
Surf Forecasts:
Oceanside Harbor surf forecast from 7 Sep 2026:
- Best quality surf: Sunday 6 Sep, 8PM (local time) - 6ft (1.8m), 13s period, S swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 5AM (local time) - 6ft (1.8m), 14s period, SSW swell with 1,363 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 8PM (local time) - 6ft (1.8m), 13s 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 Sunday (Sep 06) at 8PM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 1.3m and 12s. Another secondary swell of 0.4m and 11s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Oceanside Harbor in the next 16 days are 1.8m 14s and forecast to arrive on Monday (Sep 07) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 06) at 11PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 6th Sep) | 6ft (1.8m) 13s |
| Best Surf | 8PM (Sun 6th Sep) | 6ft (1.8m) 13s |
| Most Powerful | 5AM (Mon 7th Sep) | 6ft (1.8m) 14s |
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 on the cards for the next couple of weeks.
Right off the bat, we’ve got a solid pulse of South swell hitting Oceanside Harbor on Sunday morning. The water is sitting at 73°, which is a whopping 5° warmer than usual for this time of year – that’s very unusual, and it’s hard to complain about. We’re looking at a 6ft swell from the South with a period of 14 seconds, which is a proper long-period groundswell. The combined energy of all swells directed here is strong at 1304. Now, with that long period and a South swell, this beach/jetty setup can sometimes get a little straight, but it’s got power. The wind is out of the NNW at 9 mph, which is a cross-offshore breeze, so the surf will be clean. However, this is an advanced break, and the size at 6ft with that energy is no joke for beginners. It’s also very consistent and often crowded, so expect some company. Sunday afternoon cleans up even more with a solid 5ft from the South and a NNE wind at 12 mph going offshore, keeping it clean. That’s your standout window: Sunday morning and afternoon.
Monday starts to back off. The wind swings around to the WNW at 9 mph, going cross-onshore, and the swell drops to 6ft from the SSW. It’s already getting a bit messy. By Monday afternoon, a stronger WNW wind at 16 mph is making things cross-shore and choppy. The energy is fading to 1109. The shine is off the apple.
From Tuesday morning (8th September) onward, it’s a slow bleed. Swell heights drop below 5ft, and the wind stays mostly cross-onshore or onshore through the rest of the week and into the next. Periods get long again, like 16 to 17 seconds, but the swell is weak – below 3ft. The combined energy values fall into the 400-700 range, weak to moderate at best. The wind is mostly light, but the cross-onshore direction and small size mean poor to marginal conditions. There’s a brief flicker on Thursday morning (10th September) with a 3ft swell from the SW at 17 seconds and light onshore wind, but it’s only rated marginal. Not worth getting excited about.
The second week is flat and quiet. From Monday 14th September all the way through to Monday 21st September, we’re looking at tiny swell – 1ft to 3ft – with long periods but no energy to speak of. The wind is generally light and onshore or cross-onshore. It’s a long stretch of poor surf, with very few days even reaching a marginal call. If you’re a kite surfer, this setup might be more interesting, but for a paddle surfer, it’s a blank run.
So, the headline is simple: Sunday, 6th September is your only real shot. Hit it early for the best of the clean south swell with the offshore wind. The rest of the forecast is a long, slow fade.
Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 28°C on Tue morning, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed afternoon, min 21°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | S 13 | S 12 | SSW 13 | SSW 12 | SSW 11 | SSW 13 | SSW 10 | SSW 10 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
737 | 679 | 1025 | 986 | 455 | 560 | 232 | 148 | 214 | 278 | 419 | 553 | 502 | 483 | 400 | 360 | 309 | 248 | 164 | 160 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | glassy | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 6:01PM2.14m | 8:09AM1.64m | 7:00PM2.24m | 8:37AM1.76m | 7:51PM2.30m | 9:05AM1.88m | 8:37PM2.28m | 9:33AM1.98m | 9:21PM2.20m | 10:01AM2.05m | 10:04PM2.06m | 10:29AM2.09m | 10:46PM1.88m | |||||||
Low Tide | 1:27AM0.18m | 12:55PM1.08m | 2:07AM0.11m | 1:47PM0.90m | 2:43AM0.10m | 2:34PM0.74m | 3:16AM0.16m | 3:18PM0.61m | 3:46AM0.28m | 4:01PM0.53m | 4:14AM0.43m | 4:43PM0.49m | 4:40AM0.61m | |||||||
— | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | |
7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 27 | 25 | 28 | 27 | 25 | 27 | 25 | 25 | 25 | 25 | 24 | 24 | 23 | 22 | 22 | 22 | 21 |
Feels °C | 26 | 25 | 27 | 26 | 26 | 28 | 25 | 26 | 28 | 25 | 27 | 26 | 26 | 26 | 24 | 23 | 23 | 21 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 12 | SSW 13 | SSW 12 | SSW 11 | SSW 13 | SSW 10 | SSW 10 | SSW 9 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 6 | W 6 | SW 14 |
737 | 679 | 1025 | 986 | 455 | 560 | 232 | 148 | 70 | 278 | 419 | 553 | 502 | 483 | 400 | 360 | 309 | 50 | 33 | 160 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SW 19 | SW 19 | SSW 14 | SW 18 | SSW 13 | SSW 13 | SSW 13 | SSW 9 | SSW 12 | SW 8 | W 6 | W 7 | W 7 | W 7 | W 6 | SW 14 | SW 14 | W 6 |
525 | 505 | 58 | 55 | 236 | 111 | 154 | 135 | 133 | 67 | 82 | 34 | 16 | 55 | 63 | 32 | 36 | 248 | 164 | 27 | |
Swell 3 Height (m) Direction Period (s) | W 12 | — | WSW 10 | — | WNW 4 | SSW 15 | SW 18 | SW 16 | SW 16 | SSW 12 | SSW 8 | S 12 | SW 8 | SW 7 | SW 7 | SW 6 | S 10 | S 9 | SW 18 | S 9 |
3 | — | 9 | — | 6 | 42 | 112 | 130 | 214 | 86 | 25 | 72 | 23 | 19 | 12 | 14 | 16 | 15 | 48 | 6 | |
Wind waves Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 4 | WNW 4 | — | WNW 5 | WNW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
45 | 38 | 6 | 7 | — | 8 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 32 | 32 | 68 | 32 | 55 | 68 | 0 | 68 | 116 | 68 | 98 | 117 | 46 | 98 | 46 | 46 | 98 | 175 |
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.










