World Resorts Japan Tokyo Weather

Tokyo Sea Temperature in January

Average sea water temperature in January:
+54.6°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 53.3°F. The highest and lowest sea temperatures during the month were 54.3°F and 51.4°F.

Monthly sea water temperature in Tokyo, °F

Which Japan resorts have warmest sea in January?

Place name January 2026 January 2025
Okinawa 72.4°F 71.6°F
Nagasaki 62.9°F 60.3°F
Hakone 61.9°F 61.0°F
Atami 61.9°F 61.1°F
Kamakura 61.1°F 61.1°F
Fukuoka 58.6°F 56.8°F
Hiroshima 58.1°F 56.1°F
Yokohama 55.8°F 55.9°F
Nagoya 55.7°F 53.7°F
Kobe 55.2°F 52.5°F
Osaka 55.1°F 51.1°F
Nara 54.6°F 51.1°F
Kyoto 53.5°F 50.7°F
Tokyo 53.3°F 52.9°F
Noboribetsu 45.2°F 43.3°F
Sapporo 40.6°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 48.4 °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
+48°F
S 3 mph
Feels like: +48°F
Precip.: 0%
Places in Japan:
Name
°F
+50°F
+52°F
+48°F
+50°F
+52°F
+46°F
+48°F
+28°F
+66°F
+50°F
+27°F
+48°F
+50°F
+52°F
+48°F
24 Hours Forecast
Tokyo
Local time: 08:51
January 16, friday
0900
48°F
S
3 mph
1200
55°F
SW
4 mph
1500
59°F
S
2 mph
1800
55°F
S
6 mph
2100
50°F
S
6 mph
January 17, saturday
0000
48°F
S
6 mph
0300
46°F
S
5 mph
0600
45°F
S
6 mph
Units of measurement: °C / °F