Aja surfForecast / Okinawa / Japan

information circle12 Day Weather and Surf, issued 2 pm Saturday 16 Aug 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
29.4° 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 Wednesday (Aug 20) at 3AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Aja in the next 12 days are 2.1m 6s and forecast to arrive on Tuesday (Aug 19) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Tuesday (Aug 19) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 20th Aug)2.5ft (0.8m) 6s
Best Surf 3AM (Wed 20th Aug)2.5ft (0.8m) 6s
Most Powerful 3PM (Tue 19th Aug)7ft (2.1m) 6s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 53mm), heaviest during Mon night. Warm (max 29°C on Sat afternoon, min 25°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Tue night. Warm (max 29°C on Wed morning, min 27°C on Tue night). Wind will be generally light.

Sat
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
E
0.2
E
0.9
ESE
0.9
ESE
0.2
E
0.5
E
0.4
E
0.1
E
1.1
E
2.1
W
1
WNW
0.8
WNW
0.8
WNW
0.4
WNW
0.3
W
0.4
WNW
0.3
W
0.4
W
0.4
W
0.2
E
0.2
E
Period(s) (?)8118810991676766577677109
Wave
Graph
(?)Metric surfscale
Energy (?)1039007463281453828940371717211320141410
Wind
(km/h)
20
E
20
ESE
15
ESE
20
ESE
20
SE
15
SE
25
ESE
25
ESE
15
SSW
25
WSW
15
SSW
15
SSW
20
SSW
15
S
15
SSW
15
S
15
SSE
10
SSE
10
SE
15
ESE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
offoffoffoffcross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoff
High Tide
/ height (m)
11:58PM
1.93
2:14PM
1.60
1:11AM
1.86
4:14PM
1.66
2:47AM
1.86
5:28PM
1.80
4:12AM
1.94
6:14PM
1.92
5:15AM
2.05
6:51PM
2.01
6:05AM
2.15
7:22PM
2.07
6:49AM
2.21
Low Tide
/ height (m)
5:45PM
1.12
7:21AM
0.64
7:01PM
1.31
8:51AM
0.62
9:03PM
1.39
10:15AM
0.54
10:41PM
1.32
11:19AM
0.43
11:40PM
1.20
12:09PM
0.33
12:24AM
1.07
12:51PM
0.27
1:02AM
0.94
Sat
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Sunrise--6:01--6:01--6:03--6:03--6:03--6:03--6:03
Sunset7:05--7:04--7:02--7:01--7:00--7:00--7:00--
thunderstorm thunderstorm thunderstorm clearthunderstorm thunderstorm thunderstorm rain showersthunderstorm thunderstorm rain showersclearpart cloudrain showerspart cloudpart cloudrain showersthunderstorm part cloudpart cloudthunderstorm
Rain (mm)
131-432291012--2--11--2
Temp. °C292729292828272628282729292729292829292828
Feels °C (?)312932313031282628282931313031323234333131
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Okinawa

  1. weather stationWind Update The wind is still cross-off at Aja (moderate winds from the E at Naha 3 km from Aja). A 0.7m windswell from the E

    Aja
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Actual: 48 min ago

22 km/h
E
Cross-Off
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aja surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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