Yona Bay surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 pm Friday 15 Aug 2025 JST
Forecast update in 4 min 20 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
84.9°F
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Yona Bay this week:

The surf forecast for Yona Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 16) at 6AM. The primary swell is predicted to be 3ft and 8s period with a secondary swell of 1ft and 4s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 12 days are 3ft 10s and forecast to arrive on Thursday (Aug 21) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6ft 7s period and expected on Tuesday (Aug 19) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 16th Aug)3ft (0.9m) 8s
Best Surf 6AM (Sat 16th Aug)3ft (0.9m) 8s
Most Powerful 3PM (Thu 21st Aug)3ft (0.9m) 10s

Table - best surf conditions forecast for Yona Bay over the next 12 days.

Updates in 4 min 20 s Forecast update imminent

Short Range Forecast Light rain (total 0.2in), mostly falling on Fri night. Warm (max 84°F on Fri afternoon, min 81°F on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 1.8in), heaviest during Tue afternoon. Warm (max 82°F on Mon afternoon, min 79°F on Mon night). Winds increasing (light winds from the SE on Mon afternoon, strong winds from the SSE by Tue night).

Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (ft) & direction (?)
3.5
E
3
E
3
E
2.5
E
3
E
2.5
E
2.5
E
2
E
1.5
E
1.5
E
1.5
E
0.5
ENE
0.5
ENE
1
E
1
E
1
E
0.5
ENE
0.5
ENE
3
W
2.5
W
2
W
Period(s) (?)988898889109151599912121088
Wave
Graph
(?)Metric surfscale
Energy (?)160122105871341028850414535353532321522221498941
Wind
(mph)
16
ENE
12
ESE
9
ENE
9
E
12
SE
9
SE
9
ESE
12
SSE
6
SSE
9
SE
16
S
22
SSE
28
SE
28
SSE
25
SSE
19
S
12
S
16
S
6
S
12
SSE
12
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
offoffcross-
off
offcross-
off
offcross-
off
offoffoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (ft)
11:00PM
6.1
12:15PM
5.15
11:46PM
5.84
2:09PM
4.79
12:53AM
5.58
4:25PM
4.95
2:33AM
5.51
5:37PM
5.35
4:06AM
5.71
6:19PM
5.71
5:12AM
6.04
6:51PM
6
6:03AM
6.37
Low Tide
/ height (ft)
4:54PM
2.82
5:48AM
1.97
5:40PM
3.48
7:06AM
2.1
6:50PM
4.07
8:45AM
2.03
8:56PM
4.33
10:15AM
1.74
10:40PM
4.13
11:19AM
1.35
11:40PM
3.71
12:07PM
1.08
12:23AM
3.25
Fri
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Sunrise--5:58--5:58--5:58--6:00--6:00--6:01--6:01
Sunset7:04--7:04--7:02--7:01--7:00--7:00--6:59--
part cloudrain showersthunderstorm part cloudclearthunderstorm thunderstorm clearthunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm cloudthunderstorm mod rainthunderstorm rain showersthunderstorm
Rain (in)
-0.00.0--0.00.0-0.10.10.00.20.30.30.1-0.50.30.10.00.1
Temp. °F848282828282848282828181798182828181818282
Feels °F (?)868688868688888688868179737379828182848688

Days 7-12 Weather Summary

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Eyeball surf reportRecent Eyeball Surf Reports for Okinawa

  1. weather stationWind Update Still cross-shore at Yona Bay (moderate winds from the NNE at Nago 19 miles from Yona Bay). 3ft 3s local chop from the ENE to make surfable waves.

    Yona Bay
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31 km away, 1 h 2 min ago

10 mph
NNE
0.0
29.4
Air / Water (°C)
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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 Yona Bay 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.


Information about the Yona Bay Surf forecast

The above surf forecast table for Yona Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Yona Bay can be found by selecting the local surf guide option on the grey menu. Our Yona Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Yona Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Yona Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Yona Bay is 24 km (15 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.

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