World Resorts Japan Nagasaki Weather

Nagasaki Sea Temperature in December

Average sea water temperature in December:
+64.6°F
Minimum sea water temperature in December: 69.6°F
Maximum sea water temperature in December: 59.7°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 69.6°F and 66.0°F.

Monthly sea water temperature in Nagasaki, °F

Which Japan resorts have warmest sea in December?

Place name December 2025 December 2024
Okinawa 75.6°F 75.3°F
Nagasaki 67.3°F 64.1°F
Atami 66.3°F 65.8°F
Hakone 65.9°F 65.7°F
Kamakura 65.8°F 65.1°F
Fukuoka 62.8°F 62.2°F
Hiroshima 62.0°F 61.6°F
Kobe 60.8°F 60.1°F
Yokohama 60.6°F 60.4°F
Nagoya 59.7°F 60.7°F
Osaka 59.7°F 58.7°F
Nara 59.3°F 58.2°F
Tokyo 58.6°F 58.4°F
Kyoto 57.6°F 56.4°F
Noboribetsu 49.9°F 50.2°F
Sapporo 45.2°F 45.2°F

Best time for vacation in Nagasaki

Sunniest months:
October 18 days
May 14 days
March 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 50.4 °F
February 51.7 °F
December 53.6 °F
Rainiest months:
July 12 days
June 11 days
August 10 days
Windiest months:
February 10.8 mph
December 10.8 mph
January 10.8 mph

Nagasaki on a weather map

Nagasaki
+57°F
S 2 mph
Feels like: +59°F
Precip.: 100%
Places in Japan:
Name
°F
+48°F
+48°F
+52°F
+54°F
+57°F
+54°F
+54°F
+41°F
+72°F
+54°F
+37°F
+46°F
+54°F
+50°F
+50°F
24 Hours Forecast
Nagasaki
Local time: 11:48
December 24, wednesday
1200
57°F
S
2 mph
1500
57°F
SW
2 mph
1800
59°F
SE
6 mph
2100
59°F
SE
6 mph
December 25, thursday
0000
57°F
S
6 mph
0300
55°F
SE
10 mph
0600
55°F
SE
16 mph
0900
52°F
SE
21 mph
Units of measurement: °C / °F