Surf Forecasts:
Oceanside Harbor surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 5AM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 5.5ft (1.7m), 14s period, S swell with 1,142 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 8PM (local time) - 3.5ft (1.0m), 14s 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 Sunday (Aug 30) at 8PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.7m and 7s. 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 14s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 30th Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 5AM (Mon 31st Aug) | 3ft (0.9m) 14s |
| Most Powerful | 11AM (Sun 6th Sep) | 5.5ft (1.7m) 14s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve gotta be straight with you – the next 16 days at Oceanside Harbor are a real mixed bag, and a lot of it is pretty grim. The water is cooking at 77°, which is much warmer than usual for this time of year, so that’s a nice little bonus if you’re just having a paddle, but the surf? It’s a tough watch for most of the run.
The first recommendation doesn’t pop up until Sunday, the 30th of August, and even then it’s a bit of a struggle. We’ve got a long wait after that for anything decent. From Sunday the 30th morning through to Saturday the 5th of September, the ocean is pretty flat with tiny swell – mostly 2 ft to 4 ft from the SSW and S, and the wind is cross-on or onshore for most of it. The energy is weak to moderate (like 162 to 804), and the wave quality is poor. Not worth paddling out for.
Now, the real standout, and the only thing that gets the blood pumping, is from Sunday the 6th of September. That morning we see a solid 6 ft swell from the south, with a 14-second period – that’s proper groundswell energy. The combined energy jumps up to 1212, which is strong. On top of that, the wind is cross-shore out of the NW at 25 km/h, keeping things a bit more manageable. The break is a beach/jetty setup, and with a long period like that, it’ll be better for the jetty side where the waves won’t just close out. The swell direction is SSW, and the optimum direction for this spot is W, so it’s not a perfect match, but it’s still the best we’ll see. Crowds are often an issue here, so expect company. The swell size is manageable for advanced surfers, but under 8 ft, so it’s not too gnarly.
Monday the 7th of September morning keeps the 6 ft swell from the SSW, and the wind is onshore out of the SW at 10 km/h, making it a bit cleaner. The energy is 1290 – strong. But by the afternoon, a rain shower hits with a near gale from the SSE at 60 km/h, blowing it out completely. Then Tuesday the 8th of September morning sees a 8 ft swell from the SSW, with a 14-second period and energy at 2378 – that’s very strong. But the wind is cross-on from the WNW at 15 km/h, so it’ll be choppy. That size is at the limit for regular surfers, so only experts should be looking at it. By Tuesday afternoon, it’s 12 ft and blown out – definitely not for the faint-hearted.
After that, the forecast drops off a cliff. From Wednesday the 9th of September right through to Monday the 14th of September, we’re back to tiny, poor surf with weak energy, no real standout to get excited about.
So, the best on offer is Sunday the 6th of September morning and Monday the 7th of September morning. The jetty might offer a few lefts and rights if you can find a peak. Don’t get your hopes up too high for the long-range – the second week is a write-off. If you’re a kiter, with the strong winds and choppy conditions, this setup might be more interesting for you than paddle surfing.
Rusty out.
Short Range ForecastMostly dry. Warm (max 25°C on Sun afternoon, min 21°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Wed afternoon, min 21°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | SSW 13 | SSW 13 | SSW 13 | S 12 | SSW 13 | SW 16 | SW 17 | SSW 12 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
537 | 478 | 389 | 253 | 184 | 156 | 116 | 118 | 199 | 93 | 129 | 288 | 193 | 399 | 547 | 594 | 667 | 620 | 512 | 512 | 475 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | cross-on | glassy | on | on | glassy | on | cross-on | cross-off |
High Tide | 11:04AM1.97m | 11:10PM1.79m | 11:32AM2.02m | 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 | ||||||||
Low Tide | 5:13PM0.65m | 5:10AM0.64m | 6:02PM0.64m | 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 | ||||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | |
— | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 23 | 23 | 23 | 22 | 24 | 24 | 22 | 24 | 25 | 23 | 24 | 24 | 22 | 24 | 24 | 23 | 25 | 26 | 24 |
Feels °C | 24 | 25 | 26 | 23 | 21 | 22 | 23 | 21 | 20 | 22 | 22 | 21 | 23 | 23 | 22 | 24 | 23 | 24 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 12 | S 11 | S 11 | S 11 | S 12 | W 6 | SSW 13 | SSW 12 | SSW 12 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 13 |
537 | 478 | 389 | 253 | 184 | 119 | 112 | 110 | 199 | 22 | 96 | 203 | 193 | 399 | 547 | 594 | 667 | 620 | 512 | 512 | 423 | |
Swell 2 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | S 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | W 5 | SSW 13 | S 10 | SW 17 | W 6 | SSW 11 | W 6 | W 6 | SSW 11 | W 5 | W 7 | S 13 | SSW 16 |
82 | 63 | 78 | 206 | 158 | 156 | 116 | 118 | 18 | 93 | 70 | 288 | 41 | 145 | 42 | 25 | 76 | 21 | 43 | 229 | 475 | |
Swell 3 Height (m) Direction Period (s) | S 8 | S 12 | SSE 12 | W 7 | SSW 19 | W 5 | W 6 | SW 18 | SW 18 | S 10 | SW 16 | W 5 | SW 15 | SW 15 | SW 12 | SSW 11 | SSW 11 | SW 10 | S 13 | SW 10 | W 6 |
10 | 44 | 46 | 55 | 35 | 21 | 15 | 80 | 152 | 47 | 129 | 26 | 186 | 54 | 140 | 78 | 25 | 50 | 130 | 35 | 35 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 6 | — | — | W 5 | — | — | W 6 | — | — | W 6 | — | — | W 6 | — | — | W 6 | — |
— | — | — | — | 36 | — | — | 21 | — | — | 30 | — | — | 38 | — | — | 25 | — | — | 28 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 32 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 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.











