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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Thursday 30 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles sea temperature is
23.5° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 8PM is: 0.4m 9s primary swell from a East-southeast direction and 0.7m 5s secondary swell from a South-southeast direction (forecast issued at 02:00pm April 30). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | - | - |
| Afternoon (30 Apr) | 2.5ft (0.8m) | 6s |
| Evening (30 Apr) | 1.5ft (0.5m) | 9s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 24°C on Sun morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 6 | SE 6 | SSE 6 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | |
126 | 38 | 43 | 46 | 41 | 58 | 58 | 62 | 33 | 55 | 55 | 66 | 66 | 92 | 94 | 92 | 92 | 98 | 88 | 90 | 96 | 98 | 98 | 98 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 6:44PM1.87m | 6:21AM1.95m | 7:21PM1.87m | 6:48AM1.98m | 7:57PM1.83m | 7:14AM1.98m | ||||||||||||||||||
Low Tide | 12:17PM0.17m | 00:29AM0.61m | 12:52PM0.07m | 1:00AM0.67m | 1:26PM0.03m | 1:29AM0.74m | ||||||||||||||||||
 |  |  |  |  | | |  | | | |  | | | | | | | | | | | |  | |
 | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — |
 | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | 7:00 |
2 | 2 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 23 | 24 |
23 | 22 | 20 | 18 | 18 | 17 | 16 | 15 | 14 | 16 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 19 | 19 | 19 | 21 | 22 | 23 | 24 | |
Swell 1 Height (m) Direction Period (s) | NW 7 | SW 6 | WSW 6 | WSW 6 | SW 6 | ESE 9 | ESE 9 | ESE 9 | E 8 | ESE 8 | ESE 8 | NW 7 | ESE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 14 | 120 | 88 | 49 | 38 | 58 | 58 | 62 | 33 | 55 | 55 | 44 | 66 | 92 | 94 | 92 | 92 | 98 | 88 | 90 | 96 | 98 | 98 | 98 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SE 6 | SSE 6 | SSE 5 | ESE 8 | SW 6 | SW 6 | SW 6 | SW 6 | ESE 10 | ESE 10 | ESE 9 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | N 6 | NNW 6 | N 6 | N 6 | N 6 | N 6 | N 6 |
| kJ | 8 | 38 | 43 | 21 | 41 | 18 | 19 | 10 | 6 | 19 | 19 | 66 | 37 | 27 | 23 | 16 | 14 | 7 | 8 | 7 | 7 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | S 6 | ESE 9 | ESE 9 | S 5 | S 5 | S 5 | S 5 | ESE 10 | SW 6 | WSW 6 | SW 6 | SW 6 | SW 5 | SW 5 | NE 8 | NE 10 | WNW 5 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 7 | 15 | 27 | 46 | 14 | 8 | 8 | 5 | 18 | 6 | 3 | 1 | 1 | 1 | 1 | 3 | 4 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SSW 6 | — | NW 7 | NW 9 | NW 7 | NW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NE 4 | NE 4 | NE 4 | ENE 4 | ENE 4 | E 4 | E 4 | ESE 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 |
| kJ | 126 | — | 43 | 126 | 104 | 99 | 128 | 123 | 113 | 102 | 93 | 7 | 9 | 7 | 5 | 4 | 6 | 6 | 7 | 10 | 15 | 21 | 21 | 28 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 94 | 0 | 0 | 5 | 0 | 0 | 731 | 783 | 1059 | 1078 | 720 | 29 | 29 | 17 | 32 | 41 | 608 | 608 | 605 | 605 | 605 | 588 | 588 | 588 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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