Surf Forecasts:
Oceanside Harbor surf forecast from 12 Jul 2026:
- Best quality surf: Saturday 18 Jul, 5AM (local time) - 3.5ft (1.1m), 17s period, S swell with glassy winds.
- Most powerful swell: Saturday 18 Jul, 11AM (local time) - 5ft (1.5m), 16s period, S swell with 1,121 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 8AM (local time) - 3.5ft (1.0m), 14s 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 Sunday (Jul 12) at 8AM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.3m and 18s. 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 1.5m 16s and forecast to arrive on Saturday (Jul 18) 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+) | 8AM (Sun 12th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 5AM (Sat 18th Jul) | 3.5ft (1.1m) 17s |
| Most Powerful | 11AM (Sat 18th Jul) | 5ft (1.5m) 16s |
Table - best surf conditions forecast for Oceanside Harbor over the next 16 days.
Alright, listen up, crew. Rusty here.
Let’s be real: the next week and a half at Oceanside Harbor is going to be a grind. We’ve got next to no swell and the wind is mostly trashy. Look, if it stays this gutless and windy, this exposed beach/jetty setup is going to look a lot more fun for kite surfing than for paddling a surfboard. The wave energy is weak, barely breaking into triple digits on the combined scale.
Starting this Sunday, July 12th, and Monday, the 13th, we’ve got tiny 3ft swell from the SSW, but it’s onshore or cross-onshore and the conditions are just poor. From Tuesday the 14th through Friday the 17th, it gets even smaller – we’re talking 1ft to 2ft junk. Wind’s still no good. Total blank.
There’s a pulse on Saturday, July 18th, where the swell bumps to 5ft from the south, with energy hitting 1538 (moderate). But don’t get your hopes up. The wind is onshore in the morning and a moderate cross-onshore in the afternoon, making it choppy. For beginners, 5ft is a bit much, and at a beach break with a long 16-second period groundswell, the waves might be a bit straight and walled up.
From July 19th to the 23rd, we’re back to small surf – 3ft to 3ft – and it’s cross-onshore wind almost every day. It’s just messy.
The best shot we’ve got is on Saturday, July 25th, and Sunday, July 26th. That’s a way off, so think of it as promising but not locked in. On the 25th, we see 3ft to 4ft swell with a very long 21-second period from the SW in the morning, and a 14-second S swell in the afternoon. Combined energy is solid at 1216 and 1183. The morning has light cross-onshore wind, but the afternoon looks like it turns offshore – that’s a big plus for clean waves. Sunday the 26th keeps the momentum with 4ft SW swell and a long 20-second period, and the wind looks light offshore. That weekend is the only real window where the stars might align for a quality session here.
Bottom line: this is a rough forecast for Oceanside Harbor. A long dry spell, then one potential go at the end of the month. It’s a quiet stretch, but forecasts can change, and it usually doesn’t stay this flat for too long.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 18°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri morning. Warm (max 25°C on Wed afternoon, min 21°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||
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) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 19 | SW 19 | SW 18 | S 18 | S 16 | S 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 236 | 316 | 352 | 303 | 312 | 187 | 213 | 123 | 111 | 194 | 107 | 96 | 161 | 122 | 122 | 125 | 181 | 83 | 498 | 1121 | 881 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | glassy | on | cross-on | cross | on | cross-on |
High Tide | 9:18AM1.52m | 7:59PM2.53m | 10:02AM1.59m | 8:50PM2.58m | 10:44AM1.65m | 9:40PM2.56m | 11:25AM1.71m | 10:28PM2.45m | 12:07PM1.76m | 11:16PM2.26m | 12:48PM1.80m | 00:05AM2.01m | 1:31PM1.84m | ||||||||
Low Tide | 2:39AM0.01m | 1:34PM1.09m | 3:26AM-0.11m | 2:30PM1.03m | 4:11AM-0.15m | 3:24PM0.98m | 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 | |||||||
 |  | |  | | | | | |  | | | | | |  |  | | | | | |
 | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — |
 | 8:00 | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 7:59 | — | — | 7:59 | — | — | 7:59 | — | — | 7:58 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — |
Temp °C | 19 | 21 | 21 | 20 | 22 | 23 | 21 | 23 | 23 | 22 | 24 | 25 | 24 | 24 | 24 | 23 | 24 | 23 | 22 | 24 | 24 |
Feels °C | 20 | 21 | 20 | 21 | 23 | 23 | 22 | 24 | 22 | 24 | 24 | 25 | 25 | 25 | 24 | 25 | 25 | 23 | 23 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | W 7 | W 7 | W 7 | W 8 | W 8 | W 7 | W 7 | W 7 | S 18 | S 16 | S 14 |
| kJ | 236 | 316 | 352 | 303 | 312 | 187 | 213 | 123 | 93 | 133 | 31 | 34 | 47 | 98 | 76 | 37 | 39 | 38 | 498 | 1121 | 881 |
Swell 2 Height (m) Direction Period (s) | S 17 | S 15 | S 15 | SSW 14 | SW 21 | SSW 13 | SW 19 | S 12 | SW 18 | SW 18 | SSW 13 | SSW 12 | SW 16 | SW 16 | SW 16 | SW 15 | SW 19 | SW 14 | SW 15 | SW 18 | SW 18 |
| kJ | 153 | 68 | 113 | 62 | 18 | 120 | 133 | 72 | 111 | 194 | 95 | 83 | 161 | 122 | 122 | 107 | 181 | 74 | 136 | 366 | 249 |
Swell 3 Height (m) Direction Period (s) | W 5 | W 6 | SW 21 | S 16 | SW 18 | SW 19 | S 12 | SW 19 | S 12 | W 4 | SW 17 | SW 16 | S 12 | SSW 12 | SSW 12 | SW 19 | SW 14 | SW 18 | WSW 7 | WNW 16 | SW 13 |
| kJ | 5 | 2 | 17 | 46 | 12 | 59 | 25 | 58 | 47 | 3 | 107 | 96 | 73 | 48 | 47 | 125 | 74 | 83 | 15 | 51 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 9 | — | — | W 4 | W 3 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 14 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 68 | 68 | 0 | 68 | 68 | 23 | 68 | 68 | 0 | 68 | 68 | 46 | 47 | 46 | 0 | 46 | 46 | 9 | 68 | 32 |
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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