
Surf Forecasts:
Oceanside Harbor surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11AM (local time) - 6ft (1.8m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 8AM (local time) - 6ft (1.9m), 14s period, SSW swell with 1,364 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 11AM (local time) - 6ft (1.8m), 14s 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 11AM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 0.1m and 20s. Another secondary swell of 0.6m and 10s is also forecast. The wind is predicted to be cross-offshore 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 Monday (Sep 07) 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+) | 11AM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Best Surf | 11AM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Most Powerful | 8AM (Mon 7th 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 have a look at what’s cookin’ for Oceanside Harbor.
Right off the bat, we’ve got a short window of solid, clean surf, but it’s not for everyone. Sunday morning the 6th is the pick of the early run. The water is sitting at a balmy 73°, which is much warmer than normal for this time of year—a solid 5° above average. The swell is a clean 6ft from the S, with a long period of 14 seconds. That’s proper groundswell, and with a moderate wave energy of (1330), there’s plenty of punch. The wind is N at 9 mph, blowing cross-offshore, and conditions are clean. The only bummer is this is an exposed beach/jetty setup, and long-period S swells can sometimes make a beach break a bit straight and walled up. It’s also a spot that often sees crowds, so expect company. This is definitely for advanced surfers only.
Sunday afternoon holds up nicely too. We see light rain moving in with the wind swinging NNE at 12 mph, blowing offshore. The swell drops a touch to 5ft, still from the S at 13 seconds, with strong energy (1310). Conditions remain moderate offshore and clean, but again, it’s still a spot for the experienced crew.
Now, here’s where it gets tough. From Monday the 7th onward, things really start to fall apart. Monday morning is a cross-on mess with 6ft from the SSW, but the wind is WNW at 9 mph, and it’s already looking fairly choppy. By the afternoon, the wind picks up to 16 mph with a cross-shore chop—nasty. The energy is dropping (1099 and 959) and the quality is gone. The rest of the week into the second week is a long, drawn-out stretch of poor to marginal conditions. There are big gaps of several days with nothing worth paddling out for. The swell stays small, often under 3ft, and the winds are almost always cross-onshore or onshore. Tuesday the 8th, Wednesday the 9th, Thursday the 10th, Friday the 11th, Saturday the 12th—it’s all small, choppy, or both. There is a long-period SW groundswell coming through Wednesday morning the 9th with a 16-second period, but it’s only 2ft to 2ft, and the wind is cross-on, so it’s basically a non-event.
Even into the second week, from the 13th to the 21st of September, we see a few little pulses of energy, but nothing that comes together with clean wind. There are some long-period SW and SSW swells in there—18 seconds, 19 seconds, even 20 seconds on the 15th—but the height is tiny, mostly 1ft to 3ft. The combined energy does climb back up a bit (581 on the 21st morning), but with light cross-on breezes, it’s still just a marginal look at best. The afternoon of the 21st shows 3ft from the SW at 17 seconds with an onshore wind, but the wind state is unknown. It’s hard to get excited about that.
Honestly, the standout is Sunday the 6th. That morning session is your best bet by a long shot. After that, the forecast is a real letdown for Oceanside Harbor. The pattern looks pretty flat and messy for a long stretch. If you’re not an advanced surfer, this whole run is a write-off.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 28°C on Tue morning, min 23°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Wed morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | S 14 | S 13 | S 12 | SSW 13 | SSW 12 | SSW 11 | SSW 13 | SSW 11 | SSW 10 | SSW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | W 8 |
Wave Graph | |||||||||||||||||||||
1225 | 737 | 694 | 1025 | 890 | 615 | 690 | 256 | 190 | 173 | 278 | 419 | 547 | 502 | 483 | 400 | 360 | 309 | 214 | 164 | 239 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross | cross-on | cross | cross | cross-on | cross-on | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
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 | 11:49AM1.23m | 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 | — | — | 6:26 | — | — | 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 | 25 | 26 | 26 | 27 | 27 | 25 | 28 | 28 | 26 | 28 | 27 | 24 | 26 | 25 | 23 | 24 | 24 | 22 | 23 | 22 | 21 |
Feels °C | 24 | 26 | 27 | 27 | 26 | 24 | 27 | 26 | 28 | 27 | 27 | 26 | 26 | 25 | 24 | 25 | 24 | 23 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 12 | SSW 13 | SSW 12 | SSW 11 | SSW 13 | SSW 11 | SSW 10 | SSW 9 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 7 | W 7 | W 8 |
1225 | 737 | 694 | 1025 | 890 | 615 | 690 | 256 | 190 | 139 | 278 | 419 | 547 | 502 | 483 | 400 | 360 | 309 | 92 | 83 | 239 | |
Swell 2 Height (m) Direction Period (s) | SW 20 | SSW 15 | SSW 15 | SW 19 | SW 19 | W 4 | SW 18 | SSW 13 | SSW 13 | SSW 16 | SW 9 | W 5 | W 6 | W 6 | W 7 | W 8 | W 7 | W 6 | SW 14 | SW 14 | SW 14 |
15 | 525 | 505 | 57 | 56 | 9 | 81 | 195 | 101 | 173 | 83 | 19 | 25 | 27 | 69 | 94 | 35 | 54 | 214 | 164 | 162 | |
Swell 3 Height (m) Direction Period (s) | SW 20 | W 12 | — | — | W 11 | SW 18 | SW 21 | SW 18 | W 5 | SSW 13 | SSW 12 | SW 8 | SW 8 | SW 8 | SW 8 | S 11 | SW 6 | S 10 | WSW 14 | WSW 13 | S 9 |
15 | 3 | — | — | 2 | 51 | 18 | 112 | 11 | 98 | 85 | 57 | 41 | 24 | 20 | 20 | 14 | 16 | 41 | 34 | 6 | |
Wind waves Height (m) Direction Period (s) | WNW 10 | WNW 11 | WNW 11 | W 10 | WNW 4 | WNW 4 | W 5 | W 4 | — | W 5 | W 5 | — | — | — | — | — | — | — | — | — | — |
75 | 45 | 38 | 17 | 11 | 15 | 8 | 9 | — | 8 | 11 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 32 | 32 | 68 | 32 | 32 | 68 | 0 | 68 | 101 | 95 | 46 | 46 | 46 | 98 | 98 | 9 | 98 | 108 | 46 |
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.










