Measurements:
°C
°F
Okinawa
74°F
SW 4 mph
Feels like: 74°F
Precip: 25%
World Resorts Japan Okinawa Weather

Okinawa Sea Water Temperature

Current Sea Water Temperature:
+81.6°F
Maximum Sea Water Temperature in November: 85.8°F
Minimum Sea Water Temperature in November: 75.6°F
Average water temperature in November: 81.0°F

Sea Water Temperature for the Last 10 Days:

November 12 81.6°F November 07 83.4°F
November 11 82.0°F November 06 83.4°F
November 10 82.4°F November 05 83.6°F
November 09 82.8°F November 04 83.4°F
November 08 82.8°F November 03 83.4°F

When is the Warmest Sea for Okinawa?

According to our data for the last three years for Okinawa the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Okinawa was 87.9°F. The maximum and minimum values were 85.8°F and 90.4°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Okinawa was 87.3°F. The maximum and minimum values were 86.2°F and 88.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Okinawa was 87.0°F. The maximum and minimum values were 83.4°F and 90.2°F respectively.

Best Time to Visit Okinawa
The most sunny months:
July 9 days
August 8 days
March 6 days
The most warm months:
August 90.8 °F
July 90.6 °F
September 89.1 °F
Warmest sea temperature:
August 88.3 °F
September 87.6 °F
July 87.4 °F
The most cold months:
January 66.0 °F
February 67.2 °F
December 70.0 °F
The most rainy months:
June 13 days
May 10 days
August 9 days
The most windy months:
December 15 mph
January 14 mph
October 14 mph

Okinawa on the Weather Map

Japan Resorts:
NAME
F°
Atami +52
Fukuoka +56
Hakone +50
Hiroshima +58
Kamakura +52
Kobe +58
Kyoto +52
Nagasaki +64
Nagoya +52
Noboribetsu +42
Okinawa +74
Osaka +56
Sapporo +40
Tokyo +52
Yokohama +52
24 Hours Weather Forecast
Okinawa
Local time: 23:24
13 nov, friday
0000 74°F
SW
4 mph
0300 72°F
SW
6 mph
0600 74°F
SW
6 mph
0900 78°F
SW
6 mph
1200 80°F
W
7 mph
1500 80°F
W
7 mph
1800 76°F
W
7 mph
2100 76°F
W
8 mph