Yona Bay Surf Forecast

/ Okinawa (32 surf breaks) /

Japan (129 surf breaks) / Lat Long: (26.76° N 128.19° E)

Surf Forecasts:

Yona Bay surfForecast / Okinawa / Japan

48hr Weather and Surf, issued 2 am Wednesday 17 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

Yona Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Yona Bay sea temperature is 29.8° C
(Which is 1.6°C warmer than normal for this time of year)

How big are the waves at Yona Bay today?

The current surf forecast for Yona Bay at 8AM is: 0.2m 13s primary swell from a East-northeast direction (forecast issued at 02:00am September 17). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (17 Sep)	0.5ft (0.2m)	13s
Afternoon (17 Sep)	1.5ft (0.4m)	9s
Evening (17 Sep)	1.5ft (0.4m)	9s

Table - waves today at Yona Bay. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 17								Thursday 18								Friday 19
	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	6 PM	9 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	ENE	ENE	E	ENE	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Period(s) (?)	10	10	10	13	13	9	13	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9
Wave Graph (?)
kJ (?)	17	30	30	17	17	28	17	25	26	24	25	24	23	23	23	23	23	24	25	24	25	25	25	25
Wind (km/h)	SE	SE	SE	SE	SSE	SE	ESE	SE	SE	SSE	SSE	SE	ESE	E	E	E	ESE	ESE	ESE	ESE	E	E	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	off	off	off	off	off	off	off	off	off	glass	off	cross- off	cross- off	cross- off	off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)		2:31AM 1.57					5:17PM 1.64				4:11AM 1.65				5:52PM 1.74				5:13AM 1.77					6:20PM 1.82
Low Tide / height (m)	9:18PM 1.30				10:02AM 0.57				10:46PM 1.15				11:04AM 0.49				11:33PM 0.98				11:49AM 0.43

	Wednesday 17								Thursday 18								Friday 19
Sunrise	-	-	-	6:13	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:13	-	-	-	-
Sunset	-	-	-	-	-	-	6:30	-	-	-	-	-	-	-	6:29	-	-	-	-	-	-	-	6:28	-

Rain (mm)	-	-	-	-	-	-	1	-	-	-	-	-	1	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	28	28	28	29	30	30	29	28	28	28	28	28	29	29	29	28	28	28	28	28	29	29	28	28
Feels °C (?)	31	31	31	32	33	34	33	31	31	32	32	33	32	32	32	31	31	32	31	31	31	30	30	31

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 Yona Bay (calm at Nago 31 km from Yona Bay). 0.2m 10s swell from the E with a 0.2m 13s groundswell, also from the E. 2 swells combining to make bigger set waves.
1 hour 10 minutes ago Yona Bay

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31 km away, 1 h 10 min ago

4 km/h

0.0

29.8

Air / Water (°C)

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