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Hakone weather in January

Weather in Hakone: January

Average day temperature: 49.0°F
Average night temperature: 39.5°F
Sea water temperature: 60.5°F
Number of sunny days: 17 days
Day length: 9.8 - 10.4 hours
Number of rainy days: 3 days
Precipitation totals: 1.8 in.

Air temperature in January, °F

Show year:
2025
2024
2023

The highest day temperature during January of 2025 was 54°F. At the same time the lowest night temperature was 36°F. Daily and nightly averages during January were 48.5°F and 41.7°F.

Sea water temperature in Hakone in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 61.0°F. The highest and lowest sea temperatures during the month were 62.6°F and 59.9°F.

Sunny, partly cloudy and cloudy days

Mostly all days in January are sunny but cloudy days are also possible.

Precipitation total in January, in.

Precipitation total value in Hakone in January is 1.6 in. Other months of the year show relatively similar values.

Wind speed in January, mph

The average wind speed value in January is 7.1 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 6.1.

Best time for vacation in Hakone

Sunniest months:
January 17 days
December 17 days
November 13 days
Warmest months:
August 87.1 °F
July 84.5 °F
September 81.3 °F
Warmest sea temp:
August 80.4 °F
September 78.5 °F
July 76.8 °F
Coldest months:
January 49.0 °F
February 49.7 °F
December 53.9 °F
Rainiest months:
July 8 days
August 7 days
April 7 days
Windiest months:
April 8.6 mph
March 8.5 mph
October 8.0 mph

Hakone on a weather map

Hakone
+43°F
S 2 mph
Feels like: +41°F
Precip.: 0%
Places in Japan:
Name
°F
+43°F
+48°F
+50°F
+37°F
+43°F
+43°F
+41°F
+39°F
+63°F
+45°F
+30°F
+46°F
+41°F
+43°F
+36°F
24 Hours Forecast
Hakone
Local time: 23:53
December 06, saturday
0000
43°F
S
2 mph
0300
41°F
SE
2 mph
0600
41°F
S
4 mph
0900
48°F
SW
3 mph
1200
52°F
N
3 mph
1500
54°F
N
5 mph
1800
48°F
E
6 mph
2100
46°F
E
7 mph
Units of measurement: °C / °F