 | SW 18 | SSW 17 | SW 16 | SW 16 |
114 | 84 | 329 | 111 | 348 | 344 | 295 | 362 | 309 | 305 | 301 | 207 | 139 | 137 | 131 | 252 | 316 | 195 | 264 | 306 | |
Swell 2 Height (m) Direction Period (s) | SSW 20 | SSW 18 | SSW 13 | SSW 19 | SW 12 | SW 12 | W 12 | SSW 12 | W 4 | SW 11 | SW 11 | SW 20 | SW 20 | SW 19 | SW 15 | S 12 | SSW 12 | SW 13 | SW 13 | S 12 |
79 | 126 | 114 | 243 | 124 | 89 | 11 | 83 | 4 | 30 | 42 | 106 | 186 | 184 | 75 | 73 | 55 | 61 | 61 | 44 | |
Swell 3 Height (m) Direction Period (s) | W 13 | W 4 | W 12 | W 12 | W 15 | W 14 | S 13 | W 4 | W 13 | SW 21 | SW 21 | SSW 11 | SW 16 | SW 14 | SW 18 | SW 14 | SW 13 | SSW 12 | SSW 12 | SSW 9 |
3 | 3 | 3 | 3 | 4 | 4 | 3 | 9 | 13 | 72 | 71 | 12 | 39 | 33 | 51 | 103 | 44 | 45 | 49 | 17 | |
Wind waves Height (m) Direction Period (s) | W 5 | — | W 4 | W 4 | — | W 4 | SW 12 | — | — | W 5 | — | — | — | — | — | — | — | W 5 | W 6 | — |
7 | — | 3 | 4 | — | 3 | 114 | — | — | 4 | — | — | — | — | — | — | — | 2 | 3 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 116 | 0 | 108 | 68 | 0 | 46 | 68 | 0 | 108 | 68 | 0 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Oceanside Harbor Surf forecast
The above surf forecast table for Oceanside Harbor provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Oceanside Harbor can be found by selecting the local surf guide option on the grey menu. Our Oceanside Harbor 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 (Oceanside Harbor) 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 Oceanside Harbor 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.
Oceanside Harbor is 8 km (5 miles) from the city of Oceanside. If you plan a vacation in San Diego County, look for hotels and other accommodation in Oceanside. Oceanside has rooms for a wide range of budgets as well as car hire and transport links.











