World Resorts Japan Tokyo Weather

Tokyo Sea Temperature in December

Average sea water temperature in December:
+58.9°F
Minimum sea water temperature in December: 63.5°F
Maximum sea water temperature in December: 50.9°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 57.5°F. The highest and lowest sea temperatures during the month were 61.7°F and 50.9°F.

Monthly sea water temperature in Tokyo, °F

Which Japan resorts have warmest sea in December?

Place name December 2025 December 2024
Okinawa 75.1°F 75.3°F
Nagasaki 66.7°F 64.1°F
Atami 65.9°F 65.8°F
Hakone 65.6°F 65.7°F
Kamakura 65.2°F 65.1°F
Fukuoka 62.2°F 62.2°F
Hiroshima 61.5°F 61.6°F
Kobe 60.1°F 60.1°F
Yokohama 59.7°F 60.4°F
Nagoya 59.4°F 60.7°F
Osaka 59.0°F 58.7°F
Nara 58.5°F 58.2°F
Tokyo 57.5°F 58.4°F
Kyoto 56.7°F 56.4°F
Noboribetsu 49.2°F 50.2°F
Sapporo 44.5°F 45.2°F

Best time for vacation in Tokyo

Sunniest months:
January 19 days
December 18 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 53.1 °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
+37°F
SE 1 mph
Feels like: +37°F
Precip.: 0%
Places in Japan:
Name
°F
+37°F
+39°F
+41°F
+32°F
+41°F
+34°F
+34°F
+23°F
+59°F
+36°F
+23°F
+37°F
+36°F
+39°F
+34°F
24 Hours Forecast
Tokyo
Local time: 07:56
January 12, monday
0900
37°F
SE
1 mph
1200
41°F
N
5 mph
1500
45°F
N
5 mph
1800
45°F
N
8 mph
2100
43°F
NE
4 mph
January 13, tuesday
0000
41°F
SE
5 mph
0300
39°F
SE
4 mph
0600
39°F
NE
4 mph
Units of measurement: °C / °F