Surf Forecasts:
Californias surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 12AM (local time) - 4ft (1.2m), 7s period, E swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 12PM (local time) - 5ft (1.5m), 6s period, E swell with 170 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 12AM (local time) - 4ft (1.2m), 7s period with E swell.
Best Forecast Surf Conditions for Californias this week:
The surf forecast for Californias over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 12AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.2m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Californias in the next 16 days are 1.5m 6s and forecast to arrive on Wednesday (Aug 19) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Thursday (Aug 20) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 19th Aug) | 4ft (1.2m) 7s |
| Best Surf | 12AM (Wed 19th Aug) | 4ft (1.2m) 7s |
| Most Powerful | 12PM (Wed 19th Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Californias over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew on what Californias has cooked up for us.
The next week or so is pretty dead. We’re looking at a long gap with no surf worth paddling out for, and the water's sitting at a normal 84°F, so nothing weird there.
The first sign of life comes on Friday the 28th of August in the afternoon. We get a clean 6ft swell from the NNE, but with a short period of 6 seconds and middling energy. It's surfable, but nothing to write home about. The real action kicks off on Saturday the 29th of August. The morning goes glassy with a clean 8ft swell from the NE (period 8 seconds, energy 803), and by the afternoon, it boosts to a solid 12ft from the ENE, with a groundswell period of 11 seconds and a massive energy reading of 2918. That’s serious power. The wind is clean and cross-offshore, setting up excellent conditions. This is strictly for the experts – 12ft on a reef is no joke. The swell holds through Sunday the 30th with similar 12ft sets and clean offshore winds, making it the best stretch of the forecast.
After that, it falls flat again by Monday the 31st. There’s a small window on Wednesday the 2nd of September with a 5ft ENE swell (9 seconds, 318 energy), but it's a major step down. So, the bottom line: the first week is a bust, but the 29th and 30th of August are your true standouts. If you're experienced and patient, that's the weekend to be in the water.
Rusty.
Short Range ForecastHeavy rain (total 52mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 26°C on Thu afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 139mm), heaviest during Sat night. Warm (max 28°C on Mon morning, min 25°C on Fri afternoon). Winds decreasing (fresh winds from the SW on Fri night, calm by Sat afternoon). | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 9 | E 7 | E 5 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 7 | S 9 | E 14 | ENE 9 | ENE 9 | E 16 | E 13 | E 13 | E 10 | ENE 11 | ENE 10 | E 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 123 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 8 | 15 | 5 | 14 | 14 | 8 | 11 | 10 | 12 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:36PM2.01m | 11:19AM1.67m | 11:07PM1.91m | 12:19PM1.50m | 11:42PM1.80m | 2:15PM1.40m | 00:33AM1.69m | 5:17PM1.48m | 2:15AM1.61m | 6:02PM1.61m | 4:01AM1.63m | 6:26PM1.73m | ||||||||
Low Tide | 4:28PM0.80m | 5:13AM0.66m | 4:55PM0.98m | 6:04AM0.75m | 5:24PM1.15m | 7:13AM0.83m | 6:02PM1.32m | 8:53AM0.84m | 8:41PM1.43m | 10:25AM0.77m | 11:03PM1.37m | 11:21AM0.66m | 11:53PM1.25m | |||||||
 |  |  | | | | | | | | |  | | | | |  | |  |  | |
 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — |
mm | — | 1 | 3 | 3 | 2 | 1 | 7 | 22 | 13 | 30 | 19 | 10 | 16 | 58 | 5 | 1 | — | — | — | — |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 26 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 30 | 29 | 29 | 29 | 28 | 30 | 28 | 31 | 29 | 28 | 30 | 31 | 26 | 29 | 27 | 27 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | S 10 | S 10 | S 9 | S 9 | S 9 | ESE 10 | E 8 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 10 | SSW 8 |
| kJ | 36 | 36 | 19 | 11 | 11 | 66 | 65 | 106 | 123 | 125 | 18 | 1 | 566 | 222 | 369 | 442 | 200 | 112 | 115 | 150 |
Swell 2 Height (m) Direction Period (s) | S 7 | E 10 | S 8 | S 8 | SSW 8 | SW 9 | SW 9 | SW 9 | SW 10 | SW 10 | E 14 | ENE 9 | SE 9 | E 13 | E 13 | ENE 10 | E 10 | W 8 | W 7 | ENE 10 |
| kJ | 4 | 7 | 1 | 5 | 7 | 12 | 13 | 12 | 36 | 133 | 4 | 8 | 42 | 4 | 14 | 10 | 8 | 5 | 4 | 9 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 11 | — | — | — | — | — | — | — | ESE 10 | E 14 | E 14 | ENE 9 | E 16 | E 13 | E 13 | SE 11 | ENE 11 | ENE 10 | E 12 |
| kJ | 4 | 4 | — | — | — | — | — | — | — | 9 | 4 | 4 | 15 | 5 | 14 | 14 | 5 | 11 | 10 | 12 |
Wind waves Height (m) Direction Period (s) | E 4 | E 7 | E 5 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 7 | ESE 6 | SSW 9 | S 9 | SSE 7 | S 9 | SSE 9 | S 9 | SSE 8 | SSE 8 | SSE 8 | SE 4 |
| kJ | 48 | 123 | 104 | 219 | 318 | 323 | 605 | 322 | 173 | 33 | 579 | 1126 | 154 | 741 | 463 | 554 | 306 | 277 | 170 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1020 | 0 | 657 | 793 | 601 | 657 | 733 | 601 | 4 | 4 | 601 | 657 | 0 | 609 | 4 | 609 | 609 | 601 | 4 | 4 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Californias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Californias Surf forecast
The above surf forecast table for Californias provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Californias can be found by selecting the local surf guide option on the grey menu. Our Californias 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 (Californias) 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 Californias 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.
Californias is 5 km (3 miles) from Misato. If you plan a holiday in Okinawa, look for hotels and other accommodation in Misato. Misato has rooms for a wide range of budgets as well as car hire and transport links.
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