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Surf Forecasts:
Castles surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 pm Friday 15 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 1.2°C colder than average for this time of year)How big are the waves at Castles today?
The current surf forecast for Castles at 1AM is: 1.8m 6s primary swell from a East direction and 0.2m 11s secondary swell from a East-southeast direction, 0.1m 15s secondary swell from a Southeast direction (forecast issued at 08:00pm May 15). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 6.5ft (2.0m) | 7s |
| Afternoon (16 May) | 7ft (2.1m) | 8s |
| Evening (16 May) | 8ft (2.4m) | 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 23°C on Sat morning, min 22°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||||||
Fri 15 | Saturday 16 | Sunday 17 | Monday 18 | |||||||||||||||||||||
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 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | |
200 | 233 | 261 | 321 | 341 | 411 | 491 | 531 | 612 | 746 | 779 | 733 | 687 | 645 | 691 | 671 | 597 | 597 | 596 | 540 | 553 | 553 | 499 | 499 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | |
High Tide | 6:15PM1.98m | 5:48AM2.10m | 7:05PM2.02m | 6:28AM2.16m | 7:54PM2.01m | 7:09AM2.18m | ||||||||||||||||||
Low Tide | 00:01AM0.66m | 12:30PM-0.10m | 00:44AM0.71m | 1:16PM-0.18m | 1:27AM0.78m | 2:02PM-0.19m | ||||||||||||||||||
 |  | | | | |  | | | | | | | | | | |  | | | | | | | |
 | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — |
 | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | 7:08 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 23 |
20 | 18 | 19 | 19 | 18 | 18 | 19 | 19 | 19 | 17 | 18 | 18 | 18 | 17 | 17 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | ESE 11 | SE 11 | ESE 11 | ESE 11 | ESE 11 | SE 14 | SE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | SE 14 | SE 13 | ESE 13 | SE 12 | SE 12 | SE 12 | SE 12 | ESE 12 | ESE 12 | ESE 12 |
 kJ | 50 | 52 | 12 | 18 | 22 | 12 | 12 | 8 | 8 | 19 | 18 | 18 | 18 | 18 | 7 | 7 | 17 | 24 | 24 | 24 | 23 | 14 | 15 | 14 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 11 | SE 15 | SE 15 | ESE 11 | SE 15 | SE 15 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 5 | 9 | 9 | 12 | 8 | 8 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 6 | SE 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 200 | 233 | 261 | 321 | 341 | 411 | 491 | 531 | 612 | 746 | 779 | 733 | 687 | 645 | 691 | 671 | 597 | 597 | 596 | 540 | 553 | 553 | 499 | 499 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 687 | 29 | 29 | 687 | 687 | 1049 | 1049 | 687 | 687 | 687 | 29 | 29 | 687 | 687 | 687 | 772 | 29 | 29 | 29 | 29 | 32 | 29 | 29 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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