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Isehara Climate by Month

The temperature in Isehara can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and cold during the cooler months. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Visitors to Isehara can expect significant temperature changes throughout the year. Average daytime temperatures range from a comfortable 29°C in August, the warmest time of the year, to a chilly 10°C during cooler months like January. At night, temperatures typically average around 2°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Isehara is known for its substantial rain/snowfall, with annual precipitation reaching 1970 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, September receives heavy rainfall, averaging 244 mm of precipitation, recorded across 19 rainy days. In contrast, the drier season, December brings less rainfall, with 83 mm over 8 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

While the amount of sunshine in Isehara varies throughout the year, all seasons offer their own charm. Enjoy up to 6.9 hours of daily sun in August, and experience slightly darker atmosphere in September, with about 4.4 hours of daily sunlight.

Monthly hours of sunshine

Data from: Yokohama, Japan (29 KM, 18 Miles).

Daily hours of sunshine

Data from: Yokohama, Japan (29 KM, 18 Miles).

The best time of year to visit Isehara in Japan

During the months of May, June and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Isehara?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Isehara?
    August has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Isehara?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Isehara?
    September tops the wettest month list with 244 mm of rainfall.
  • Which is the driest month in Isehara?
    December is the driest month with 83 mm of precipitation.
  • Which is the sunniest month in Isehara?
    August is the sunniest month with an average of 208 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Isehara

    Thu   Dec 12
    10°C | 1°C
    N 11 km/h
    2.2 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain

    Fri   Dec 13
    11°C | 2°C
    NW 4 km/h
    1.5 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain

    Sat   Dec 14
    12°C | 2°C
    NE 11 km/h
    0.3 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain