Surf Forecasts:
Californias surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 12PM (local time) - 3.5ft (1.1m), 8s period, E swell with offshore winds.
- Most powerful swell: Friday 4 Sep, 9AM (local time) - 4.5ft (1.3m), 9s period, WNW swell with 258 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 12PM (local time) - 3.5ft (1.1m), 8s 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 Monday (Aug 31) at 12PM. The primary swell is predicted to be 1.1m and 8s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Californias in the next 16 days are 1.3m 9s and forecast to arrive on Friday (Sep 04) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Thursday (Sep 03) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 31st Aug) | 3.5ft (1.1m) 8s |
| Best Surf | 12PM (Mon 31st Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 9AM (Fri 4th Sep) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Californias over the next 16 days.
The Lowdown
Alright, let’s break down Californias in feet and miles per hour. Water temp is a warm 83°, totally normal for the season. For the first few days, from Sunday, August 30th, through the start of September, it’s basically flat. The swell is a pathetic 0.7ft with a long 12-second period on Sunday, but the combined energy is a measly 14. Wind is a moderate cross-offshore, so it’s clean glass, but you’d be floating. It’s “poor surf conditions” every day – small and weak.
Come Wednesday afternoon, September 2nd, there’s a bump to 4ft but with a short 8-second period, and a fresh cross-shore wind makes it a lumpy, choppy mess. Not your wave.
The one to watch is Wednesday, September 9th. That’s where it goes off. The swell jumps to a solid 12ft from the NW with an 11-second period. The combined energy is a massive 3352 – that’s a powerful, strong swell. The wind is offshore from the ENE in the morning at 12 mph, switching to NE at 12 mph in the afternoon, giving you clean, offshore conditions. This is a true groundswell on a reef, so expect long, lined-up, high-performance waves. At 12ft, it’s for experts only. The file says it’s “excellent for experienced surfers,” and that’s the truth. It’s your standout session.
Thursday, September 10th, still has some juice at 8ft and 1320 energy with clean cross-offshore wind, but it’s a step down from the 9th. After that, it gets ugly. A near-gale on Friday the 11th with 34 mph winds, then a violent storm on Saturday the 12th with 68 mph winds. That’s a no-go zone. The final days from the 13th onward are blown-out, onshore slop under 3ft. Not worth paddling out.
So, one clear winner: the 9th of September. Flat start, epic middle, dangerous finish. That’s the window.
Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Tue morning. Warm (max 29°C on Sun afternoon, min 26°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Wed night. Warm (max 29°C on Fri morning, min 26°C on Wed morning). Winds decreasing (fresh winds from the SSE on Wed night, light winds from the ESE by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 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) | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ESE 8 | E 15 | E 15 | E 14 | SSW 11 | E 8 | E 8 | E 8 | W 10 | W 9 | WNW 9 | WNW 8 | WNW 7 | WNW 6 | NW 7 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 14 | 13 | 12 | 12 | 0 | 4 | 18 | 16 | 0 | 167 | 86 | 44 | 18 | 196 | 258 | 167 | 60 | 48 | 104 | 153 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 8:39PM2.14m | 8:52AM2.18m | 9:06PM2.15m | 9:32AM2.11m | 9:36PM2.12m | 10:17AM1.97m | 10:08PM2.07m | 11:11AM1.79m | 10:46PM1.98m | 12:27PM1.61m | 11:36PM1.86m | 2:36PM1.53m | 1:00AM1.75m | ||||||||
Low Tide | 2:31PM0.39m | 2:45AM0.47m | 3:01PM0.49m | 3:20AM0.42m | 3:33PM0.63m | 4:00AM0.41m | 4:07PM0.80m | 4:48AM0.46m | 4:45PM1.00m | 5:47AM0.54m | 5:33PM1.19m | 7:11AM0.62m | 7:06PM1.35m | ||||||||
 | |  | | |  |  | | | | | | | | | | | | | |  | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | — | 5 | 8 | 1 | 12 | 7 | 5 | 14 | 4 | 3 | 1 | 1 | — | — | — | — | — |
Temp °C | 28 | 29 | 27 | 28 | 28 | 27 | 28 | 29 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 27 |
Feels °C | 31 | 31 | 29 | 29 | 29 | 28 | 32 | 32 | 30 | 28 | 28 | 27 | 30 | 30 | 30 | 32 | 32 | 31 | 33 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | S 9 | SSW 9 | S 9 | S 9 | S 9 | SW 9 | SW 10 | SSW 12 | SSW 11 | SSW 11 | E 8 | E 8 | E 8 | SW 10 | SW 11 | WNW 9 | WNW 8 | SSW 9 | WNW 6 | NW 7 | NW 8 |
| kJ | 76 | 82 | 54 | 40 | 39 | 27 | 48 | 605 | 894 | 687 | 167 | 86 | 44 | 611 | 808 | 258 | 167 | 138 | 48 | 104 | 153 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 8 | SW 8 | SW 9 | SW 10 | SSW 9 | SSW 8 | E 15 | ESE 9 | — | E 12 | — | E 11 | W 10 | S 9 | SW 10 | S 10 | WNW 7 | SSW 9 | S 8 | SE 13 |
| kJ | 59 | 35 | 44 | 40 | 33 | 25 | 7 | 4 | 243 | — | 12 | — | 10 | 18 | 251 | 270 | 240 | 60 | 82 | 50 | 132 |
Swell 3 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | S 8 | E 15 | E 15 | E 14 | — | — | — | E 11 | E 11 | W 9 | S 11 | SW 10 | SW 10 | E 10 | SE 16 | S 8 |
| kJ | 14 | 14 | 13 | 12 | 12 | 10 | 4 | 18 | 16 | — | — | — | 37 | 10 | 196 | 277 | 63 | 35 | 29 | 66 | 33 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | E 4 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | — | ESE 7 | SSW 11 | SSW 11 | SSW 11 | SSE 7 | — | — | — | — | — | — | — |
| kJ | 56 | 59 | 76 | 36 | 212 | 547 | 471 | 404 | — | 433 | 1447 | 1658 | 1503 | 498 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 0 | 733 | 609 | 4 | 35 | 601 | 622 | 601 | 601 | 601 | 601 | 11 | 11 | 4 | 3 | 0 | 32 |
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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