
Surf Forecasts:
Oceanside Harbor surf forecast from 4 Aug 2026:
- Best quality surf: Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 5AM (local time) - 3ft (0.9m), 18s period, SSW swell with 438 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 11PM (local time) - 1.5ft (0.4m), 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 Tuesday (Aug 04) at 11PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 13s. 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 0.9m 18s and forecast to arrive on Saturday (Aug 08) at 5AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 4th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 5AM (Sat 8th Aug) | 3ft (0.9m) 18s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright, let’s talk about Oceanside Harbor. It’s been a bit of a flat spell, and to be honest, the next week and a half or so isn't looking like much of a party. We've got a long stretch of small, messy surf with onshore winds messing things up. The water is way warmer than normal for this time of year, sitting at 77°F with a big +9°F anomaly, so you won't need a thick suit, but you will need patience.
The first few days, from Tuesday the 4th through Thursday the 6th, are pretty dead. We're looking at tiny 2ft to 2ft swells from the southwest with light but onshore breezes. The energy is weak, with values around 160 to 205, and the waves are just poor. Not worth paddling out for unless you're desperate to get wet.
Friday the 7th shows a glimmer of hope with the swell period jumping to 19 seconds and the energy climbing to 447, but the swell height is still small at 2ft. Saturday the 8th has a bit more size at 3ft, but the period drops and the cross-onshore wind makes it choppy. It's still a poor surf forecast. Sunday the 9th and Monday the 10th are similar, with small SSW swell and not much push. The energy is moderate, but the waves are just weak.
The middle of the week from the 11th to the 13th is more of the same. Small southwest swells, 2ft to 2ft, with periods hanging around 13 to 18 seconds. The energy is moderate, but it's not translating into anything rideable. The wind is mostly onshore, which is killing any chance of a clean face.
Then things start to pick up a little. Friday the 14th sees the energy jump to 592, and Saturday the 15th brings the swell up to 4ft from the SSW. That's a bit more size, but the period is a short 16 seconds, and the wind is cross-onshore. It's still only marginal, with questionable tide conditions. The combined energy is strong on the 14th and 15th (795 and 740), which is a sign there's power in the water, but the direction and wind are just not working for this spot.
After that, from Sunday the 16th through Wednesday the 19th, it fades back down. Swell drops back to 2ft to 3ft, with periods around 14 to 16 seconds. The wind stays cross-onshore, keeping things chopped up. There's a lot of moderate energy in the water, but it's all just messy and unorganized.
So, what's the call? Honestly, there's no standout day in this 16-day window. The best we get is that bump on the 14th and 15th, but with the wind and short period, it's not going to be worth fighting the crowds for. This harbor break needs a lot more size and better conditions to get good. For now, maybe keep the board in the car and wait for the next proper swell. It's been a bit of a dud, but that can change. Forecasts are better for the near term, so the outlook for next week is promising but less certain.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Thu morning, min 19°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Fri morning, min 21°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 18 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 20 | SW 19 |
Wave Graph | |||||||||||||||||||||
116 | 107 | 104 | 162 | 127 | 160 | 113 | 114 | 126 | 329 | 243 | 348 | 340 | 295 | 397 | 309 | 305 | 297 | 207 | 186 | 184 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross-on | on | on | cross-on |
High Tide | 1:39PM1.90m | 2:08AM1.31m | 2:31PM1.95m | 4:24AM1.20m | 3:37PM2.01m | 6:47AM1.26m | 4:52PM2.11m | 7:50AM1.38m | 6:02PM2.23m | 8:30AM1.50m | 7:02PM2.36m | 9:05AM1.60m | 7:56PM2.46m | ||||||||
Low Tide | 8:38PM0.85m | 7:19AM0.94m | 10:16PM0.74m | 8:03AM1.09m | 11:46PM0.55m | 9:34AM1.20m | 00:52AM0.34m | 11:21AM1.22m | 1:44AM0.15m | 12:40PM1.15m | 2:29AM0.02m | 1:40PM1.04m | 3:10AM-0.06m | ||||||||
6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 7:45 | — | — | 7:45 | — | — | 7:44 | — | — | 7:44 | — | — | 7:43 | — | — | 7:42 | — | — | 7:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 22 | 22 | 21 | 23 | 23 | 22 | 24 | 24 | 22 | 24 | 24 | 22 | 24 | 24 | 22 | 24 | 24 | 22 |
Feels °C | 23 | 22 | 21 | 23 | 22 | 22 | 24 | 23 | 23 | 25 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SW 13 | SSW 19 | SSW 13 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
116 | 107 | 104 | 162 | 127 | 160 | 113 | 114 | 84 | 329 | 111 | 348 | 340 | 295 | 397 | 309 | 305 | 297 | 207 | 139 | 137 | |
Swell 2 Height (m) Direction Period (s) | W 6 | SW 12 | W 5 | W 5 | SW 12 | W 4 | W 5 | SSW 20 | SSW 18 | SSW 13 | SSW 19 | SW 12 | SW 12 | SW 12 | SW 12 | W 4 | SW 11 | SW 11 | SW 20 | SW 20 | SW 19 |
9 | 36 | 8 | 7 | 34 | 4 | 8 | 79 | 126 | 114 | 243 | 124 | 69 | 114 | 118 | 3 | 42 | 42 | 106 | 186 | 184 | |
Swell 3 Height (m) Direction Period (s) | SW 12 | S 10 | SW 12 | S 9 | S 9 | S 9 | S 12 | W 13 | W 5 | W 5 | W 12 | W 15 | S 9 | W 12 | W 13 | W 13 | SW 21 | SW 21 | SSW 11 | SW 16 | W 12 |
35 | 18 | 40 | 6 | 6 | 6 | 25 | 4 | 4 | 4 | 3 | 4 | 6 | 11 | 3 | 13 | 72 | 71 | 12 | 39 | 25 | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | W 5 | — | — | W 5 | — | — | W 5 | — | W 4 | — | — | — | — | — | — | — | — |
— | 9 | — | — | 8 | — | — | 8 | — | — | 4 | — | 3 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 68 | 108 | 68 | 0 | 68 | 68 | 0 | 108 | 116 | 46 | 46 | 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.











