Californias surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 am Thursday 18 Dec 2025 JST
Forecast update in hr  min  s Forecast update imminent
Californias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Californias sea temperature is
23.9° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Californias this week:

The surf forecast for Californias over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 6PM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.6m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Californias in the next 12 days are 2.5m 9s and forecast to arrive on Thursday (Dec 25) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Dec 24) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Thu 18th Dec)2.5ft (0.8m) 6s
Best Surf 9PM (Mon 22nd Dec)7ft (2.1m) 8s
Most Powerful 9AM (Thu 25th Dec)8ft (2.5m) 9s

Table - best surf conditions forecast for Californias over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Sat morning. Warm (max 22°C on Fri morning, min 19°C on Thu morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sun morning, min 19°C on Mon morning). Winds decreasing (fresh winds from the NNE on Sun night, light winds from the NE by Tue night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
1
1
2
1
2
1
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.1
E
0.6
NW
0.9
NNW
0.7
NNW
0.5
N
0.4
NNW
0.3
NNW
0.1
NE
0.1
NE
0.2
ENE
0.3
ENE
1.5
NNW
2.4
N
2.3
N
1.9
N
1
N
1.1
N
0.8
N
0.9
NE
2.1
N
1.9
N
Period(s) (?)136776661514101089988881277
Wave
Graph
(?)Metric surfscale
Energy kJ (?)32479472113887101924095083645811114284202389389
Wind
(km/h)
20
NNE
20
NE
15
ENE
20
ESE
20
ESE
20
ESE
20
SE
15
SSE
10
SE
15
N
30
NNE
35
NNE
30
NNE
25
NE
25
NE
20
ENE
20
E
10
E
20
N
30
N
40
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffcross-
off
cross-
off
cross-
off
High Tide
/ height (m)
5:45PM
1.71
7:26AM
1.58
6:16PM
1.74
7:56AM
1.62
6:48PM
1.77
8:27AM
1.66
7:21PM
1.80
8:59AM
1.68
7:58PM
1.81
9:32AM
1.69
8:39PM
1.80
10:08AM
1.69
9:23PM
1.75
Low Tide
/ height (m)
12:08PM
0.94
12:44AM
0.17
12:42PM
0.94
1:14AM
0.10
1:15PM
0.93
1:45AM
0.05
1:48PM
0.91
2:17AM
0.02
2:22PM
0.88
2:51AM
0.01
3:01PM
0.84
3:29AM
0.05
3:44PM
0.80
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise7:09--7:09--7:11--7:11--7:11--7:11--7:13--
Sunset-5:39--5:39--5:39--5:40--5:40--5:42--5:42-
clear
part cloud
clear
cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
Rain (mm)
------431------------
Temp. °C202020222222222221222221202021222221222120
Feels °C (?)171718192020212221211916161619202021201614
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.


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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 12 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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