Surf Forecasts:
Oceanside Harbor surf forecast from 1 Sep 2026:
- Best quality surf: Saturday 5 Sep, 11PM (local time) - 4.5ft (1.4m), 14s period, S swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 8PM (local time) - 6ft (1.9m), 14s period, S swell with 1,383 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 5AM (local time) - 2.5ft (0.7m), 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 Tuesday (Sep 01) at 5AM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.7m and 11s. 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 1.9m 14s and forecast to arrive on Sunday (Sep 06) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 14s period and expected on Saturday (Sep 05) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 1st Sep) | 2.5ft (0.7m) 13s |
| Best Surf | 11PM (Sat 5th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 8PM (Sun 6th Sep) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a hard look at what’s cooking for Oceanside Harbor over the next couple of weeks.
Right now, it’s a pretty bleak start. We’ve got a long stretch of nothing much to get excited about. From Monday the 31st of August, right through to Saturday the 6th of September, it’s mostly a write-off. The swell is tiny, the wind is messy, and the ocean just looks ordinary. That’s nearly a full week of poor to marginal conditions with bumpy, cross-onshore slop. There’s no point pretending otherwise.
The first real glimmer of hope arrives on Sunday the 6th of September. The afternoon session is a genuine standout. The wind goes glassy, dead calm, and we’ve got a solid 6ft of south swell wrapping in with a period of 14 seconds. The combined wave energy is strong at 1265, so there’s proper power behind it. This is one for experienced surfers only, because that size with that period will push through fast. The Harbour mouth and jetty (Oceanside Harbor) should be handling this really well. The water temp is sitting at 78°, which is over 9 degrees warmer than average for this time of year – that’s freakishly warm, so you can leave the steamer at home.
Monday the 7th of September still has some decent size, with 7ft of south swell in the morning, but the wind turns cross-onshore, knocking the quality down. It’s still surfable for those who don’t mind a bit of texture. By Tuesday the 8th, the wind cranks up and the swell starts to fade, so that Sunday arvo is really the golden window.
After that, from Tuesday the 8th onwards, we slide back into a long, flat, and choppy run. The swell drops below 3ft, the wind stays onshore or cross-onshore, and the wave energy tanks down to weak three-digit numbers. This second week is a total dud for paddle surfing. The setup from the 9th through the 15th of September is more interesting for a kite surfer than anyone with a shortboard – consistent cross-onshore wind and messy little waves.
So to wrap it up: the one and only true standout is Sunday afternoon, the 6th of September. Get on it if you can handle a bit of size and power. The rest of the outlook is a waiting game.
Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Tue morning, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 28°C on Sun afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 13 | SSW 13 | SSW 13 | SW 16 | SSW 16 | SW 17 | SSW 11 | SW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 14 | S 14 | S 14 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 156 | 116 | 114 | 93 | 132 | 175 | 291 | 143 | 460 | 547 | 594 | 667 | 620 | 512 | 512 | 844 | 1172 | 1207 | 1283 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross-off | cross-off | cross-off | off |
High Tide | 11:57PM1.60m | 12:06PM2.03m | 00:58AM1.39m | 12:48PM2.03m | 2:40AM1.23m | 1:48PM2.00m | 6:05AM1.25m | 3:13PM1.98m | 7:12AM1.38m | 4:46PM2.04m | 7:41AM1.51m | 6:01PM2.14m | |||||||
Low Tide | 5:34AM0.79m | 7:03PM0.65m | 5:58AM0.95m | 8:23PM0.65m | 6:24AM1.10m | 10:07PM0.59m | 7:01AM1.25m | 11:37PM0.45m | 10:01AM1.32m | 00:40AM0.30m | 11:49AM1.23m | 1:27AM0.18m | |||||||
 |  | | | | | | | | | | | | | |  |  |  | | |
 | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | — | 7:15 | — | — | 7:14 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — |
Temp °C | 21 | 23 | 22 | 21 | 22 | 23 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 24 | 24 | 24 | 24 | 28 | 27 |
Feels °C | 21 | 23 | 19 | 21 | 21 | 21 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 24 | 23 | 23 | 25 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | W 5 | SSW 12 | SSW 13 | SSW 12 | SSW 11 | SW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | S 14 | S 14 | S 14 | S 14 | S 13 |
| kJ | 119 | 112 | 78 | 20 | 106 | 149 | 203 | 143 | 460 | 547 | 594 | 667 | 620 | 512 | 453 | 844 | 1172 | 1207 | 1283 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | S 10 | W 6 | S 10 | W 6 | W 6 | SSW 10 | W 6 | W 6 | SW 10 | SSE 15 | S 14 | SSW 16 | SSW 15 | SW 20 | WSW 10 | — |
| kJ | 156 | 116 | 114 | 46 | 24 | 80 | 35 | 37 | 90 | 29 | 38 | 52 | 222 | 411 | 512 | 451 | 15 | 30 | — |
Swell 3 Height (m) Direction Period (s) | W 5 | W 5 | SW 18 | SSW 13 | SW 16 | SSW 16 | SW 17 | SW 16 | SSW 13 | SSW 11 | SW 11 | SSE 15 | W 5 | W 6 | SW 10 | W 10 | — | W 12 | — |
| kJ | 12 | 14 | 80 | 93 | 132 | 175 | 291 | 118 | 32 | 50 | 55 | 71 | 16 | 15 | 27 | 53 | — | 3 | — |
Wind waves Height (m) Direction Period (s) | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | W 5 | — | WNW 5 | NW 5 | — |
| kJ | — | — | 21 | — | — | 22 | — | — | 47 | — | — | 22 | — | — | 14 | — | 15 | 13 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 68 | 17 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 171 | 8 | 68 | 68 | 0 | 68 | 68 | 0 | 25 | 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.
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