Yona Bay surfForecast / Okinawa / Japan

information circle16 Day Weather and Surf, issued 8 pm Wednesday 25 Mar 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
22.0° 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 (Mar 29) at 3AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.4m and 5s. 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 1.7m 8s and forecast to arrive on Thursday (Mar 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 1.5m 6s period and expected on Wednesday (Apr 01) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 29th Mar)2.5ft (0.8m) 11s
Best Surf 6AM (Sun 29th Mar)2.5ft (0.8m) 11s
Most Powerful 6AM (Thu 26th Mar)5.5ft (1.7m) 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 Mostly dry. Warm (max 20°C on Fri afternoon, min 18°C on Wed night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 36mm), heaviest during Mon night. Warm (max 22°C on Mon afternoon, min 19°C on Sat night). Wind will be generally light.

Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wed
01
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
NW
1.6
N
1.6
N
1.2
N
0.6
NE
0.9
NE
0.9
NE
0.8
ENE
0.8
ENE
0.9
ENE
0.8
ENE
0.8
ENE
0.8
ENE
0.7
ENE
0.8
ENE
0.5
ENE
0.4
ENE
0.7
W
0.4
NE
0.3
ENE
0.3
N
Period(s) (?)788811111110101111111111111111611117
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1923473541959916916913313018315415414010916069453929229
Wind
(km/h)
30
NNW
25
N
25
N
20
N
20
NNE
15
NNE
15
NE
20
NE
20
ENE
20
ESE
25
SE
25
SSE
30
SSE
20
SSW
20
SSW
30
S
15
W
10
NNW
10
WNW
10
S
30
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscross-
off
cross-
off
offoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
on
ononcross-
off
cross
High Tide
/ height (m)
1:16AM
1.23
11:39AM
1.40
3:30AM
1.26
1:42PM
1.32
4:39AM
1.38
3:37PM
1.39
5:19AM
1.48
4:48PM
1.51
5:50AM
1.58
5:39PM
1.63
6:17AM
1.65
6:21PM
1.71
6:42AM
1.71
Low Tide
/ height (m)
5:54AM
1.02
7:38PM
0.37
8:23AM
1.05
9:20PM
0.36
10:09AM
0.91
10:31PM
0.29
11:03AM
0.73
11:21PM
0.24
11:43AM
0.54
12:01AM
0.23
12:18PM
0.38
12:34AM
0.24
12:49PM
0.25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wed
01
Sunrise-6:24--6:24--6:22--6:22--6:20--6:20--6:18-
Sunset--6:40--6:40--6:42--6:42--6:43--6:43--6:43
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
thunderstorm
light rain
mod rain
mod rain
thunderstorm
Rain (mm)
------------5112414963
Temp. °C191919191920202020202021212122222120202224
Feels °C (?)141414151617161617171718182022212221222422
  • Map Icons:
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  • 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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