Yona Bay surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 am Saturday 31 Jan 2026 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
21.5° C
(Which is slightly cooler than normal)


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 (Jan 31) at 12PM. The primary swell is predicted to be 0.9m and 7s period. 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 2.5m 8s and forecast to arrive on Saturday (Feb 07) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Jan 31) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 31st Jan)3ft (0.9m) 7s
Best Surf12PM (Sat 31st Jan)3ft (0.9m) 7s
Most Powerful 9AM (Sat 7th Feb)8ft (2.5m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 13mm), heaviest on Sat morning. Very mild (max 18°C on Sat morning, min 13°C on Mon night). Winds increasing (light winds from the SSW on Sat morning, fresh winds from the N by Mon night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Thu afternoon, min 14°C on Tue morning). Winds decreasing (fresh winds from the N on Tue morning, calm by Thu night).

Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
1
1
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
N
1
N
1.8
NNE
1.3
N
1.3
NNW
1.1
NNW
1.1
N
1.2
N
1.6
N
1.7
N
1.6
N
1.1
NNW
0.8
NNW
0.5
N
0.4
NNW
0.3
NNW
0.2
NNW
0.2
ENE
0.4
NE
0.4
NE
1.2
N
Period(s) (?)77767777778877666101095
Wave
Graph
(?)Metric surfscale
Energy kJ (?)511083551401571281211302263063561596923147310232060
Wind
(km/h)
25
S
20
N
25
NNE
25
N
20
N
20
NNE
20
N
25
N
30
NNW
35
N
20
NNE
20
E
10
E
10
E
10
ESE
10
SSE
5
NW
5
WSW
5
NNW
10
N
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
onglasscross-
on
cross-
on
cross
High Tide
/ height (m)
5:43PM
1.67
7:19AM
1.59
6:32PM
1.75
7:51AM
1.65
7:16PM
1.80
8:21AM
1.68
7:57PM
1.80
8:49AM
1.69
8:36PM
1.75
9:17AM
1.69
9:15PM
1.66
9:45AM
1.66
9:53PM
1.53
Low Tide
/ height (m)
12:05PM
0.78
12:38AM
-0.11
12:49PM
0.66
1:18AM
-0.14
1:28PM
0.55
1:55AM
-0.12
2:05PM
0.45
2:29AM
-0.06
2:41PM
0.38
3:01AM
0.05
3:18PM
0.34
3:31AM
0.18
3:55PM
0.34
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Sunrise7:13--7:11--7:11--7:11--7:11--7:09--7:09--
Sunset-6:07--6:07--6:08--6:09--6:09--6:10--6:12-
mod rain
rain showers
cloud
part cloud
clear
part cloud
part cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
cloud
light rain
Rain (mm)
103----------------1-1
Temp. °C181715151515141414141515161717171818161716
Feels °C (?)1515910111199761010131415161718161613
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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