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Surf Forecasts:
Aha Rivermouth surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 8 am Monday 01 Jun 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
24.8° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Aha Rivermouth today (01 Jun):
- Morning surf: Morning surf (01 Jun, local time) - 11ft (3.5m), 9s period with E swell.
- Afternoon surf: Afternoon surf (01 Jun, local time) - 25ft (7.5m), 14s period with SE swell.
- Evening surf: Evening surf (01 Jun, local time) - 26ft (8.0m), 13s period with SE swell.
The current surf forecast for Aha Rivermouth at 5PM is: 8.0m 14s primary swell from a Southeast direction (forecast issued at 08:00am June 01). An open ocean swell of 4.5m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Jun) | 11ft (3.5m) | 9s |
| Afternoon (01 Jun) | 25ft (7.5m) | 14s |
| Evening (01 Jun) | 26ft (8.0m) | 13s |
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 88mm), heaviest during Mon afternoon. Warm (max 26°C on Mon morning, min 25°C on Tue night). Winds decreasing (extremely windy from the ESE on Mon afternoon, calm by Wed afternoon). | ||||||||||||||||||||||||
Monday 1 | Tuesday 2 | Wednesday 3 | Thu 4 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 9 | E 9 | SE 14 | SE 14 | SE 13 | SE 13 | E 10 | E 10 | ESE 10 | ESE 9 | ESE 9 | NNW 9 | NNW 9 | N 10 | N 10 | N 10 | N 10 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | |
1730 | 1730 | 14798 | 21084 | 25790 | 21411 | 1307 | 802 | 365 | 141 | 90 | 489 | 567 | 902 | 753 | 504 | 361 | 229 | 181 | 133 | 95 | 74 | 74 | 55 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | glassy | glassy | off | off | off | |
High Tide | 6:22AM1.83m | 7:55PM1.66m | 6:50AM1.83m | 8:28PM1.65m | 7:21AM1.81m | 9:02PM1.64m | ||||||||||||||||||
Low Tide | 1:15PM0.18m | 1:09AM0.98m | 1:45PM0.18m | 1:41AM1.00m | 2:17PM0.21m | 2:16AM1.02m | ||||||||||||||||||
 |  | | |  |  |  | | |  | |  | |  | | | | | | |  |  | | | |
 | 5:33 | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:33 |
 | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | 7:16 |
6 | 3 | 3 | 14 | 41 | 20 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | |
Temp °C | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 25 |
20 | 19 | 18 | 16 | 12 | 24 | 24 | 17 | 18 | 19 | 22 | 24 | 26 | 28 | 27 | 27 | 28 | 29 | 29 | 30 | 30 | 30 | 29 | 28 | |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SSE 14 | — | S 14 | SSE 13 | SSE 13 | E 10 | S 12 | S 10 | S 10 | NNW 9 | NNW 9 | N 10 | N 10 | N 10 | N 10 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 |
 kJ | 7524 | 7250 | 14670 | — | 9018 | 23837 | 8687 | 802 | 1206 | 693 | 384 | 489 | 567 | 902 | 753 | 504 | 361 | 229 | 181 | 133 | 95 | 74 | 74 | 55 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | E 10 | N 11 | ESE 10 | ESE 9 | ESE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 7 | SSE 7 | SSE 7 | SE 7 | S 7 | S 7 | SSE 7 | SSE 6 |
| kJ | — | — | — | — | — | — | 1307 | 9 | 365 | 141 | 90 | 359 | 245 | 171 | 142 | 99 | 50 | 74 | 54 | 29 | 23 | 22 | 25 | 23 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 7 | NE 11 | — | — | E 10 | SE 10 | W 6 | W 6 | SE 8 | WSW 5 | E 10 | S 7 | SE 7 | SE 7 | E 10 | E 10 |
| kJ | — | — | — | — | — | — | — | — | 5 | 5 | — | — | 34 | 26 | 84 | 35 | 35 | 5 | 17 | 23 | 16 | 16 | 17 | 16 |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | SE 14 | SE 14 | SE 13 | SE 13 | SSE 13 | S 12 | WSW 9 | W 8 | WNW 8 | W 7 | W 7 | WNW 7 | W 6 | — | W 6 | — | — | — | — | — | — | SSW 3 |
| kJ | 1730 | 1730 | 14798 | 21084 | 25790 | 21411 | 19815 | 6662 | 3488 | 2003 | 1400 | 339 | 223 | 139 | 29 | — | 3 | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 673 | 673 | 673 | 595 | 595 | 60 | 673 | 664 | 664 | 673 | 673 | 746 | 30 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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