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★+): Friday 14 Aug, 8AM (local time) - 2.5ft (0.7m), 15s 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 Friday (Aug 14) at 8AM. The primary swell is predicted to be 0.7m and 15s period with a secondary swell of 0.5m and 19s. 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 1.2m 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+) | 8AM (Fri 14th Aug) | 2.5ft (0.7m) 15s |
| 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, Rusty here again. Let's break it down for you guys who think in feet.
First thing's first: the water temp is pretty normal for this time of year, nothing crazy.
The first chance at a wave is Friday, August 14th, but it's a total waste of time. We're looking at knee-high slop from the SSW, about 2 to 3 feet, but with a cross-onshore breeze. It's going to be choppy and messy. The energy is pathetic. Saturday and Sunday are a repeat of the same weak, wind-affected dribble. Honestly, from the 14th all the way through the 26th, it's a brutal flat spell. The swell barely gets above 3 feet, and the wind is always in the wrong spot. Don't even bother.
Now, pay attention. The end of the month looks like a totally different story. Thursday, August 27th, the swell kicks up to 5 to 6 feet from the S. The energy jumps way up. It's still a bit onshore, so it'll be lumpy, but at least there's some size.
The real standout is Friday, August 28th. This is the one. The swell is a solid 7 to 8 feet from the SSW, with a long 14-second period. The energy is heavy. But the magic is the wind. In the afternoon, it's forecast to be glassy. Flat calm. For a beach break, that means clean, perfect, powerful waves. This is expert territory only – that size is serious, and the long period will make it hollow and fast. It's going to be packed, absolutely packed, with the crowds. But for that one afternoon, if you're good enough, it's the best surf on offer.
The next day, Saturday the 29th, the swell drops back to 5-6 feet and the wind turns back onshore, ruining it.
So, expect a long, boring summer lull until the very end. Then, keep your fingers crossed for a glassy, powerful swell on Friday, August 28th. It's a long-range call, so it's not a lock, but it's a hell of a lot more promising than anything else on the board.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed morning, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 15 | 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 |
Wave Graph | |||||||||||||||||||
280 | 302 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 264 | 261 | 232 | 240 | 272 | 377 | 387 | 246 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | glassy | on | on | glassy | on | on | glassy |
High Tide | 10:16PM2.30m | 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 | |||||||
Low Tide | 4:58AM0.17m | 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 | |||||||
— | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | — | 7:36 | — | — | 7:35 | — | — | 7:34 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 23 | 24 | 22 | 24 | 24 | 23 | 25 | 24 | 23 |
Feels °C | 23 | 22 | 21 | 21 | 20 | 20 | 21 | 22 | 21 | 21 | 23 | 23 | 23 | 25 | 24 | 26 | 26 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | 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 |
280 | 255 | 404 | 807 | 417 | 683 | 666 | 499 | 372 | 367 | 330 | 264 | 93 | 98 | 68 | 272 | 377 | 387 | 246 | |
Swell 2 Height (m) Direction Period (s) | SSW 20 | SSW 18 | SW 14 | S 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 7 |
149 | 302 | 214 | 70 | 191 | 21 | 19 | 15 | 8 | 41 | 38 | 63 | 261 | 232 | 240 | 55 | 63 | 44 | 42 | |
Swell 3 Height (m) Direction Period (s) | SSW 10 | 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 |
32 | 37 | 66 | 2 | 37 | 2 | 20 | 19 | 2 | 8 | 8 | 8 | 2 | 116 | 98 | 15 | 16 | 4 | 13 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 4 | W 5 | — | — | W 5 | — | — | W 6 | — | — | — | — | — | — | — |
— | — | — | — | 6 | 11 | — | — | 21 | — | — | 53 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 17 | 68 | 68 | 0 | 68 | 68 | 68 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 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.











