World Resorts Japan Hakone Weather

Hakone Sea Temperature in May

Average sea water temperature in May:
+65.5°F
Minimum sea water temperature in May: 69.6°F
Maximum sea water temperature in May: 60.8°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 65.5°F. The highest and lowest sea temperatures during the month were 68.2°F and 62.4°F.

Monthly sea water temperature in Hakone, °F

Which Japan resorts have warmest sea in May?

Place name May 2025 May 2024
Okinawa 76.2°F 76.7°F
Tokyo 66.8°F 67.9°F
Yokohama 66.1°F 67.2°F
Nagasaki 66.0°F 67.0°F
Nagoya 65.9°F 66.7°F
Kamakura 65.7°F 66.9°F
Hakone 65.5°F 66.9°F
Atami 65.3°F 67.0°F
Osaka 65.1°F 64.6°F
Nara 64.9°F 64.8°F
Kyoto 64.8°F 65.2°F
Fukuoka 64.7°F 66.8°F
Kobe 64.1°F 63.6°F
Hiroshima 62.9°F 63.2°F
Sapporo 52.4°F 52.7°F
Noboribetsu 48.5°F 49.3°F

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 48.9 °F
February 49.7 °F
December 53.8 °F
Rainiest months:
July 8 days
August 7 days
September 7 days
Windiest months:
April 8.5 mph
March 8.5 mph
October 8.0 mph

Hakone on a weather map

Hakone
+68°F
NE 11 mph
Feels like: +68°F
Precip.: 0%
Places in Japan:
Name
°F
+68°F
+66°F
+66°F
+73°F
+70°F
+68°F
+72°F
+77°F
+72°F
+75°F
+48°F
+72°F
+72°F
+68°F
+70°F
24 Hours Forecast
Hakone
Local time: 12:33
April 28, tuesday
1500
70°F
NE
14 mph
1800
64°F
NE
15 mph
2100
64°F
NE
14 mph
April 29, wednesday
0000
64°F
NE
13 mph
0300
63°F
E
4 mph
0600
63°F
S
3 mph
0900
66°F
SW
7 mph
1200
68°F
W
6 mph
Units of measurement: °C / °F