ClimateForecastDecemberJanuary >>

Shirahama Climate by Month

The temperature in Shirahama can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and cold during the cooler months. It also experiences much rainfall throughout the year. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

Visitors to Shirahama can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 30°C in August. In January, the coolest month of the year, temperatures drop to a chilly 11°C. At night, expect cooler temperatures, averaging 6°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Shirahama is known for its substantial rainfall, with annual precipitation reaching 2280 mm. Shirahama can be quite wet during June, receiving approximately 340 mm of precipitation over 19 rainy days.

In contrast December, experiences much drier conditions, with 104 mm of rainfall, spread across 12 rainy days.

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

Sunshine over the year

Shirahama can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 7.6 hours of sunshine daily. In contrast, the city experiences much darker days in February, with only 4.5 hours of sunlight per day.

Monthly hours of sunshine

Data from: Wakayama, Japan (63 KM, 39 Miles).

Daily hours of sunshine

Data from: Wakayama, Japan (63 KM, 39 Miles).

The best time of year to visit Shirahama 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 Shirahama?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Shirahama?
    August has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Shirahama?
    The coldest month is January with an average maximum temperature of 11°C.
  • Which is the wettest month in Shirahama?
    June tops the wettest month list with 340 mm of rainfall.
  • Which is the driest month in Shirahama?
    December is the driest month with 104 mm of precipitation.
  • Which is the sunniest month in Shirahama?
    August is the sunniest month with an average of 228 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 Shirahama

    Sat   Dec 14
    10°C | 4°C
    NW 40 km/h
    2.2 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Sun   Dec 15
    10°C | 5°C
    NW 25 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Dec 16
    11°C | 7°C
    NW 22 km/h
    partly cloudy and no rain

    partly cloudy and no rain