Measurements:
°C
°F
CURRENT WEATHER
06:59
Hakone
74°F
SW 6 mph
Feels like: 74°F
Precip: 69%
World Resorts Japan Hakone Weather

7 Day Weather Forecast

09.29
tue
DAY
68°F
SW 11 mph
precip
90%
NIGHT
66°F
SW 9 mph
precip
78%
09.30
wed
DAY
68°F
SW 10 mph
precip
28%
NIGHT
68°F
SW 6 mph
precip
28%
10.01
thu
DAY
72°F
NE 5 mph
precip
58%
NIGHT
72°F
S 8 mph
precip
89%
10.02
fri
DAY
70°F
SW 7 mph
precip
20%
NIGHT
68°F
SW 9 mph
precip
7%
10.03
sat
DAY
70°F
SW 12 mph
precip
10%
NIGHT
64°F
S 15 mph
precip
5%
10.04
sun
DAY
74°F
SW 21 mph
precip
1%
NIGHT
66°F
S 17 mph
precip
19%
10.05
mon
DAY
72°F
S 24 mph
precip
12%
NIGHT
66°F
S 20 mph
precip
18%

Hakone Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Hakone was 25.7°F. The maximum and minimum values were 24.7°F and 26.8°F respectively.

Hakone on the Weather Map

Best Time to Visit Hakone
The most sunny months:
January 17 days
December 17 days
May 13 days
The most warm months:
August 90.8 °F
July 88.1 °F
September 84.3 °F
Warmest sea temperature:
August 83.9 °F
September 81.7 °F
July 79.8 °F
The most cold months:
January 48.7 °F
February 49.7 °F
December 54.3 °F
The most rainy months:
July 8 days
June 7 days
September 7 days
The most windy months:
April 8 mph
March 8 mph
October 7 mph
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