
Surf Forecasts:
Oceanside Harbor surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 8AM (local time) - 2ft (0.6m), 13s period, SSW 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★+): Wednesday 9 Sep, 8AM (local time) - 2ft (0.6m), 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 Wednesday (Sep 09) at 8AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.6m and 4s is also forecast. 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+) | 8AM (Wed 9th Sep) | 2ft (0.6m) 13s |
| Best Surf | 8AM (Wed 9th Sep) | 2ft (0.6m) 13s |
| 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
Alright, let's get into it. Look, the next couple of weeks are looking pretty flat and weak for our stretch of coast. Don't get too amped for any waves just yet. We've got a long stretch of small, poor surf ahead. The first real window of anything even semi-rideable isn't until Thursday the 10th, and even then, it's pretty marginal. After a blank start, we'll see a few days of knee-high dribble before things really taper off again. It's not looking epic, but let’s break it down day by day.
Tuesday afternoon (Sept 8th) kicks things off with a fresh cross-shore breeze and some lumpy chop. Swell is a weak 3ft from the SSW, but with a period of 10 seconds and combined energy of 484, it's weak and messy. The wind is 30 km/h, which just adds to the surface texture. Honestly, you're better off finding something else to do.
Wednesday the 9th is cleaner with a light breeze, but the swell drops. Morning sees 2ft SSW groundswell with a long 16-second period, but the energy is low (384) and the cross-on wind makes it bumpy. Afternoon is a touch better at 2ft, but it's still small and clean, and it's a long period swell that will close out at the beach. Not worth the paddle.
Thursday the 10th is about the best it gets for a while, and it's not saying much. Morning has 3ft of SSW groundswell with a 17-second period. Combined energy is 635, which is the most we'll see for a few days. There's a light cross-on breeze, so it will be a bit liney, but it's the cleanest we'll get. The long period is going to make it top-heavy at a beach break like this, but there might be a couple of lefts off the jetty if you're keen. Afternoon sees the wind pick up slightly and it gets a bit choppier.
From Friday the 11th through Monday the 14th, it's a slow fade. Swell drops from 3ft down to 1ft. The wind is mostly light or gentle, but the waves are just not there. This is the kind of stretch where you're just watching the tide come in and go out. The combined energy drops into the 200s for a lot of it, which is weak. Definitely a good week to work on your pop-up on the lawn.
Tuesday the 15th offers a glimmer of hope with a long-period SSW swell of 20 seconds in the afternoon, but the height is only 1ft. The period says energy, but the size just isn't there. It'll be a long, lully wait between tiny sets. Not worth the effort.
From Wednesday the 16th through to the end of the window on September 23rd, the pattern is the same. Small 2ft to 3ft swells, mostly SW. The mornings are consistently blown onshore from the SW, but we do see several mornings on the weekend of the 19th and 20th with light winds. The 20th of September has a morning with 3ft SW swell, a 17-second period, and light winds, and the energy is pushing 509. That's probably the other slightly less-marginal window. It’s still tiny, but it might have a fun crumble on the higher tides.
Overall, the standout options are pretty weak. Thursday the 10th morning is the first pick, and then the morning of Sunday, September 20th is a distant second. Both have decent long-period energy for the size, and light winds to keep things clean-ish. But don't expect any barrels. Crowds are likely at Oceanside Harbor given how consistent the break is, so even these marginal sneaky ones might have a few heads out.
Water temp is 73°, which is a full 5° warmer than normal for this time of year, so that's notable. You won't need a hood, that's for sure.
There are long gaps of nothing to write home about here. That’s the reality of this stretch. The forecasts can change, but as it stands, it's a waiting game.
Rusty
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 29°C on Tue night, min 21°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Fri night, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 10 | SSW 16 | 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 |
Wave Graph | |||||||||||||||||||
145 | 173 | 278 | 419 | 547 | 502 | 483 | 471 | 365 | 309 | 211 | 164 | 160 | 147 | 87 | 129 | 108 | 150 | 190 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy |
High Tide | 9:05AM1.88m | 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 | |||||||
Low Tide | 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 | 5:27PM0.50m | 5:04AM0.79m | 6:14PM0.56m | |||||||
— | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:57 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 27 | 24 | 25 | 25 | 23 | 23 | 23 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 30 | 30 | 28 | 26 | 26 | 25 | 25 | 23 | 23 | 22 | 20 | 21 | 22 | 20 | 21 | 21 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 9 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 6 | W 7 | W 7 | W 8 | W 8 | W 7 | W 8 | W 7 | W 7 |
145 | 67 | 278 | 419 | 547 | 502 | 483 | 471 | 365 | 309 | 51 | 44 | 44 | 116 | 71 | 87 | 97 | 69 | 43 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | W 5 | W 6 | W 6 | W 6 | W 7 | W 7 | W 6 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 18 | SW 18 | SW 17 |
135 | 135 | 86 | 20 | 25 | 26 | 29 | 58 | 43 | 36 | 211 | 164 | 160 | 147 | 87 | 85 | 108 | 150 | 190 | |
Swell 3 Height (m) Direction Period (s) | W 5 | SSW 16 | SSW 8 | SSW 12 | S 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | S 10 | WSW 15 | WSW 13 | S 9 | S 9 | SW 19 | SW 19 | SW 13 | SW 13 | SW 12 |
11 | 173 | 45 | 82 | 72 | 46 | 23 | 22 | 20 | 16 | 42 | 35 | 14 | 13 | 58 | 129 | 84 | 78 | 38 | |
Wind waves Height (m) Direction Period (s) | WNW 5 | W 4 | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24 | 6 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 68 | 68 | 68 | 68 | 17 | 46 | 46 | 46 | 98 | 108 | 46 | 47 | 68 | 9 | 98 | 68 | 4 | 68 | 68 |
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.










