World Resorts Japan Okinawa Weather

Okinawa sea water temperature

Current sea water temperature:
+84.4°F
Minimum sea water temperature in September: 87.3°F
Maximum sea water temperature in September: 79.2°F
Average sea water temperature in September: 83.8°F

Sea water temperature for the last 10 days:

September 15 84.4°F September 10 82.9°F
September 14 84.0°F September 9 82.6°F
September 13 83.8°F September 8 82.8°F
September 12 83.8°F September 7 83.3°F
September 11 83.3°F September 6 83.1°F

When is the warmest sea in Okinawa?

Based on the data about daily sea water temperature for the last three years the warmest sea in Okinawa was noticed in August, September and July.

Monthly Sea Temperatures in Okinawa, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 84.1°F. The highest and lowest sea temperatures during the month were 86.4°F and 82.2°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 83.3°F. The highest and lowest sea temperatures during the month were 84.4°F and 82.6°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 83.3°F. The highest and lowest sea temperatures during the month were 86.2°F and 80.1°F.

Best time for vacation in Okinawa

Sunniest months:
July 9 days
August 8 days
September 7 days
Warmest months:
August 86.8 °F
July 86.6 °F
September 85.4 °F
Warmest sea temp:
August 84.5 °F
September 83.8 °F
July 83.6 °F
Coldest months:
January 64.4 °F
February 65.5 °F
December 68.0 °F
Rainiest months:
June 13 days
May 10 days
August 9 days
Windiest months:
December 15.4 mph
October 14.6 mph
January 14.4 mph

Okinawa on a weather map

Okinawa
+79°F
SW 6 mph
Feels like: +84°F
Precip.: 38%
Places in Japan:
Name
°F
+72°F
+73°F
+75°F
+72°F
+73°F
+75°F
+73°F
+73°F
+79°F
+75°F
+54°F
+72°F
+72°F
+73°F
+68°F
24 Hours Forecast
Okinawa
Local time: 19:54
September 15, tuesday
2100
79°F
SW
6 mph
September 16, wednesday
0000
77°F
SW
4 mph
0300
77°F
SW
4 mph
0600
77°F
SW
4 mph
0900
79°F
SW
4 mph
1200
81°F
SW
6 mph
1500
82°F
SW
5 mph
1800
79°F
SW
6 mph
Units of measurement: °C / °F