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 48.3 °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
+43°F
S 17 mph
Feels like: +36°F
Precip.: 100%
Places in Japan:
Name
°F
+46°F
+46°F
+48°F
+52°F
+50°F
+54°F
+50°F
+28°F
+64°F
+50°F
+19°F
+43°F
+50°F
+46°F
+46°F
24 Hours Forecast
Tokyo
Local time: 01:41
February 26, thursday
0300
43°F
S
17 mph
0600
43°F
S
17 mph
0900
46°F
S
17 mph
1200
54°F
S
19 mph
1500
57°F
S
17 mph
1800
54°F
S
16 mph
2100
50°F
S
14 mph
February 27, friday
0000
50°F
S
12 mph
Units of measurement: °C / °F