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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Saturday 23 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 2PM is: 0.8m 9s primary swell from a East-southeast direction (forecast issued at 08:00am May 23). An open ocean swell of 1.2m 6s is not directed at the surf break, a second open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 2.5ft (0.8m) | 9s |
| Afternoon (23 May) | 2.5ft (0.8m) | 9s |
| Evening (23 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 27mm), heaviest during Sat morning. Warm (max 27°C on Sat night, min 24°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
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 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | NE 10 | ESE 9 | |
144 | 115 | 115 | 113 | 113 | 121 | 121 | 124 | 118 | 120 | 118 | 124 | 121 | 119 | 119 | 94 | 96 | 96 | 100 | 105 | 107 | 111 | 94 | 71 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross | cross-off | glassy | cross | cross | cross-off | cross | cross | cross | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | |
High Tide | 11:37AM1.65m | 1:37AM1.60m | 1:14PM1.56m | 2:33AM1.63m | 2:49PM1.56m | |||||||||||||||||||
Low Tide | 5:55AM1.06m | 6:37PM0.55m | 7:21AM0.99m | 7:48PM0.68m | 8:41AM0.85m | 8:55PM0.78m | ||||||||||||||||||
 | |  | | |  |  |  | |  |  | | | | | | |  | | | | | |  | |
 | 5:39 | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 |
 | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | 7:13 |
3 | 2 | 5 | 2 | 2 | 1 | — | 2 | 2 | — | — | — | 1 | 2 | — | — | — | — | 3 | 4 | 1 | — | — | — | |
Temp °C | 26 | 26 | 24 | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 |
26 | 25 | 25 | 28 | 27 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 31 | 31 | 31 | 30 | 30 | 29 | 29 | 30 | 27 | 27 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | WSW 6 | 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 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 |
 kJ | 144 | 115 | 115 | 90 | 113 | 121 | 121 | 124 | 118 | 120 | 118 | 124 | 121 | 119 | 119 | 94 | 96 | 96 | 100 | 105 | 107 | 111 | 92 | 64 |
Swell 2 Height (m) Direction Period (s) | — | N 6 | NNW 8 | ESE 9 | NNW 8 | WSW 6 | WSW 6 | NNW 7 | NNW 7 | NNW 7 | N 7 | W 7 | SW 6 | SW 6 | SW 6 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 |
| kJ | — | 1 | 7 | 113 | 6 | 34 | 36 | 5 | 4 | 4 | 1 | 14 | 29 | 16 | 16 | 47 | 46 | 60 | 79 | 77 | 74 | 94 | 94 | 71 |
Swell 3 Height (m) Direction Period (s) | — | N 9 | N 9 | NNW 8 | SE 5 | SSE 4 | NNW 7 | N 8 | N 8 | N 7 | N 6 | NE 12 | W 7 | W 7 | NE 10 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 |
| kJ | — | 2 | 1 | 6 | 1 | 3 | 5 | 1 | 1 | 1 | 1 | 5 | 25 | 25 | 48 | 18 | 17 | 18 | 18 | 18 | 12 | 8 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | WSW 6 | — | WSW 6 | — | — | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | — | — | — | — | — | — | — | — | ESE 2 | SE 3 | SSE 4 | S 4 |
| kJ | 84 | 98 | 129 | — | 65 | — | — | 53 | 59 | 59 | 72 | 52 | — | — | — | — | — | — | — | — | 1 | 2 | 7 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 48 | 48 | 588 | 16 | 48 | 0 | 16 | 16 | 0 | 16 | 16 | 16 | 16 | 0 | 16 | 48 | 588 | 92 | 92 | 19 | 92 | 92 | 92 | 48 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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