Surf Forecasts:
Oceanside Harbor surf forecast from 10 Sep 2026:
- Best quality surf: Saturday 12 Sep, 8PM (local time) - 2ft (0.6m), 14s period, SW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 8AM (local time) - 3.5ft (1.0m), 17s period, SW swell with 560 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8PM (local time) - 2ft (0.6m), 14s 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 Saturday (Sep 12) at 8PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.6m 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 1.0m 17s and forecast to arrive on Thursday (Sep 10) at 8AM. 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 (Sat 12th Sep) | 2ft (0.6m) 14s |
| Best Surf | 8PM (Sat 12th Sep) | 2ft (0.6m) 14s |
| Most Powerful | 8AM (Thu 10th Sep) | 3.5ft (1.0m) 17s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Gather 'round, surfers. Rusty here, and I've got the straight-up truth for what's on offer at Oceanside Harbor for the next couple of weeks. Let's be honest, the outlook is a bit of a mixed bag—not a total washout, but you'll have to be patient and pick your moments.
Right now, it's a slow start. The first few days are a bit of a write-off, with the surf being small and the conditions just not coming together. The water temp is sitting at about 72°, which is a touch warmer than normal for this time of year, so at least you won't be freezing your toes off.
We start seeing a glimmer of hope on Thursday, September 16th. The morning brings some potential with a 3ft SSW swell, but it's coming from a cross-on direction. The real standout, and the one I'd circle on your calendar, is Sunday, September 20th. The morning session at Oceanside Harbor is looking like the best on offer. We're looking at a clean 3ft SW swell with a long 18-second period, pushing a very solid 609 combined energy. The wind is blowing *on*, which is a bit of a bummer, but the long period means those waves will have some real grunt and shape. It's a beach/jetty setup, so that long period swell might make for some straight lines, but it's the best energy we're going to see. The crowds are *often* here, so expect some company.
After that, the week of the 21st and 22nd of September offers a few more marginal sessions, with the swell hanging around the 3ft mark from the SW, but the wind is a constant cross-on, keeping things a little choppy. The surf is pretty weak for the rest of the run, with small, poor-quality waves.
So, there's a bit of a gap in the first week, and then a few promising days. If you're keen, aim for the 20th of September, but don't expect a world-class day. The rest of the time, it's a waiting game.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 29°C on Wed afternoon, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sat afternoon, min 19°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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) | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SSW 20 | SSW 18 |
Wave Graph  | ||||||||||||||||||||
 kJ | 278 | 419 | 547 | 502 | 483 | 471 | 365 | 309 | 248 | 164 | 160 | 147 | 87 | 129 | 108 | 150 | 190 | 161 | 127 | 114 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | on | cross | on | cross-on | glassy |
High Tide | 8:37PM2.28m | 9:33AM1.98m | 9:21PM2.20m | 10:01AM2.05m | 10:04PM2.06m | 10:29AM2.09m | 10:46PM1.88m | 10:56AM2.10m | 11:30PM1.68m | 11:24AM2.06m | 00:18AM1.49m | 11:53AM1.99m | 1:22AM1.32m | |||||||
Low Tide | 2:34PM0.74m | 3:16AM0.16m | 3:18PM0.61m | 3:46AM0.28m | 4:01PM0.53m | 4:14AM0.43m | 4:43PM0.49m | 4:40AM0.61m | 5:27PM0.50m | 5:04AM0.79m | 6:14PM0.56m | 5:24AM0.96m | 7:08PM0.64m | |||||||
 |  |  | |  | | | | | |  | | | | | | | | | | |
 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — |
 | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | — | 6:55 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 26 | 26 | 25 | 23 | 23 | 23 | 22 | 21 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 19 | 21 | 21 | 20 |
Feels °C | 29 | 28 | 28 | 26 | 24 | 24 | 23 | 24 | 21 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | SW 17 | SW 16 | SW 16 | SW 16 |
| kJ | 278 | 419 | 547 | 502 | 483 | 471 | 365 | 309 | 248 | 164 | 39 | 85 | 67 | 51 | 60 | 33 | 190 | 161 | 122 | 88 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | W 6 | W 6 | WSW 7 | W 7 | W 6 | W 6 | W 6 | W 6 | SW 14 | SW 14 | SW 13 | SW 13 | SW 18 | SW 18 | W 6 | W 6 | SSW 20 | SSW 18 |
| kJ | 119 | 82 | 16 | 17 | 15 | 42 | 29 | 24 | 32 | 23 | 160 | 147 | 87 | 85 | 108 | 150 | 18 | 10 | 127 | 114 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SSW 8 | S 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | S 10 | S 10 | S 10 | S 9 | S 8 | SW 19 | SW 19 | SSW 13 | SW 13 | SW 12 | SW 12 | W 9 | SSW 15 |
| kJ | 45 | 23 | 72 | 46 | 39 | 22 | 20 | 16 | 31 | 30 | 25 | 12 | 58 | 129 | 66 | 40 | 38 | 37 | 24 | 73 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 32 | 9 | 46 | 46 | 9 | 98 | 171 | 68 | 68 | 68 | 12 | 46 | 117 | 9 | 108 | 98 | 7 | 98 | 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.
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