Climate Overview
The climate in Minamidaitojima is warm and mild. The average annual temperature is 24°C and approximately 1572mm of precipitation falls per year. Minamidaitojima receives a notable amount of rainfall throughout the year, including during its driest month. Minamidaitojima 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 February, January, March, when temperatures can drop to 18°C.
Temperature
Minamidaitojima sees moderate temperature variation throughout the year, ranging from 18°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 18°C and an average of 19°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.
Precipitation
Minamidaitojima is a fairly wet location, receiving approximately 1572mm of precipitation annually, which averages out to around 131mm per month. The wettest month is June, averaging 211mm of rainfall. May and September also tend to see above-average precipitation. The driest month is February, with just 57mm. That's 154mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Minamidaitojima is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5km/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.
Seasons
88 days until Autumn
It is currently summer in Minamidaitojima, which began on June 21, 2026. Minamidaitojima 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 29°C, while the coldest stretch bottoms out in February near 18°C. Autumn is next, beginning on September 23, 2026 — 88 days from now.
Spring
Temperatures range from 19 to 25°C. Rainfall is heavy, totalling around 364mm across the season with a monthly average of 121mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 465mm across the season with a monthly average of 155mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 461mm across the season with a monthly average of 154mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 22°C. Precipitation is moderate at around 282mm for the season, averaging 94mm per month. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Minamidaitojima is during January, February, March and April, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 71mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Minamidaitojima 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.
