Surf Forecasts:
Oceanside Harbor surf forecast from 14 Aug 2026:
- Best quality surf: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with 807 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 2AM (local time) - 4ft (1.2m), 17s 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 Saturday (Aug 15) at 2AM. The primary swell is predicted to be 1.2m and 17s period with a secondary swell of 0.4m and 12s. 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 1.2m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
| Best Surf | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
| Most Powerful | 2AM (Sat 15th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright, check it out—Rusty here, and I’ve been glued to the data for the next sixteen days. We’ve got a flat, frustrating run ahead, but there’s a solid pulse of swell coming late in the game that might just make it all worth it.
For the first week, it’s mostly a bust. The first real chance we see is at Oceanside Harbor (Oceanside-Harbor) on Friday the 14th and Saturday the 15th. There’s some south-southwest groundswell—3 to 4 feet—with a long 16-18 second period. That’s real energy, reading 594-713 on the combined scale. But the wind’s cross-onshore, so it’s a bit lumpy, and tide’s a factor. Water temp’s running 74°F, which is a good 7°F above average, so it’s warm, but the waves are marginal.
Then it just dies. From Saturday the 16th through Sunday the 23rd, we’re looking at nothing rideable. Swell drops to a foot or two, periods shrink to 13-15 seconds, and the energy’s weak—barely 100-200 on that scale. The wind stays cross-on or onshore, and it’s just choppy, uninviting whitewash. You’d be fighting for nothing at the Harbor. A few light wind days on the 18th, but the swell’s just not there.
Now, here’s the one to watch. Tuesday the 25th and Wednesday the 26th—this is the standout. A proper south swell is forecast, pushing 5 to 7 feet with a 15-second period. The combined energy jumps to a massive 2510-2554, which is serious juice. The wind’s light and onshore, which could make it a bit bumpy, but this is the biggest, most powerful swell of the whole window. Water’s still warm, and this is the one I’d be clearing my schedule for. It’s big enough to challenge even the best, so leave the beginners on the sand.
After that, it fades fast. Thursday the 27th still has some size—around 5 feet—but the period drops and the direction swings more south-west. By Friday the 28th, we’re back to 3 feet, and the weekend of the 29th and 30th is all slop—3 to 4 feet of choppy, cross-onshore mess.
Bottom line: the next week is a wash, maybe a fun Friday if you’re desperate. The real deal is that Tuesday/Wednesday swell—it’s got the size and power to light up the harbor, but it’s not for the faint of heart. Keep an eye on the charts, because this long-range forecast could shift, but it’s the most promising thing on the board.
Stay charged.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Wed morning, min 21°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
302 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 264 | 257 | 232 | 240 | 272 | 377 | 387 | 249 | 236 | 236 | 175 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | glassy | on | on | glassy | cross-on | on | cross-on | on | on | on |
High Tide | 11:19AM1.93m | 11:00PM2.09m | 11:52AM1.96m | 11:45PM1.85m | 12:26PM1.96m | 00:34AM1.60m | 1:01PM1.93m | 1:36AM1.37m | 1:41PM1.88m | 3:24AM1.21m | 2:34PM1.82m | 3:47PM1.80m | |||||||||
Low Tide | 5:00PM0.72m | 5:29AM0.35m | 5:51PM0.72m | 5:58AM0.56m | 6:46PM0.75m | 6:24AM0.77m | 7:51PM0.79m | 6:47AM0.96m | 9:16PM0.81m | 7:02AM1.12m | 10:59PM0.76m | 00:19AM0.65m | |||||||||
6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | |
— | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 23 | 23 | 22 | 24 | 24 | 22 | 25 | 25 | 23 | 24 | 24 | 23 |
Feels °C | 23 | 22 | 20 | 21 | 20 | 20 | 22 | 21 | 21 | 24 | 22 | 24 | 25 | 24 | 24 | 26 | 25 | 25 | 25 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | W 7 | W 8 | W 8 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
255 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 264 | 73 | 71 | 69 | 272 | 377 | 387 | 249 | 236 | 236 | 175 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SW 14 | SSW 12 | SW 14 | S 11 | W 5 | W 6 | S 10 | W 6 | W 6 | SSW 18 | SSW 14 | SSW 16 | SSW 16 | W 9 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 |
302 | 214 | 46 | 191 | 21 | 18 | 15 | 8 | 41 | 38 | 63 | 257 | 232 | 240 | 53 | 46 | 31 | 18 | 18 | 19 | 10 | |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 11 | W 11 | S 11 | W 11 | S 11 | S 10 | W 10 | S 10 | S 10 | S 10 | S 10 | SSW 13 | SSW 13 | SW 19 | SW 20 | W 14 | SW 18 | SW 19 | WSW 19 | S 10 |
37 | 66 | 2 | 37 | 2 | 20 | 19 | 2 | 8 | 8 | 8 | 2 | 114 | 98 | 15 | 16 | 4 | 13 | 57 | 35 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | — | W 5 | W 5 | — | — | W 6 | — | — | W 6 | — | — | — | — | — | — | — | — | — | — |
— | — | — | 7 | 7 | — | — | 21 | — | — | 41 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 68 | 68 | 0 | 68 | 68 | 68 | 68 | 68 | 7 | 34 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 15 | 46 | 68 | 17 |
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.











