World Resorts Japan Tokyo Weather

Tokyo Sea Temperature in December

Average sea water temperature in December:
+59.0°F
Minimum sea water temperature in December: 63.5°F
Maximum sea water temperature in December: 52.3°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 58.6°F. The highest and lowest sea temperatures during the month were 61.7°F and 54.9°F.

Monthly sea water temperature in Tokyo, °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 Tokyo

Sunniest months:
January 19 days
December 19 days
November 14 days
Warmest months:
August 90.8 °F
July 88.0 °F
September 83.4 °F
Warmest sea temp:
August 81.8 °F
September 78.7 °F
July 78.2 °F
Coldest months:
January 48.4 °F
February 49.9 °F
December 53.2 °F
Rainiest months:
June 7 days
September 6 days
October 5 days
Windiest months:
April 10.0 mph
May 9.3 mph
March 9.3 mph

Tokyo on a weather map

Tokyo
+45°F
S 5 mph
Feels like: +43°F
Precip.: 100%
Places in Japan:
Name
°F
+48°F
+48°F
+50°F
+54°F
+57°F
+54°F
+52°F
+41°F
+70°F
+52°F
+39°F
+45°F
+54°F
+50°F
+50°F
24 Hours Forecast
Tokyo
Local time: 11:39
December 24, wednesday
1200
45°F
S
5 mph
1500
45°F
S
9 mph
1800
46°F
S
5 mph
2100
48°F
S
4 mph
December 25, thursday
0000
48°F
S
4 mph
0300
50°F
NW
1 mph
0600
50°F
NE
2 mph
0900
52°F
S
3 mph
Units of measurement: °C / °F