World Resorts Japan Hakone Weather

Hakone Sea Temperature in April

Average sea water temperature in April:
+61.1°F
Minimum sea water temperature in April: 67.1°F
Maximum sea water temperature in April: 55.9°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 62.2°F. The highest and lowest sea temperatures during the month were 65.7°F and 58.6°F.

Monthly sea water temperature in Hakone, °F

Which Japan resorts have warmest sea in April?

Place name April 2026 April 2025
Okinawa 74.5°F 71.5°F
Nagasaki 64.1°F 61.4°F
Atami 62.4°F 60.9°F
Hakone 62.2°F 61.1°F
Tokyo 62.0°F 59.1°F
Kamakura 61.9°F 61.1°F
Yokohama 61.5°F 59.6°F
Fukuoka 60.3°F 58.6°F
Nagoya 60.3°F 58.4°F
Osaka 59.5°F 57.6°F
Nara 59.4°F 57.4°F
Kyoto 59.4°F 57.4°F
Kobe 58.9°F 56.5°F
Hiroshima 58.5°F 57.2°F
Sapporo 46.3°F 44.9°F
Noboribetsu 41.1°F 42.1°F

Best time for vacation in Hakone

Sunniest months:
January 17 days
December 17 days
May 13 days
Warmest months:
August 86.7 °F
July 84.2 °F
September 81.3 °F
Warmest sea temp:
August 80.5 °F
September 78.5 °F
July 76.9 °F
Coldest months:
January 48.9 °F
February 49.7 °F
December 53.8 °F
Rainiest months:
July 8 days
June 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
+77°F
S 8 mph
Feels like: +81°F
Precip.: 26%
Places in Japan:
Name
°F
+72°F
+77°F
+77°F
+73°F
+77°F
+82°F
+77°F
+75°F
+81°F
+79°F
+54°F
+75°F
+77°F
+77°F
+73°F
24 Hours Forecast
Hakone
Local time: 06:45
August 29, saturday
0900
75°F
SW
6 mph
1200
75°F
SW
9 mph
1500
73°F
SW
20 mph
1800
72°F
S
16 mph
2100
72°F
S
14 mph
August 30, sunday
0000
72°F
S
11 mph
0300
72°F
S
8 mph
0600
72°F
SW
9 mph
Units of measurement: °C / °F