Surf Forecasts:
Oceanside Harbor surf forecast from 22 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 11PM (local time) - 4.5ft (1.4m), 13s period, S swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 5PM (local time) - 5.5ft (1.7m), 15s period, S swell with 1,246 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 8AM (local time) - 2ft (0.6m), 13s period with SSW 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 Saturday (Aug 22) at 8AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.5m and 6s. 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 1.7m 15s and forecast to arrive on Wednesday (Aug 26) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 22nd Aug) | 2ft (0.6m) 13s |
| Best Surf | 11PM (Wed 26th Aug) | 4.5ft (1.4m) 13s |
| Most Powerful | 5PM (Wed 26th Aug) | 5.5ft (1.7m) 15s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
Right off the bat, I gotta be straight with you – the first few days are a bit of a write-off. We’ve got waves, but they’re small, messy, and the wind is just mucking things up. From Saturday the 22nd through Monday the 24th, we’re looking at 2ft to 2ft swell from the SSW or SW, but it’s mostly cross-on or onshore. The wind is light, but it’s just enough to ruin the surface. It’s a proper struggle. The water temp is about average for this time of year, nothing unusual.
We do start to see a little pulse of energy coming in around Tuesday the 25th, but it’s still very marginal. The swell bumps up a touch to 2ft, and the combined energy sits at 407 – that’s moderate energy, but the wind is still a cross-on mess. Not worth paddling out for.
Now, here’s where it gets a little more interesting. Wednesday the 26th sees a bit of a jump. The swell picks up to 3ft in the morning from the S, with moderate energy (710). By the afternoon, it’s hitting 6ft from the S, with strong energy (1310). That’s a proper spike, but the wind is a cross-on 15 km/h (9 mph), making it a bit choppy at the beach. We’re still in “marginal” territory, but it’s the first real sign of life.
The standouts, if you can call them that, are shaping up for the very end of the run. Saturday the 5th of September has a morning session with 4ft from the SSW on a 16-second period. That’s a long-period groundswell, and the combined energy is a solid 1267. The wind is light and onshore, but that’s a glassy, clean look in the morning. That’s your best bet right there. Then Sunday the 6th of September, we’ve got 5ft from the S on a 15-second period, with really strong energy at 1355. The wind is light and onshore again. That’s a touch bigger, so it’s getting into more advanced territory, but the conditions could be clean.
For the whole run, we’re looking at Oceanside Harbor (beach/jetty setup). It’s very consistent here, but it’s exposed to the W swell, and most of this swell is from the SSW or S. That’s not its ideal direction. The crowds are often there, so be ready for company. Because of the long-period groundswell, this spot is a beach/jetty, so those long-period waves can break a bit straight. It’s not the best setup for that kind of groundswell, but with light wind, it’s still rideable.
So, the honest truth? The first week is a dud. You’re waiting until the very end of the forecast, specifically the mornings of the 5th and 6th of September, for the best chance. Those are the standouts, promising but a bit far out so keep an eye on it. The rest is just a tease.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 22°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 | SW 18 | SSW 15 | SSW 14 | SW 19 | SW 18 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 12 | S 15 | S 15 | S 13 | SSW 12 | S 12 | SSW 18 |
Wave Graph | |||||||||||||||||||
98 | 92 | 167 | 218 | 177 | 155 | 273 | 252 | 179 | 273 | 264 | 208 | 203 | 428 | 1246 | 905 | 619 | 341 | 204 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | glassy |
High Tide | 8:27AM1.43m | 6:08PM1.91m | 8:41AM1.49m | 6:56PM2.01m | 8:58AM1.55m | 7:35PM2.10m | 9:16AM1.61m | 8:10PM2.17m | 9:35AM1.68m | 8:44PM2.20m | 9:55AM1.75m | 9:18PM2.17m | |||||||
Low Tide | 1:10AM0.54m | 11:57AM1.32m | 1:47AM0.43m | 12:51PM1.24m | 2:18AM0.34m | 1:31PM1.14m | 2:46AM0.27m | 2:06PM1.04m | 3:12AM0.24m | 2:40PM0.94m | 3:36AM0.24m | 3:15PM0.84m | 4:00AM0.29m | ||||||
— | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | |
— | — | 7:27 | — | — | 7:25 | — | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 25 | 25 | 24 | 26 | 27 | 24 | 26 | 25 | 24 | 26 | 26 | 24 | 25 | 25 | 23 | 25 | 25 | 24 |
Feels °C | 25 | 26 | 25 | 26 | 26 | 26 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | S 12 | S 15 | S 15 | S 13 | SSW 12 | S 12 | SSW 11 |
98 | 92 | 167 | 218 | 99 | 98 | 273 | 252 | 179 | 273 | 264 | 208 | 196 | 428 | 1246 | 905 | 619 | 341 | 194 | |
Swell 2 Height (m) Direction Period (s) | W 5 | W 6 | W 6 | W 5 | W 6 | SW 18 | SW 18 | W 6 | SSW 12 | S 13 | S 13 | S 13 | W 6 | S 12 | W 7 | W 8 | W 7 | SW 14 | SW 14 |
9 | 19 | 17 | 9 | 18 | 155 | 199 | 16 | 85 | 126 | 125 | 125 | 48 | 214 | 48 | 57 | 64 | 214 | 189 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SSW 12 | SW 19 | SW 19 | SSW 16 | W 5 | SSW 12 | S 14 | W 5 | W 6 | SSE 12 | SW 16 | W 7 | W 14 | SW 15 | SSW 19 | W 6 | SSW 18 |
49 | 81 | 56 | 58 | 177 | 84 | 11 | 89 | 66 | 14 | 18 | 30 | 203 | 68 | 16 | 75 | 142 | 29 | 204 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | — | — | — | — | — |
— | — | — | — | — | 16 | — | — | 16 | — | — | 19 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 181 | 46 | 0 | 55 | 68 | 98 | 46 | 46 | 46 | 46 | 98 | 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.











