Surf Forecasts:
Oceanside Harbor surf forecast from 27 Aug 2026:
- Best quality surf: Saturday 29 Aug, 5AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 29 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 932 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 8AM (local time) - 4ft (1.2m), 12s period with S 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 27) at 8AM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.6m and 15s. 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 1.3m 17s and forecast to arrive on Saturday (Aug 29) at 2AM. 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+) | 8AM (Thu 27th Aug) | 4ft (1.2m) 12s |
| Best Surf | 5AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
| Most Powerful | 2AM (Sat 29th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright, grab your board and let’s talk about it. It’s gonna be a bit of a mixed bag for the Harbor over this stretch.
The next few days are looking pretty ordinary. We’ve got some small, weak swell pushing in, and it’s not going to offer up much in the way of quality. The wave energy is pretty low, with readings under 800, so don’t expect much push. There’s a bit of a lull here, with conditions staying marginal. You’ll see some waves in the ankle to knee-high range (that’s about `0.3m` to `1m`), and the wind isn't helping onshore or cross-onshore. It’s a real wait-and-see deal, and I’d probably find something else to do rather than paddle out for these sloppy little numbers.
Now, looking further ahead, things start to get a little more interesting. The first real standout looks like the first week of September. We’ve got a nice window of cleaner conditions. The wind will be light or glassy, which is a huge plus. We’ll see the swell bump up to around `3.5ft` to `4ft`. The energy is still moderate, but the clean surface will make a world of difference. It’s not going to be a big day, but it could be a fun one with some shape. As we get further into the week, the swell might push a little higher, but the conditions look like they’ll get messier with the wind turning cross-onshore again.
The real gem in this forecast is Thursday, the 3rd of September. The swell is going to kick up significantly, with a solid `6.9ft` of south-southwest swell. The energy readings jump up to strong values around 1500, which is the peak of the window. However, it’s not going to be perfect. The wind will be light cross-onshore, which might put a little texture on it. Because it's a beach and jetty setup, this bigger, longer-period swell might be a bit tricky and close out in sections. This will be a peak for the more experienced surfers; beginners would be out of their depth at this size.
After that, it backs down again. The second week is more of a waiting game, with a few smaller pulses but nothing to get too excited about. The conditions look a little more onshore and choppy, so we'll just have to be patient. There’s a promising blip again on the 6th with some glassy conditions and a knee to waist-high swell, but that's about as good as it gets. The late summer doldrums are here, so make the most of those few cleaner moments.
Keep it salty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Tue afternoon. Warm (max 24°C on Sun morning, min 18°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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) | S 11 | S 12 | S 11 | SSW 18 | SSW 17 | SSW 19 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 12 | S 12 | S 11 | S 12 | S 11 |
Wave Graph | |||||||||||||||||||
272 | 333 | 231 | 270 | 351 | 325 | 932 | 594 | 733 | 706 | 537 | 405 | 325 | 261 | 300 | 282 | 311 | 376 | 319 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | on | cross-on | glassy | glassy | glassy | cross-off |
High Tide | 8:44PM2.20m | 9:55AM1.75m | 9:18PM2.17m | 10:17AM1.83m | 9:53PM2.09m | 10:39AM1.90m | 10:30PM1.96m | 11:04AM1.97m | 11:10PM1.79m | 11:32AM2.02m | 11:57PM1.60m | 12:06PM2.03m | 00:58AM1.39m | ||||||
Low Tide | 3:36AM0.24m | 3:15PM0.84m | 4:00AM0.29m | 3:51PM0.76m | 4:23AM0.38m | 4:31PM0.69m | 4:46AM0.49m | 5:13PM0.65m | 5:10AM0.64m | 6:02PM0.64m | 5:34AM0.79m | 7:03PM0.65m | |||||||
— | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | — | 7:21 | — | — | 7:20 | — | — | 7:19 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 9 | — |
Temp °C | 25 | 26 | 27 | 26 | 27 | 27 | 25 | 26 | 26 | 23 | 24 | 24 | 22 | 24 | 24 | 23 | 22 | 19 | 21 |
Feels °C | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 23 | 23 | 24 | 23 | 24 | 21 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 12 | S 11 | S 10 | SSW 17 | S 9 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 12 | S 12 | S 11 | S 12 | S 11 |
272 | 333 | 231 | 154 | 351 | 54 | 932 | 594 | 733 | 706 | 537 | 405 | 325 | 261 | 300 | 282 | 311 | 376 | 319 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SSW 18 | S 9 | SW 14 | W 6 | W 7 | W 7 | W 8 | W 7 | W 7 | W 7 | S 13 | SSW 13 | SSW 13 | SW 13 | WNW 5 | SW 18 |
171 | 169 | 132 | 270 | 79 | 147 | 29 | 66 | 50 | 141 | 108 | 60 | 80 | 212 | 158 | 118 | 44 | 17 | 111 | |
Swell 3 Height (m) Direction Period (s) | W 6 | W 12 | W 12 | SW 14 | W 9 | SSW 19 | S 8 | S 8 | W 9 | S 8 | SSE 13 | SSE 12 | S 12 | W 7 | SSW 19 | W 5 | SW 18 | SW 18 | W 4 |
7 | 72 | 71 | 116 | 83 | 325 | 33 | 20 | 16 | 11 | 35 | 52 | 77 | 43 | 35 | 13 | 50 | 49 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — | W 5 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 27 | — | 14 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 34 | 46 | 116 | 0 | 68 | 68 | 0 | 256 | 163 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 0 | 0 | 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.











