Climate Overview
The climate in Nishinoomote is warm and mild. The average annual temperature is 21°C and approximately 2421mm of precipitation falls per year. Nishinoomote receives a notable amount of rainfall throughout the year, including during its driest month. Nishinoomote 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, December, when temperatures can drop to 12°C.
Temperature
Nishinoomote sees moderate temperature variation throughout the year, ranging from 12°C to 29°C. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 12°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 4°C shift in average temperatures.
Precipitation
Nishinoomote is a very wet location, receiving approximately 2421mm of precipitation annually, which averages out to around 202mm per month. The wettest month is June, averaging 418mm of rainfall. September and July also tend to see above-average precipitation. The driest month is December, with just 118mm. That's 300mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Nishinoomote 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 January, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.
Seasons
90 days until Autumn
It is currently summer in Nishinoomote, which began on June 21, 2026. Nishinoomote 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 12°C. Autumn is next, beginning on September 23, 2026 — 90 days from now.
Spring
Temperatures range from 15 to 23°C. Rainfall is heavy, totalling around 593mm across the season with a monthly average of 198mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 793mm across the season with a monthly average of 264mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 19 to 27°C. Rainfall is heavy, totalling around 648mm across the season with a monthly average of 216mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 12 to 17°C. Rainfall is heavy, totalling around 387mm across the season with a monthly average of 129mm. Winds are generally light, averaging 8km/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 Nishinoomote 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.
