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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Friday 22 May 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
24.3° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 9PM is: 0.9m 9s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a East direction (forecast issued at 02:00pm May 22). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | - | - |
| Afternoon (22 May) | 3ft (0.9m) | 9s |
| Evening (22 May) | 3ft (0.9m) | 9s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 35mm), heaviest during Fri afternoon. Warm (max 27°C on Sat night, min 24°C on Fri afternoon). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun night). | ||||||||||||||||||||||||
Fri 22 | Saturday 23 | Sunday 24 | Mon 25 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
156 | 153 | 153 | 153 | 153 | 144 | 144 | 115 | 115 | 113 | 113 | 113 | 113 | 115 | 118 | 120 | 118 | 115 | 113 | 119 | 119 | 119 | 94 | 96 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-on | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | glassy | glassy | on | cross-on | cross-on | cross-on | |
High Tide | 10:21AM1.79m | 00:33AM1.61m | 11:37AM1.65m | 1:37AM1.60m | 1:14PM1.56m | 2:33AM1.63m | ||||||||||||||||||
Low Tide | 5:31PM0.37m | 5:55AM1.06m | 6:37PM0.55m | 7:21AM0.99m | 7:48PM0.68m | 8:41AM0.85m | ||||||||||||||||||
 |  | |  | |  | | | | | |  | | | | | | | | | |  |  | | |
 | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — |
 | — | — | 7:10 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | 7:13 |
1 | 3 | 3 | — | — | 3 | 3 | 1 | 2 | 2 | 1 | 1 | — | 2 | 2 | 2 | 2 | 2 | 3 | — | — | — | — | 1 | |
Temp °C | 25 | 25 | 24 | 24 | 26 | 25 | 25 | 26 | 26 | 26 | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 25 | 24 | 25 | 25 | 25 | 26 | 26 |
27 | 27 | 24 | 25 | 27 | 25 | 27 | 28 | 27 | 25 | 25 | 27 | 28 | 28 | 29 | 29 | 29 | 26 | 28 | 29 | 27 | 27 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 156 | 153 | 153 | 153 | 153 | 144 | 144 | 115 | 115 | 113 | 113 | 113 | 113 | 115 | 118 | 120 | 118 | 115 | 113 | 119 | 119 | 119 | 94 | 96 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | SSE 5 | — | N 6 | N 6 | NNW 8 | NNW 8 | NNW 7 | W 6 | W 6 | NNW 7 | NNW 7 | N 7 | NE 12 | SW 5 | W 7 | SW 6 | NE 10 | NE 10 | NE 10 |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | — | 1 | 1 | 6 | 6 | 5 | 42 | 24 | 4 | 4 | 1 | 6 | 22 | 34 | 16 | 49 | 61 | 79 |
Swell 3 Height (m) Direction Period (s) | W 6 | SW 6 | — | NE 10 | — | E 9 | — | N 9 | N 8 | E 9 | — | NNW 7 | NNW 7 | NNW 7 | N 8 | N 7 | N 6 | N 7 | W 7 | SW 6 | W 7 | SW 6 | SW 6 | SW 6 |
| kJ | 1 | 2 | — | 4 | — | 2 | — | 2 | 1 | 2 | — | 5 | 5 | 5 | 1 | 4 | 1 | 1 | 43 | 23 | 23 | 17 | 17 | 18 |
Wind waves Height (m) Direction Period (s) | SW 6 | WSW 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | WSW 6 | SSW 5 | SSW 5 | WSW 6 | WSW 6 | SW 6 | WSW 6 | — | — | — | — | — | — |
| kJ | 32 | 23 | 32 | 41 | 47 | 69 | 90 | 82 | 77 | 106 | 156 | 142 | 36 | 23 | 41 | 43 | 49 | 63 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 94 | 588 | 588 | 48 | 16 | 16 | 48 | 16 | 48 | 16 | 16 | 16 | 16 | 0 | 0 | 19 | 0 | 0 | 48 | 48 | 65 | 92 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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