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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 16 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
24.4° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 4AM is: 2.2m 8s primary swell from a East direction and 0.2m 14s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 16). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 7ft (2.1m) | 8s |
| Afternoon (17 May) | 7ft (2.1m) | 8s |
| Evening (17 May) | 7ft (2.1m) | 8s |
Table - waves today at Castles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Tue morning, min 22°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat night, light winds from the ENE by Tue afternoon). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | |
572 | 643 | 703 | 671 | 626 | 626 | 616 | 612 | 612 | 597 | 610 | 626 | 641 | 582 | 568 | 513 | 501 | 448 | 439 | 401 | 411 | 430 | 389 | 380 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:05PM2.02m | 6:28AM2.16m | 7:54PM2.01m | 7:09AM2.18m | 8:43PM1.95m | 7:51AM2.14m | ||||||||||||||||||
Low Tide | 00:44AM0.71m | 1:16PM-0.18m | 1:27AM0.78m | 2:02PM-0.19m | 2:10AM0.85m | 2:49PM-0.12m | ||||||||||||||||||
 |  | | |  | | | | | | |  | | | | | | | | | | | | | |
 | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — |
 | 7:07 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | 7:09 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 24 | 24 |
20 | 18 | 18 | 19 | 18 | 18 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 20 | 22 | 22 | 23 | 24 | 26 | 26 | |
Swell 1 Height (m) Direction Period (s) | SE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | SE 13 | SE 14 | ESE 13 | SE 12 | SE 12 | SE 12 | — | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 |
 kJ | 8 | 19 | 18 | 18 | 18 | 18 | 7 | 7 | 17 | 24 | 24 | 23 | — | 6 | 6 | 6 | 6 | 6 | 439 | 401 | 411 | 430 | 389 | 380 |
Swell 2 Height (m) Direction Period (s) | SE 10 | N 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | — |
| kJ | 572 | 643 | 703 | 671 | 626 | 626 | 616 | 612 | 612 | 597 | 610 | 626 | 641 | 582 | 568 | 513 | 501 | 448 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 687 | 687 | 29 | 29 | 29 | 29 | 852 | 29 | 29 | 29 | 32 | 29 | 32 | 29 | 32 | 32 | 32 | 29 | 32 | 32 | 32 | 32 | 32 | 32 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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