Yona Bay surfForecast / Okinawa / Japan

information circle16 Day Weather and Surf, issued 2 pm Sunday 05 Apr 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
22.3° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 05) at 9PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Yona Bay in the next 16 days are 1.6m 8s and forecast to arrive on Wednesday (Apr 08) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Tuesday (Apr 07) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 5th Apr)2.5ft (0.7m) 8s
Best Surf12AM (Thu 9th Apr)3.5ft (1.0m) 9s
Most Powerful 6AM (Wed 8th Apr)5ft (1.6m) 8s

Table - best surf conditions forecast for Yona Bay over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 38mm), heaviest during Tue morning. Warm (max 23°C on Mon morning, min 19°C on Tue afternoon). Winds increasing (calm on Sun night, fresh winds from the SSW by Mon night).

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Fri morning, min 19°C on Wed night). Wind will be generally light.

Sun
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
1
1
0
0
0
0
0
0
0
2
0
0
0
0
0
0
1
0
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
NW
0.7
E
0.7
E
0.7
E
0.7
E
0.6
E
1.7
N
1.6
NNE
1.3
N
1
N
1
E
0.6
E
0.6
E
0.9
E
0.2
ENE
0.2
ENE
1.1
W
0.8
E
0.7
E
0.8
E
0.6
N
Period(s) (?)7999910678791010101098109107
Wave
Graph
(?)Metric surfscale
Energy kJ (?)54817978856522122019810816873741481081461178713334
Wind
(km/h)
5
SSE
5
SE
10
SE
20
S
25
SW
30
NW
30
NNE
30
NE
25
ENE
20
E
25
SE
25
SSE
25
S
25
SSW
25
SSW
25
SSW
15
SW
10
NNE
15
NNE
10
SE
15
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
crossoncrosscrosscross-
off
cross-
off
offoffcross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
crossoffcross-
off
High Tide
/ height (m)
9:05PM
1.54
8:35AM
1.72
9:39PM
1.44
8:58AM
1.65
10:19PM
1.34
9:24AM
1.56
11:14PM
1.23
9:54AM
1.45
12:52AM
1.17
10:39AM
1.33
3:19AM
1.23
12:42PM
1.22
4:15AM
1.34
Low Tide
/ height (m)
2:39AM
0.63
3:16PM
0.19
3:02AM
0.74
3:50PM
0.27
3:27AM
0.85
4:30PM
0.37
3:57AM
0.97
5:26PM
0.48
4:54AM
1.08
6:55PM
0.56
8:08AM
1.11
8:41PM
0.55
9:57AM
0.97
Sun
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunrise--6:13--6:11--6:11--6:09--6:09--6:07--6:07
Sunset6:45--6:45--6:45--6:46--6:46--6:47--6:47--
rain showers
part cloud
part cloud
thunderstorm
light rain
heavy rain
light rain
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
Rain (mm)
1--14293--------------
Temp. °C202023232320192119202021222225252321212324
Feels °C (?)222123232218151815171819202224242423222525
  • 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 16 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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