Unzen Climate by Month
The temperature in Unzen can vary greatly throughout the year.
The temperatures shift from very warm
to cold.
It also experiences much rainfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to chilly in Unzen. Average daytime temperatures reach a very warm 32°C in August. In January, the coolest month of the year, temperatures drop to a chilly 11°C. At night, expect cooler temperatures, averaging 5°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Unzen has a relatively rainy climate with high precipitation levels, averaging 2207 mm of rainfall annually. Unzen can be quite wet during June, receiving approximately 453 mm of precipitation over 19 rainy days. In contrast January, experiences much drier conditions, with 80 mm of rainfall, spread across 19 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
Sunshine over the year
Unzen can be enjoyed more throughout the sunniest month of August under a blue sky, with approximately 7.0 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 3.5 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is moderate throughout the year in Unzen.
Relative humidity over the year
The best time of year to visit Unzen in Japan
During the months of May 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:
Rainy season in Unzen occurs in the months of April, May, June, July, August and September.
August has an average maximum temperature of 32°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 11°C.
June tops the wettest month list with 453 mm of rainfall.
January is the driest month with 80 mm of precipitation.
August is the sunniest month with an average of 209 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.