Omachi Climate by Month
The temperature in Omachi can vary quite a bit throughout the year.
Temperatures can be warm during the warmest months,
and very cold during the cooler months.
It also has a notably wet climate with much precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
Visitors to Omachi can expect significant temperature changes throughout the year. Average daytime temperatures range from a comfortable 26°C in August, the warmest time of the year, to a very cold -1°C during cooler months like January. At night, temperatures typically average around -9°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Omachi is known for its substantial rain/snowfall, with annual precipitation reaching 2875 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, July receives heavy rainfall, averaging 400 mm of precipitation, recorded across 21 rainy days. In contrast, the drier season, November brings less rainfall, with 173 mm over 17 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Omachi. While April receives considerable daily sunshine with up to 5.9 hours, January marks the darkest time of the year, where sunshine is scarce with only 2.7 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Omachi in Japan
During the months of June, July and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.The average rainfall figures in Omachi are quite high. Throughout the year, you have a chance of prolonged precipitation. So no matter what time of year you go, you will always have to deal with a high number of rainy days. This makes it more challenging to point out the best time of year to visit. If we needed to pick one month we would choose April which is the sunniest month of the year.
Other facts from our historical weather data:
The coldest season / winter is in the following months: January, February and December.
August has an average maximum temperature of 26°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of -1°C.
July tops the wettest month list with 400 mm of rainfall.
November is the driest month with 173 mm of precipitation.
April is the sunniest month with an average of 177 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.
