Climate Insights for Kashiwazaki

The climate in Kashiwazaki is temperate. The average annual temperature is 13°C and approximately 2177mm of precipitation falls per year. Kashiwazaki receives a notable amount of rainfall throughout the year, including during its driest month. Kashiwazaki 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 -2°C. Kashiwazaki experiences heavy snowfall, typically from January through December.

Temperatures in Kashiwazaki vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 26°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Kashiwazaki is a very wet location, receiving approximately 2177mm of precipitation annually, which averages out to around 181mm per month. The wettest month is July, averaging 264mm of rainfall. December and January also tend to see above-average precipitation. The driest month is May, with just 129mm. That's 135mm less than July, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Kashiwazaki receives heavy snowfall, accumulating around 293cm annually from January through December. The snowiest month is January, with approximately 111cm. Winter travel should account for significant snow cover.

Kashiwazaki is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 13km/h in spring, 9km/h in summer, 11km/h in autumn.

It is currently spring in Kashiwazaki, which began on March 20, 2026. Kashiwazaki 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 31°C, while the coldest stretch bottoms out in January near -2°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The table below shows monthly climate averages for Kashiwazaki 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.