Swimming in Hakone in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Hakone in september 2025.

In september, according to seasonal norms, the sea temperature in Hakone is:

Minimum: 75°F

Average: 79°F

Maximum: 83°F

Other useful seasonal weather averages in september:

  • Outside temperature: 70°F to 80°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 13.7mph
  • It rains a total of 7.3in, over 7 day(s).

Should we swim in Hakone in september?

Yes! The water temperature in Hakone in september is pleasant

Swimming in september is pleasant in Hakone and the surrounding area. The sea temperature is 79°F on average (min/max: 75°F/83°F), allowing you to swim for a long time and enjoy water sports.

Note also that in september, the climate is good with an average outside temperature of 75°F, 7.3in of precipitation (over 7 days) and 85.83 % humidity.

Water and normal seasonal temperatures in Hakone in september

September
Average sea temperature 79°F
Minimum sea temperature 75°F
Maximum sea temperature 83°F
Average outside temperature 76°F
Maximum outside temperature 81°F
Minimum outside temperature 72°F
Wind speed 9.9mph
Wind temperature 72°F
Precipitation 7.3in
Number of days of rain 7 jour(s)
(23%)
Humidity 86%
Visibility in kilometers 9.19km
Cloud cover 42%
Our opinion pleasant swimming

Chart of the tides in september 2025

Tide times in september 2025 in Hakone

Swim elsewhere in Japan in september

City Average T° Max. T° Our opinion
Tokyo in september78°F82°Fpleasant swimming
Fukuoka in september79°F83°Fpleasant swimming
Hiroshima in september79°F82°Fpleasant swimming
Kochi in september81°F83°Fideal swimming
Nagoya in september79°F83°Fpleasant swimming
Okinawa in september83°F85°Fideal swimming
Osaka in september80°F83°Fideal swimming
Sapporo (Hokkaido) in september69°F74°Fcool swimming
Abashiri in september63°F68°Fcold swimming
Akita in september76°F80°Fpleasant swimming
Aomori in september73°F78°Fpleasant swimming
Hakodate in september70°F75°Fcool swimming
Izumo in september79°F82°Fideal swimming
Kagoshima (Kyushu) in september82°F84°Fideal swimming
Kanazawa in september79°F83°Fpleasant swimming
Kobe in september79°F83°Fideal swimming
Nagasaki in september80°F83°Fideal swimming
Nago in september83°F85°Fideal swimming
Naha in september83°F85°Fideal swimming
Okayama in september79°F82°Fpleasant swimming

Swim in Japan in september: sea temperature by city

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