Aha Rivermouth Surf Forecast

/ Okinawa (32 surf breaks) /

Japan (129 surf breaks) / Lat Long: (26.72° N 128.30° E)

Surf Forecasts:

Aha Rivermouth surfForecast / Okinawa / Japan

48hr Weather and Surf, issued 8 pm Saturday 13 Sep 2025 JST

Forecast 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 29.8° C
(Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Aha Rivermouth today?

The current surf forecast for Aha Rivermouth at 10PM is: 0.3m 11s primary swell from a East direction and 0.2m 11s secondary swell from a East-southeast direction (forecast issued at 08:00pm September 13). An open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (13 Sep)	-	-
Afternoon (13 Sep)	-	-
Evening (13 Sep)	2.5ft (0.7m)	6s

Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sat 13		Sunday 14								Monday 15								Tuesday 16
	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM
Rating (10 max)	0	1	0	0	0	0	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	SE	E	E	E	E	E	E	E	ESE	ESE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	SE	SE	SE
Period(s) (?)	11	6	11	11	11	11	11	11	11	11	8	8	8	8	8	8	8	8	8	8	8	8	8	7
Wave Graph (?)
kJ (?)	36	31	21	36	35	36	37	37	36	90	44	51	46	55	54	45	44	39	39	37	37	67	50	37
Wind (km/h)	SSW	S	S	S	S	S	S	S	SSE	SSE	SSE	SSE	SSE	SE	ESE	ESE	ESE	ESE	SE	ESE	SE	SE	ESE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross	cross- on	cross- on	cross	cross	cross	cross	cross	cross
High Tide / height (m)			9:57PM 1.89				11:38AM 1.54				10:41PM 1.76					1:45PM 1.44			11:53PM 1.62
Low Tide / height (m)	3:59PM 0.96				4:58AM 0.48				4:43PM 1.14					6:16AM 0.59				6:08PM 1.29				8:04AM 0.63

	Sat 13		Sunday 14								Monday 15								Tuesday 16
Sunrise	-	-	-	-	-	6:11	-	-	-	-	-	-	-	6:11	-	-	-	-	-	-	-	6:11	-	-
Sunset	6:34	-	-	-	-	-	-	-	6:32	-	-	-	-	-	-	-	6:31	-	-	-	-	-	-	-

Rain (mm)	3	3	1	-	1	1	1	-	-	1	-	-	-	-	-	-	-	-	-	-	-	-	-	1
Temp. °C	28	28	28	28	28	29	29	30	29	28	29	28	28	29	29	29	29	29	28	28	28	29	29	29
Feels °C (?)	31	31	30	30	30	32	32	33	33	32	33	31	32	33	32	32	32	33	31	32	31	32	32	32

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

Recent Eyeball Surf Reports for Okinawa

Wind Update Continuing clean conditions at Aha Rivermouth (calm at Nago 37 km from Aha Rivermouth). 0.4m 7s swell from the ESE with a 0.2m 10s swell from the E. 2 swells combining to make bigger set waves.
38 minutes ago Aha Rivermouth

Expand

View all

37 km away, 38 min ago

4 km/h

0.0

29.8

Air / Water (°C)

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aha Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.