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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 pm Tuesday 05 May 2026 JSTForecast update in hr min s Forecast update imminent
Aha Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aha Rivermouth sea temperature is
23.7° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Aha Rivermouth today?
The current surf forecast for Aha Rivermouth at 10PM is: 0.6m 10s primary swell from a East-southeast direction and 0.5m 6s secondary swell from a North direction, 0.7m 4s secondary swell from a East-northeast direction (forecast issued at 02:00pm May 05). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | - | - |
| Afternoon (05 May) | 2ft (0.6m) | 10s |
| Evening (05 May) | 2ft (0.6m) | 10s |
Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 101mm), heaviest during Wed morning. Warm (max 24°C on Fri morning, min 17°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Tue 5 | Wednesday 6 | Thursday 7 | Fri 8 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 6 | E 5 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | |
64 | 71 | 74 | 74 | 98 | 98 | 72 | 94 | 91 | 117 | 88 | 202 | 212 | 171 | 173 | 169 | 169 | 165 | 165 | 173 | 169 | 169 | 143 | 143 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | glassy | glassy | glassy | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | |
High Tide | 9:06PM1.52m | 8:05AM1.71m | 9:48PM1.46m | 8:36AM1.62m | 10:40PM1.40m | |||||||||||||||||||
Low Tide | 2:29PM0.18m | 2:17AM0.91m | 3:03PM0.25m | 2:51AM0.98m | 3:44PM0.35m | 3:38AM1.06m | ||||||||||||||||||
 |  | |  |  | |  |  | | | |  | | |  | | | | | | | | |  | |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — |
 | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | 7:01 |
2 | 7 | 5 | 7 | 4 | 4 | 15 | 30 | 26 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 17 | 18 | 20 | 21 | 21 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 23 |
15 | 16 | 15 | 16 | 18 | 21 | 21 | 17 | 19 | 22 | 23 | 23 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 6 | N 6 | ESE 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 47 | 34 | 74 | 74 | 98 | 98 | 72 | 94 | 91 | 30 | 74 | 202 | 212 | 171 | 173 | 169 | 169 | 165 | 165 | 173 | 169 | 169 | 143 | 143 |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 10 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | ESE 9 | — | ESE 9 | S 5 | NNW 6 | S 5 | NNW 6 | N 6 | N 6 | N 6 | N 5 | N 5 | N 5 | — | NE 7 | NE 7 |
| kJ | 64 | 71 | 31 | 22 | 12 | 8 | 8 | 7 | 90 | — | 88 | 8 | 4 | 2 | 4 | 3 | 1 | 1 | 1 | 1 | 1 | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | W 6 | W 6 | NNW 6 | — | — | N 6 | N 6 | NE 7 | NNE 5 | — | SSW 5 | NNW 6 | N 8 | NNW 6 | N 7 | N 7 | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 4 | — | — | 2 | 1 | 2 | 9 | — | 9 | 4 | 1 | 4 | 1 | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 4 | ENE 4 | ENE 4 | ENE 4 | E 4 | E 5 | E 6 | ESE 6 | SSW 4 | E 5 | NNE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 5 | 7 | 15 | 22 | 37 | 69 | 80 | 14 | 117 | 42 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 44 | 595 | 595 | 70 | 595 | 595 | 90 | 595 | 44 | 30 | 30 | 12 | 0 | 0 | 0 | 12 | 596 | 627 | 0 | 0 | 0 | 0 | 30 | 596 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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