World Resorts Japan Nagasaki Weather

Nagasaki Sea Temperature in May

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.

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

Sunniest months:
October 18 days
May 14 days
August 13 days
Warmest months:
August 87.6 °F
July 84.4 °F
September 82.9 °F
Warmest sea temp:
August 82.8 °F
September 80.3 °F
July 79.0 °F
Coldest months:
January 50.3 °F
February 51.8 °F
December 53.7 °F
Rainiest months:
July 12 days
June 11 days
August 10 days
Windiest months:
January 10.8 mph
February 10.7 mph
December 10.7 mph

Nagasaki on a weather map

Current weather
03:50
Nagasaki
+70°F
SW 9 mph
Feels like: +70°F
Precip.: 70%
Places in Japan:
Name
°F
Atami
+68°F
Yokohama
+72°F
Kamakura
+72°F
Kyoto
+68°F
Kobe
+70°F
Nagasaki
+70°F
Nagoya
+70°F
Nara
+68°F
Okinawa
+77°F
Osaka
+70°F
Sapporo
+61°F
Tokyo
+72°F
Fukuoka
+68°F
Hakone
+70°F
Hiroshima
+66°F
all places
24 Hours Forecast
Nagasaki
Local time: 03:50
June 27, saturday
0600
70°F
SW
7 mph
0900
70°F
S
6 mph
1200
77°F
SE
1 mph
1500
75°F
SW
5 mph
1800
73°F
S
5 mph
2100
72°F
SW
5 mph
June 28, sunday
0000
72°F
S
3 mph
0300
70°F
S
3 mph
Units of measurement: °C / °F