World Resorts Japan Tokyo Weather

Tokyo Sea Temperature in January

Average sea water temperature in January:
+54.5°F
Minimum sea water temperature in January: 59.5°F
Maximum sea water temperature in January: 48.9°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 51.9°F. The highest and lowest sea temperatures during the month were 54.3°F and 49.1°F.

Monthly sea water temperature in Tokyo, °F

Which Japan resorts have warmest sea in January?

Place name January 2026 January 2025
Okinawa 71.5°F 71.6°F
Nagasaki 62.0°F 60.3°F
Hakone 60.5°F 61.0°F
Atami 60.4°F 61.1°F
Kamakura 59.7°F 61.1°F
Fukuoka 57.0°F 56.8°F
Hiroshima 56.4°F 56.1°F
Yokohama 54.6°F 55.9°F
Nagoya 53.2°F 53.7°F
Kobe 52.8°F 52.5°F
Osaka 52.6°F 51.1°F
Nara 52.5°F 51.1°F
Tokyo 51.9°F 52.9°F
Kyoto 51.9°F 50.7°F
Noboribetsu 43.5°F 43.3°F
Sapporo 39.5°F 41.6°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 50.0 °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
+50°F
S 6 mph
Feels like: +48°F
Precip.: 60%
Places in Japan:
Name
°F
+46°F
+52°F
+52°F
+39°F
+46°F
+55°F
+46°F
+39°F
+63°F
+45°F
+27°F
+50°F
+48°F
+48°F
+41°F
24 Hours Forecast
Tokyo
Local time: 06:32
March 18, wednesday
0900
52°F
SW
5 mph
1200
57°F
N
6 mph
1500
61°F
N
12 mph
1800
59°F
N
11 mph
2100
57°F
NE
9 mph
March 19, thursday
0000
55°F
NE
9 mph
0300
54°F
NE
8 mph
0600
54°F
SE
9 mph
Units of measurement: °C / °F