Average sea water temperature in May:
+66.9°F
| Minimum sea water temperature in May: | 74.1°F |
| Maximum sea water temperature in May: | 62.4°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 69.1°F. The highest and lowest sea temperatures during the month were 74.1°F and 64.4°F.
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| Nagasaki |
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| Nagasaki |
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| Nagasaki |
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| Nagasaki |
Monthly sea water temperature in Nagasaki, °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 Nagasaki
Nagasaki on a weather map
Places in Japan:
Name
°F
24 Hours Forecast
Nagasaki
Local time: 12:05
July 17, friday
1500
84°F
NE
9 mph
9 mph
1800
82°F
NE
7 mph
7 mph
2100
81°F
NE
4 mph
4 mph
July 18, saturday
0000
79°F
N
6 mph
6 mph
0300
79°F
N
6 mph
6 mph
0600
79°F
N
6 mph
6 mph
0900
81°F
N
9 mph
9 mph
1200
84°F
N
11 mph
11 mph
