Shiraoi Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Shiraoi.
Climate overview of Shiraoi
Shiraoi, Hokkaido, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 23°C (73°F) in August, while winters cool to -1°C (30°F) in January.
With around 1344 mm (53 in) of annual rain/snowfall, Shiraoi has a notably wet climate. The wettest month is August. The sunniest month is May, with 6.6 hours of sunshine per day on average.
Shiraoi Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Shiraoi — and find the best time to visit.
Monthly Temperature in Shiraoi
Depending on the time of the year, temperatures range from comfortable to very cold in Shiraoi. Average daytime temperatures reach a comfortable 23°C (73°F) in August. In January, the coolest month of the year, temperatures drop to a very cold -1°C (30°F).
At night, temperatures range from around 18°C (64°F) in August to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Shiraoi
Shiraoi has a relatively rain/snowy climate with high precipitation levels, averaging 1344 mm (53 in) of rain/snowfall annually. Shiraoi can be quite wet during August, receiving approximately 206 mm (8.1 in) of precipitation over 19 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 59 mm (2.3 in) of precipitation spread across 26 snowy days. For more details, please visit our Shiraoi Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Shiraoi
Shiraoi can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Shiraoi by Month
The relative humidity is high throughout the year in Shiraoi.
The city experiences its highest humidity in July, reaching 76%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Shiraoi
Rainfall during this time ranges from 112 mm (4.4 in) in June to 150 mm (5.9 in) in July. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during August and September, bringing heavy precipitation. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
Frequently asked questions about the climate in Shiraoi
What is the best time to visit Shiraoi?
July typically offers the most optimal weather in Shiraoi. In contrast, January, February, March, April, November and December tend to have less optimal conditions.
What temperatures can I expect in Shiraoi?
Daytime highs range from -1°C (30°F) in January to 23°C (73°F) in August. Nighttime lows range from -7°C (19°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Shiraoi get?
Annual rainfall is around 1344 mm (53 in). August is the wettest month with 206 mm (8.1 in), while January is the driest with 59 mm (2.3 in).
How sunny is Shiraoi?
Shiraoi receives around 1,749 hours of sunshine per year. May is the sunniest month with 199 hours, while December is the cloudiest with just 87 hours.
Shiraoi 3-Day Forecast
Shiraoi 3-Day Forecast
Shiraoi on the map
Shiraoi is highlighted — select any city to see its climate.
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