
Surf Forecasts:
Oceanside Harbor surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 30 Jul, 2AM (local time) - 3.5ft (1.1m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 30 Jul, 11PM (local time) - 4.5ft (1.4m), 14s period, S swell with 813 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 2AM (local time) - 3.5ft (1.1m), 16s 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 Thursday (Jul 30) at 2AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.9m and 15s. 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 1.4m 14s and forecast to arrive on Thursday (Jul 30) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 9s period and expected on Friday (Jul 31) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 30th Jul) | 3.5ft (1.1m) 16s |
| Best Surf | 2AM (Thu 30th Jul) | 3.5ft (1.1m) 16s |
| Most Powerful | 11PM (Thu 30th Jul) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on the menu for Oceanside Harbor over the next couple of weeks.
Honestly, it’s a pretty flat and quiet stretch ahead. The water is sitting at 75°, which is much warmer than normal for this time of year – feels like a bathtub out there.
The first bit of surf we see is on Wednesday afternoon, July 29th. We’ve got a long-period SSW groundswell pushing in at 4 ft, with a 16-second period. That long period means the waves will have some real energy, but at a beach/jetty setup like this, it can make things a bit too straight. The combined energy is strong, reading 1016. Winds are light and cross-onshore, so it’ll be a bit bumpy. This is really only for the advanced crew.
Thursday the 30th sees a drop in size. Morning starts with 3 ft from the SSW, with a light offshore wind – that’s a major positive, meaning clean conditions. The energy drops to 798. The afternoon bumps up slightly to 3 ft but the wind swings cross-onshore, making it choppy. It’s marginal at best.
Friday the 31st is more of the same: 4 ft in the morning with a light cross-onshore breeze, fading to 3 ft in the afternoon. By Saturday, August 1st, we’re down to tiny 2 ft waves with poor conditions. From there, the next week is a real struggle. From August 1st through August 13th, the swell barely gets above 3 ft, with most days seeing 1 ft to 2 ft. The combined energy values are mostly in the low 100s to mid-400s, which is weak to moderate at best. Winds are generally light, but the direction is often onshore or cross-onshore, keeping things messy.
There are a couple of flickers of hope. On Friday, August 7th, we see a 19-second period swell, but it’s only 2 ft – all that long-period energy (410) but no real height to work with. Then on Monday, August 10th, the afternoon shows a 20-second period at 2 ft, but it’s a similar story. It’s just not enough to get excited about.
The standout, if you can call it that, is the very first window on Wednesday afternoon, July 29th. That 4 ft at 16 seconds is the biggest and most energetic swell of the entire run. But with the cross-onshore wind and the advanced-only nature of the break, it’s not a session for the masses. The crowds are often there, so expect company.
Overall, it’s a lean 16 days. The best bet is to keep an eye on the forecast, because this kind of flat spell can’t last forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sat morning, min 19°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sat afternoon, min 21°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 16 | SSW 16 | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph | ||||||||||||||||||||
724 | 596 | 348 | 468 | 674 | 596 | 322 | 261 | 131 | 106 | 129 | 89 | 88 | 83 | 82 | 91 | 91 | 84 | 77 | 75 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | on | cross-on | on | on | cross-on | on | on | glassy | on | on | glassy |
High Tide | 9:37PM2.24m | 11:08AM1.64m | 10:10PM2.18m | 11:34AM1.68m | 10:43PM2.07m | 12:00PM1.73m | 11:19PM1.91m | 12:28PM1.79m | 00:00AM1.72m | 1:00PM1.85m | 00:51AM1.51m | 1:39PM1.90m | 2:08AM1.31m | |||||||
Low Tide | 3:28PM1.03m | 4:43AM0.21m | 4:04PM0.99m | 5:09AM0.27m | 4:43PM0.97m | 5:34AM0.36m | 5:26PM0.95m | 5:58AM0.49m | 6:16PM0.93m | 6:22AM0.63m | 7:18PM0.90m | 6:48AM0.78m | 8:38PM0.85m | |||||||
— | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
7:51 | — | — | 7:50 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 23 | 23 | 21 | 24 | 24 | 23 | 25 | 25 | 22 | 24 | 24 | 22 | 24 | 23 | 21 | 24 | 23 | 22 |
Feels °C | 22 | 21 | 24 | 23 | 22 | 24 | 24 | 25 | 26 | 25 | 24 | 25 | 24 | 24 | 25 | 23 | 23 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 13 | W 7 | W 8 | W 7 | W 6 | W 7 | W 6 | SW 15 | SW 15 | SW 15 |
724 | 596 | 348 | 468 | 674 | 596 | 322 | 261 | 131 | 106 | 129 | 48 | 41 | 37 | 30 | 31 | 21 | 84 | 77 | 75 | |
Swell 2 Height (m) Direction Period (s) | S 15 | S 15 | S 13 | S 13 | W 7 | S 9 | S 11 | S 10 | W 7 | W 7 | W 7 | SW 14 | S 12 | SW 13 | SW 13 | SW 13 | SW 16 | W 6 | W 6 | W 6 |
272 | 343 | 276 | 202 | 14 | 44 | 146 | 69 | 47 | 35 | 22 | 89 | 75 | 83 | 82 | 82 | 91 | 12 | 12 | 12 | |
Swell 3 Height (m) Direction Period (s) | W 6 | W 6 | S 16 | W 7 | — | W 7 | W 7 | W 7 | S 9 | SW 14 | SSW 9 | SSW 9 | SW 13 | SSW 12 | SSW 11 | SW 16 | SW 12 | SW 12 | SW 12 | SW 13 |
20 | 12 | 174 | 22 | — | 15 | 22 | 14 | 61 | 91 | 49 | 46 | 88 | 46 | 23 | 91 | 39 | 22 | 36 | 40 | |
Wind waves Height (m) Direction Period (s) | — | — | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 8 | 46 | 68 | 4 | 68 | 68 | 0 | 98 | 226 | 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.










