Aha Rivermouth Surf Forecast and Surf Reports

(Okinawa, Japan)

Forecast
- Hourly Forecast
- 16 Day Forecast
Maps
Live
Weather State
Spot Information

Aha Rivermouth Surf Guide

Aha Rivermouth in Okinawa is an exposed beach/jetty break that has fairly consistent surf. Summer offers the best conditions for surfing. Offshore winds are from the southwest. Most of the surf comes fis in the form of windswells and the ideal wave direction is from the northeast. The beach breaks peel to the right. When it's working here, it can get crowded. Watch out for rocks.

Aha Rivermouth Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach/jetty	2	fairly consistent	23.7°C*ocean temperature recorded from satellite

Surfing Aha Rivermouth:

The best conditions reported for surf at Aha Rivermouth occur when a Northeast swell combines with an offshore wind direction from the Southwest.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Aha Rivermouth (for consistent clean waves)?

julyBest Season: summer

The best time of year for surfing Aha Rivermouth with consistent clean waves (rideable swell with light / offshore winds) is during Summer and most often the month of July. Clean surfable waves are typically found 25% of the time in July while 19% of the time it tends to be blown out. For the remaining 56% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

25%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

19%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

56%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Aha Rivermouth Location Map

Interactive Aha Rivermouth surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Aha Rivermouth is Yoron Airport (RNJ) in Japan, 38 km (24 miles) away (directly). The second nearest airport to Aha Rivermouth is Kadena Ab Airport (DNA), also in Japan, 66 km (41 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Aha Rivermouth Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Thursday, 7 May 2026, 16:38 Local Time

m, °C	Thursday 07
ft, °F	12PM	3PM	6PM	9PM
Wave (m)	E	E	ESE	ESE
Period (s)	9	9	9	9
Wind (km/h)
Wind State	glass	glass	glass	glass

Tides at Aha Rivermouth

Current tide and informaton

For Ada, Okinawa, Japan, 3 km from Aha Rivermouth.

Next High Water: 10:40pm | 1.4m

Next Low Water: 03:38am | 1.06m

NEXT	IS AT (local time)	remaining
high tide
low tide

Aha Rivermouth Sea Temperature

Sunny with pleasantly warm air temperatures (feeling like 22.0 °C once we account for wind), and similar sea temperatures (23.7 °C). Wear boardshorts or a shorty, or better still a thin summer wetsuit to keep the UV off.

Today, many surfers would wear a shorty.

Current Temp*: 23.7°C*ocean temperature recorded from satellite