Surf Forecasts:
Oceanside Harbor surf forecast from 17 Jul 2026:
- Best quality surf: Thursday 23 Jul, 2AM (local time) - 6ft (1.8m), 15s period, S swell with glassy winds.
- Most powerful swell: Thursday 23 Jul, 2AM (local time) - 6ft (1.8m), 15s period, S swell with 1,415 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 8PM (local time) - 2ft (0.6m), 18s 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 Saturday (Jul 18) at 8PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.6m and 11s. 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 1.8m 15s and forecast to arrive on Thursday (Jul 23) at 2AM. 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+) | 8PM (Sat 18th Jul) | 2ft (0.6m) 18s |
| Best Surf | 2AM (Thu 23rd Jul) | 6ft (1.8m) 15s |
| Most Powerful | 2AM (Thu 23rd Jul) | 6ft (1.8m) 15s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
G’day, Rusty here, lookin’ at the local stretch for the next couple of weeks. Honestly, it’s a bit of a slow burner this time around. We’ve got a run of days where it’s just not worth paddling out, and the real action doesn’t start to show its face until we’re well into next week. The water’s sitting at a very warm 72°, which is way above what we’d normally see for this time of year – feels more like a tropical bath than the usual summer mix.
The first few days from Thursday the 16th right through to the end of next week are pretty much a write-off. The swell is tiny, the wind is coming from the wrong way, and it’s just messy. Then, from the 21st onwards, we start to see a bit more energy, but it’s still mixed with poor conditions. The real lift comes on the 23rd of July, Thursday. That morning, we’re looking at a solid 6ft swell from the south, with a period of 14 seconds pushing a moderate wave energy of 1230. The wind swings light cross-onshore, which means there’ll be some texture, but it’s manageable. The afternoon cleans up even more with a light offshore blowing from the southwest. That’s the best window for a paddle.
For the standout, you’ve got to be at Oceanside Harbor (beach/jetty) on Thursday the 23rd and into Friday the 24th morning. The swell is coming from the south, around 5ft to 6ft, with a period of 13 to 14 seconds. That’s a solid groundswell, so the waves will have some punch and shape, but it’s also a long period, which can make it break a bit fat on a beach break. The jetty will help line it up. The wind is light and offshore, so the faces will be clean. Keep in mind the crowds can be thick here, so get in early. It’s a bit too big for beginners, but for the experienced crew, this is the pick of the fortnight.
The following weekend, the 25th and 26th, still has some decent energy with 5ft to 6ft swell, but the wind stays onshore or light cross, so it’s a step down in quality. The very end of the month into the 31st has a bit of a boost in size again, but the wind turns more cross-onshore, so it’s a gamble.
Overall, it’s a long wait with a few days of nothing, but that Thursday the 23rd and Friday the 24th are the ones to circle. The rest is just marginal.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 20°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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 16 | SW 19 | SW 19 | SW 18 | SW 15 | SW 18 | SW 18 | SW 16 | SW 17 | S 12 | S 12 | SSW 15 | SW 16 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 15 | S 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 122 | 125 | 181 | 103 | 136 | 366 | 379 | 127 | 405 | 513 | 409 | 398 | 551 | 447 | 519 | 474 | 474 | 334 | 538 | 1415 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | glassy | on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy |
High Tide | 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 | 5:50AM1.24m | 4:47PM1.90m | ||||||||
Low Tide | 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 | 11:35PM0.77m | 9:32AM1.13m | 00:43AM0.64m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 7:59 | — | — | 7:59 | — | — | 7:58 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 22 | 22 | 21 | 22 | 22 | 20 | 23 | 23 | 20 | 23 | 23 | 22 | 25 | 25 | 23 | 23 | 23 | 21 |
Feels °C | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 21 | 23 | 22 | 23 | 23 | 22 | 23 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 7 | W 7 | SW 15 | SW 18 | SW 18 | S 11 | S 13 | S 12 | S 12 | S 11 | SW 16 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 15 | S 15 |
| kJ | 44 | 45 | 39 | 39 | 136 | 366 | 379 | 84 | 326 | 513 | 409 | 319 | 551 | 447 | 519 | 474 | 474 | 334 | 538 | 1415 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 19 | SW 14 | WSW 7 | S 12 | S 12 | SW 16 | SW 17 | SW 17 | SSW 15 | SSW 15 | S 11 | SSW 16 | SSW 10 | SSW 9 | SSW 8 | S 17 | SSW 14 | WSW 6 |
| kJ | 122 | 107 | 181 | 103 | 15 | 69 | 67 | 127 | 405 | 410 | 398 | 398 | 235 | 334 | 128 | 86 | 47 | 268 | 325 | 50 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 19 | SW 14 | SW 18 | S 12 | W 6 | W 6 | S 14 | W 6 | W 6 | W 5 | W 5 | SSW 20 | W 4 | SW 12 | SW 12 | SSE 15 | S 14 | SW 7 | SW 19 |
| kJ | 47 | 125 | 74 | 83 | 25 | 13 | 12 | 60 | 7 | 12 | 5 | 9 | 75 | 3 | 35 | 66 | 71 | 96 | 25 | 131 |
Wind waves Height (m) Direction Period (s) | — | S 3 | — | — | — | — | — | — | — | — | — | — | W 5 | — | — | W 4 | WNW 4 | WNW 4 | W 4 | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | 5 | — | — | 5 | 3 | 5 | 16 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 98 | 9 | 108 | 108 | 9 | 46 | 171 | 0 | 98 | 68 | 9 | 68 | 68 | 0 | 68 | 68 | 32 | 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.
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