
Surf Forecasts:
Oceanside Harbor surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 30 Jul, 8AM (local time) - 3ft (0.9m), 15s 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, 8AM (local time) - 3ft (0.9m), 15s 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 8AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 1.0m 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 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+) | 8AM (Thu 30th Jul) | 3ft (0.9m) 15s |
| Best Surf | 8AM (Thu 30th Jul) | 3ft (0.9m) 15s |
| 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, Rusty here. Let’s talk about what’s coming up for Oceanside Harbor.
To be straight with you, this isn’t a stretch for getting amped about. The next couple weeks are looking flat and weak. The swell energy is low, readings are mostly in the 100–200 range, peaking around 700–800 only on the first couple days, but the quality is shot with onshore or cross-onshore winds. The waves are small, and the tide or conditions never click into something you’d want to paddle out for until maybe the very tail end of the outlook.
Oceanside Harbor is a beach and jetty setup, exposed to the west. The water temp is sitting right around average for this time of year—nothing unusual there. The first half of the run is between 30 July and 5 August, with Thursday morning 30 July offering the best energy at 3ft swell from the SSW, period a long 15 seconds, but the wind is WSW at 6 mph, cross-on, and the energy is 798, which is moderate. But the report flags marginal conditions with poor tide, and that cross-on wind messes up the face. It just doesn’t clean up. Friday 31 July morning sees a bump to 4ft from the south, period 14 seconds, energy 706, but again the W wind at 9 mph is cross-on and choppy. After that, things just dribble off. From Saturday 1 August all the way through Monday 4 August, we’re looking at waves under 2ft, energy levels falling into the double digits and low triple digits. Wind stays on or cross-on the whole time. The swell is from SSW or SW, but there’s no push.
After 5 August, we get a tiny lift. On Friday 7 August morning, a long-period swell from the SSW arrives at 2ft but with a period of 19 seconds—very long period, groundswell—energy at 332, so weak, but those long lines tend to wrap around more at jetty and reef setups. But the wind is still cross-on WSW at 6 mph. The next day Saturday 8 August morning, we see 3ft from the SSW, period 18 seconds, energy 445, but onshore SW wind is marginal. That pattern holds through Monday 10 August, when the morning shows 3ft from the SSW, 14-second period, energy 350, with light onshore SW wind. Still not clean.
The one true standout that might be worth a look if you’re desperate is Sunday morning 9 August. The swell is 3ft from the SSW, period 15 seconds, energy 348. The wind is light and onshore from the SW at 6 mph. It’s not glassy, but it’s the largest leftover of the fading swell before it drops again. But honestly, the score and wave comments all say poor or marginal. There’s nothing in this run that shouts “go.”
After 10 August, it gets even worse. Monday 10 August afternoon sees the swell drop to 2ft from the SW with a 20-second period, which is absurdly long for such a tiny wave—energy only 382. Then the rest of the way into 14 August, waves hover around 2ft to 3ft, with all conditions poor. The wind is light but cross-on or onshore. Even the longer period swells can’t save it because the energy is too weak.
So here’s the bottom line: there’s no good surf at Oceanside Harbor in this 16-day window. The only days that remotely come close are Thursday 30 July and Friday 31 July, but they’re let down by cross-onshore wind and marginal tides. After that, it’s a long dry spell. For a break that’s usually very consistent, this is a quiet period. Forecasts can always change, but as it stands, leave the board at home and go do something else.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Sat morning, min 20°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun morning, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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) | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 | S 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
348 | 468 | 674 | 588 | 322 | 265 | 249 | 289 | 119 | 73 | 88 | 83 | 82 | 91 | 91 | 84 | 77 | 75 | 162 | 71 | 125 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | on | glassy | on | on | cross-on | on | on | cross-on | on | on | cross-on | on | cross-on | glassy |
High Tide | 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 | 2:31PM1.95m | 4:24AM1.20m | |||||||
Low Tide | 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 | 7:19AM0.94m | 10:16PM0.74m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | |
— | 7:50 | — | — | 7:50 | — | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 21 | 23 | 24 | 22 | 25 | 25 | 23 | 24 | 24 | 22 | 24 | 24 | 21 | 23 | 23 | 22 | 24 | 23 | 21 |
Feels °C | 22 | 23 | 22 | 23 | 24 | 23 | 26 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 22 | 23 | 23 | 24 | 25 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | S 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 10 | W 7 | W 7 | W 7 | W 7 | W 7 | W 6 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
348 | 468 | 674 | 588 | 322 | 265 | 249 | 289 | 75 | 35 | 38 | 37 | 31 | 31 | 19 | 84 | 77 | 75 | 162 | 71 | 125 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | W 6 | S 9 | S 11 | S 10 | W 7 | W 7 | S 13 | S 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | W 6 | W 6 | W 6 | W 6 | SW 12 | W 6 |
276 | 202 | 5 | 44 | 146 | 69 | 34 | 33 | 119 | 73 | 88 | 83 | 82 | 83 | 39 | 11 | 11 | 11 | 6 | 34 | 6 | |
Swell 3 Height (m) Direction Period (s) | S 16 | W 9 | — | W 7 | W 7 | W 7 | S 9 | SW 15 | W 7 | SSW 9 | SSW 9 | SSW 12 | SSW 11 | SW 16 | SW 16 | SW 12 | SW 12 | SW 13 | S 9 | S 9 | S 9 |
174 | 2 | — | 15 | 21 | 14 | 42 | 76 | 22 | 47 | 30 | 46 | 23 | 91 | 91 | 22 | 36 | 40 | 6 | 6 | 6 | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — |
— | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 68 | 68 | 0 | 68 | 68 | 0 | 68 | 68 | 0 | 108 | 68 | 17 | 98 | 171 | 4 | 108 | 108 | 17 | 108 | 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.











