Surf Forecasts:
Oceanside Harbor surf forecast from 15 Jul 2026:
- Best quality surf: Sunday 19 Jul, 8AM (local time) - 3.5ft (1.0m), 12s period, S swell with glassy winds.
- Most powerful swell: Tuesday 21 Jul, 11AM (local time) - 4ft (1.2m), 16s period, SSW swell with 715 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 8PM (local time) - 2ft (0.6m), 16s 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 Wednesday (Jul 15) at 8PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 12s. 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 16s and forecast to arrive on Tuesday (Jul 21) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 15th Jul) | 2ft (0.6m) 16s |
| Best Surf | 8AM (Sun 19th Jul) | 3.5ft (1.0m) 12s |
| Most Powerful | 11AM (Tue 21st Jul) | 4ft (1.2m) 16s |
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 on the cards for Oceanside Harbor over the next couple of weeks.
To be honest, the first week is a bit of a struggle. We’ve got a long period groundswell from the SW, but it’s tiny. From Wednesday the 15th, we’re looking at tiny 1 ft to 2 ft swell with a period around 17 seconds. The combined energy is weak (210), so don’t get your hopes up. The wind is light and onshore, making for a frustrating session. This marginal stuff runs right through until the end of the first week. The water temp is about average for the time of year.
The real story starts to build around Saturday the 26th. That’s where we see a noticeable jump. The swell picks up to 6 ft from the SSW on Sunday the 26th morning, with a period of 14 seconds. The combined energy finally gets some legs at 1901. The wind is light and onshore (SSW at 15 mph), which is a bit of a bummer, but it’s manageable. The Sunday afternoon session looks like the best stand-out of the whole run: 6 ft SSW swell with a 12-second period, and the wind turns light offshore (SW at 6 mph). That’s clean conditions. The combined energy is still strong at 1519. This is the one to circle on the calendar. It’s a bit of a wait, but it’s the only window where the size and the wind actually line up.
The following Monday the 27th still offers some decent 4 ft swell from the SSW with a very long period of 18 seconds, and light offshore winds again. The energy is still strong (1295). The long period should mean some nice lines, but at a beach/jetty setup like this, those long gaps between sets are a caveat.
The rest of the second week sees size drop back, with the wind staying mostly cross-onshore or light, keeping things small and messy. The Thursday the 30th looks like a return to the poor conditions we saw at the start.
So, if you’re looking for a wave, the best bet is waiting for that Sunday the 26th afternoon. It’s not perfect, but it’s the only window where you’ve got some size and clean conditions. The rest is a grind.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Wed afternoon, min 20°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 19 | SW 19 | SW 18 | SW 15 | SW 18 | SW 18 | S 11 | SW 17 | SW 17 | SSW 12 | SW 16 | SW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 194 | 107 | 96 | 161 | 122 | 122 | 125 | 181 | 103 | 136 | 366 | 379 | 203 | 346 | 487 | 585 | 362 | 367 | 539 | 715 | 474 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | cross | cross-on | cross-on | glassy | on | cross-on | glassy | on | on |
High Tide | 9:40PM2.56m | 11:25AM1.71m | 10:28PM2.45m | 12:07PM1.76m | 11:16PM2.26m | 12:48PM1.80m | 00:05AM2.01m | 1:31PM1.84m | 00:59AM1.74m | 2:15PM1.86m | 2:03AM1.48m | 3:02PM1.87m | 3:37AM1.29m | 3:53PM1.88m | |||||||
Low Tide | 4:54AM-0.11m | 4:18PM0.95m | 5:36AM-0.01m | 5:13PM0.93m | 6:15AM0.16m | 6:12PM0.94m | 6:52AM0.36m | 7:18PM0.95m | 7:28AM0.58m | 8:36PM0.94m | 8:03AM0.79m | 10:06PM0.88m | 8:42AM0.98m | ||||||||
 | | |  | | |  | |  | | | | | | | | | | | | | |
 | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — |
 | 8:00 | — | 7:59 | — | — | 7:59 | — | — | 7:59 | — | — | 7:58 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 23 | 24 | 22 | 23 | 23 | 21 | 22 | 22 | 21 | 22 | 22 | 20 | 22 | 21 | 20 | 21 | 21 | 20 | 22 | 22 |
Feels °C | 20 | 24 | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 20 | 21 | 21 | 20 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SW 16 | W 7 | W 9 | WSW 8 | W 8 | SW 14 | SW 15 | SW 18 | SW 18 | S 11 | S 11 | S 11 | SSW 12 | S 11 | SW 16 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 133 | 95 | 83 | 161 | 67 | 76 | 63 | 28 | 103 | 136 | 366 | 379 | 203 | 255 | 295 | 585 | 188 | 367 | 539 | 715 | 474 |
Swell 2 Height (m) Direction Period (s) | SW 18 | W 5 | SW 16 | S 12 | SW 16 | SW 16 | SW 15 | SW 19 | W 7 | W 6 | S 12 | S 12 | SW 16 | SW 17 | SW 17 | WNW 15 | SW 16 | S 10 | S 9 | W 6 | S 9 |
| kJ | 194 | 8 | 96 | 73 | 122 | 122 | 107 | 181 | 23 | 12 | 97 | 99 | 125 | 346 | 487 | 21 | 362 | 127 | 60 | 27 | 39 |
Swell 3 Height (m) Direction Period (s) | W 4 | SW 17 | W 6 | W 7 | SSW 12 | SSW 12 | SW 19 | SW 14 | SW 18 | S 11 | WSW 6 | SW 13 | W 16 | WNW 15 | WNW 15 | S 15 | W 5 | SSW 20 | W 5 | S 14 | S 12 |
| kJ | 6 | 107 | 10 | 14 | 48 | 47 | 125 | 74 | 83 | 22 | 6 | 44 | 75 | 45 | 43 | 4 | 9 | 75 | 13 | 16 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 4 | S 4 | SSW 4 | S 4 | — | — | — | — | W 5 | — | — | W 5 | — | — | W 6 |
| kJ | — | — | — | — | — | — | 6 | 7 | 5 | 2 | — | — | — | — | 4 | — | — | 9 | — | — | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 68 | 171 | 46 | 98 | 98 | 108 | 108 | 98 | 46 | 98 | 108 | 7 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 117 |
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.
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