Yona Bay surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 am Tuesday 23 Dec 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
23.7° C
(Which is normal for this time of year)


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 Tuesday (Dec 23) at 6PM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 0.5m and 7s. Another secondary swell of 0.3m and 12s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 12 days are 3.5m 10s and forecast to arrive on Friday (Dec 26) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 10s period and expected on Wednesday (Dec 24) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 23rd Dec)6.5ft (2.0m) 9s
Best Surf 6PM (Tue 23rd Dec)6.5ft (2.0m) 9s
Most Powerful 6AM (Fri 26th Dec)11ft (3.5m) 10s

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 16mm), heaviest on Tue night. Warm (max 22°C on Tue morning, min 14°C on Thu night). Winds increasing (light winds from the SSW on Tue night, strong winds from the N by Thu afternoon).

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Fri morning. Very mild (max 18°C on Sun afternoon, min 14°C on Fri morning). Winds decreasing (strong winds from the N on Fri morning, light winds from the NE by Sun afternoon).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
2
3
0
0
0
0
0
0
0
0
1
2
0
0
0
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.1
E
2
E
1.8
E
1.5
E
1.2
E
1.3
E
1.3
E
2.5
NNW
3.5
NNW
3.5
N
2.5
N
2.2
N
1.7
N
1.3
N
1
N
0.7
ENE
0.7
ENE
0.7
ENE
0.5
ENE
0.5
ENE
0.5
ENE
Period(s) (?)99910101010810111110998141414131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7026275414222843473408222345233516619805162691341731681611029998
Wind
(km/h)
35
ESE
30
ESE
25
SE
15
NW
25
NNW
20
NNW
35
NNW
45
NNW
45
N
40
N
30
N
20
NNE
15
NE
15
NNE
20
NNE
20
NE
20
NE
10
NE
5
E
10
NE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
crosscrosscrossglasscrosscross
High Tide
/ height (m)
9:25AM
1.56
8:25PM
1.67
10:01AM
1.56
9:10PM
1.62
10:40AM
1.54
10:01PM
1.55
11:23AM
1.52
11:03PM
1.45
12:10PM
1.50
12:19AM
1.35
1:03PM
1.49
1:53AM
1.30
2:01PM
1.51
Low Tide
/ height (m)
2:48PM
0.83
3:18AM
0.07
3:32PM
0.80
3:59AM
0.15
4:21PM
0.76
4:44AM
0.27
5:18PM
0.71
5:34AM
0.41
6:25PM
0.65
6:33AM
0.56
7:40PM
0.55
7:41AM
0.70
8:56PM
0.42
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Sunrise7:11--7:11--7:11--7:13--7:13--7:13--7:13--
Sunset-5:38--5:39--5:39--5:40--5:40--5:42--5:43-
part cloud
cloud
thunderstorm
thunderstorm
part cloud
part cloud
cloud
light rain
cloud
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
clear
Rain (mm)
--104---2-21------1---
Temp. °C222122212020181716141515161617171818181819
Feels °C (?)18172021171712965810131313131416181717
  • 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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