Climate Overview
The climate in Kagoshima is warm and mild. The average annual temperature is 18°C and approximately 2458mm of precipitation falls per year. Kagoshima receives a notable amount of rainfall throughout the year, including during its driest month. Kagoshima 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 6°C.
Temperature
Temperatures in Kagoshima vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 32°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 6°C and an average of 9°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.
Precipitation
Kagoshima is a very wet location, receiving approximately 2458mm of precipitation annually, which averages out to around 205mm per month. The wettest month is June, averaging 454mm of rainfall. July and September also tend to see above-average precipitation. The driest month is December, with just 75mm. That's 379mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Kagoshima is relatively calm, with an average annual wind speed of 3km/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 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
93 days until Autumn
It is currently summer in Kagoshima, which began on June 21, 2026. Kagoshima 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 32°C, while the coldest stretch bottoms out in January near 6°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 9 to 25°C. Rainfall is heavy, totalling around 581mm across the season with a monthly average of 194mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 21 to 32°C. Rainfall is heavy, totalling around 1018mm across the season with a monthly average of 339mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 12 to 29°C. Rainfall is heavy, totalling around 585mm across the season with a monthly average of 195mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 6 to 14°C. Precipitation is moderate at around 273mm for the season, averaging 91mm per month. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Kagoshima 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. 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.
