Aja surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 pm Tuesday 09 Dec 2025 JST
Forecast update in hr  min  s Forecast update imminent
Aja surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aja sea temperature is
24.8° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Aja this week:

The surf forecast for Aja over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Dec 13) at 12AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 1.2m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Aja in the next 12 days are 3.0m 10s and forecast to arrive on Sunday (Dec 14) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Saturday (Dec 13) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 13th Dec)4ft (1.2m) 8s
Best Surf12AM (Sat 13th Dec)4ft (1.2m) 8s
Most Powerful 3PM (Sun 14th Dec)10ft (3.0m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 10mm), heaviest on Thu night. Warm (max 23°C on Thu morning, min 19°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Fri night. Warm (max 23°C on Sat morning, min 15°C on Sun night). Winds increasing (calm on Fri night, strong winds from the NNW by Sun afternoon).

Tue
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
1
1
0
0
0
0
0
0
0
2
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
N
1.4
E
1.2
E
0.6
N
0.4
NNW
0.3
N
0.3
N
0.9
NNE
1.4
NNE
1.6
NE
1.2
NNW
0.9
NNW
0.7
NNW
0.5
NNW
3
NNW
3
NW
2.5
NNW
2.1
NNW
1.8
NNW
1.5
NNW
1.3
N
Period(s) (?)78876664668888810109998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)107273210321376221402131851037339132018571450735508320213
Wind
(km/h)
20
NNE
20
ENE
20
ENE
25
E
15
SE
15
SSE
15
SW
30
NNE
35
NE
30
NE
10
ESE
15
S
15
SW
35
NNW
40
NNW
45
NNW
35
N
30
N
30
N
25
NNE
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
off
offcross-
off
crosscross-
on
crosscrossoffcross-
off
crossoncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross
High Tide
/ height (m)
9:51PM
1.79
11:40AM
1.62
10:49PM
1.62
12:35PM
1.58
12:01AM
1.46
1:30PM
1.56
1:30AM
1.36
2:22PM
1.58
3:01AM
1.34
3:08PM
1.61
4:17AM
1.39
3:51PM
1.64
5:16AM
1.47
Low Tide
/ height (m)
4:13PM
0.95
4:51AM
0.19
5:16PM
0.96
5:41AM
0.38
6:31PM
0.94
6:36AM
0.55
7:53PM
0.85
7:37AM
0.70
9:05PM
0.72
8:42AM
0.79
10:02PM
0.57
9:43AM
0.85
10:47PM
0.42
10:37AM
0.87
Tue
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Sunrise--7:05--7:05--7:05--7:07--7:07--7:07--7:09
Sunset5:37--5:37--5:37--5:37--5:37--5:38--5:38--
clear
clear
part cloud
clear
clear
rain showers
rain showers
rain showers
cloud
cloud
rain showers
rain showers
rain showers
mod rain
light rain
light rain
part cloud
cloud
cloud
cloud
part cloud
Rain (mm)
-----136--1123611-----
Temp. °C212021212223232121202123232118161617161617
Feels °C (?)1716171821222220161622222220127810101012
  • 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 Aja Surf forecast

The above surf forecast table for Aja provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Aja can be found by selecting the local surf guide option on the grey menu. Our Aja 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 (Aja) 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 Aja 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.

Aja is 4 km (2 miles) from the city of Tomigusuku. If you plan a holiday in Okinawa, look for hotels and other accommodation in Tomigusuku. Tomigusuku has rooms for a wide range of budgets as well as car hire and transport links.

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