Average sea water temperature in May:
+75.7°F
| Minimum sea water temperature in May: | 80.8°F |
| Maximum sea water temperature in May: | 71.4°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 75.4°F. The highest and lowest sea temperatures during the month were 78.4°F and 73.6°F.
Monthly sea water temperature in Okinawa, °F
Which Japan resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Okinawa | 75.4°F | 76.2°F |
| Nagasaki | 69.1°F | 66.0°F |
| Tokyo | 69.0°F | 66.8°F |
| Fukuoka | 68.7°F | 64.7°F |
| Yokohama | 68.5°F | 66.1°F |
| Nagoya | 68.0°F | 65.9°F |
| Kyoto | 67.7°F | 64.8°F |
| Kamakura | 67.7°F | 65.7°F |
| Atami | 67.1°F | 65.3°F |
| Nara | 67.0°F | 64.9°F |
| Hakone | 67.0°F | 65.5°F |
| Osaka | 66.5°F | 65.1°F |
| Kobe | 65.6°F | 64.1°F |
| Hiroshima | 64.6°F | 62.9°F |
| Sapporo | 52.1°F | 52.4°F |
| Noboribetsu | 47.9°F | 48.5°F |
Best time for vacation in Okinawa
Okinawa on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Okinawa
Local time: 20:03
September 15, tuesday
2100
79°F
SW
6 mph
6 mph
September 16, wednesday
0000
77°F
SW
4 mph
4 mph
0300
77°F
SW
4 mph
4 mph
0600
77°F
SW
4 mph
4 mph
0900
79°F
SW
4 mph
4 mph
1200
81°F
SW
6 mph
6 mph
1500
82°F
SW
5 mph
5 mph
1800
79°F
SW
6 mph
6 mph
