Climate Insights for Sunagawa

The climate in Sunagawa is cool. The average annual temperature is 8°C and approximately 1354mm of precipitation falls per year. Sunagawa receives a notable amount of rainfall throughout the year, including during its driest month. Sunagawa is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -11°C. Sunagawa experiences heavy snowfall, typically from January through December.

Sunagawa has a wide annual temperature range, spanning 36°C from the coldest to warmest months. August is the warmest month, though highs remain moderate at 25°C with a mean of 21°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -7°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Sunagawa is a fairly wet location, receiving approximately 1354mm of precipitation annually, which averages out to around 113mm per month. The wettest month is August, averaging 225mm of rainfall. November and October also tend to see above-average precipitation. The driest month is January, with just 73mm. That's 152mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Sunagawa receives heavy snowfall, accumulating around 341cm annually from January through December. The snowiest month is December, with approximately 90cm. Winter travel should account for significant snow cover.

Sunagawa is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

It is currently summer in Sunagawa, which began on June 21, 2026. Sunagawa is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 25°C, while the coldest stretch bottoms out in January near -11°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The table below shows monthly climate averages for Sunagawa based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.