Climate Overview
The climate in Kupang is hot. The average annual temperature is 27°C and approximately 1281mm of precipitation falls per year. January is the wettest month, receiving around 296mm of rainfall. Kupang is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: November, October, September. The coldest months are August, July, September, when temperatures can drop to 23°C.
Temperature
Kupang sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is November, when average highs reach 34°C and the mean temperature sits around 29°C. August is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.
Precipitation
Kupang is a fairly wet location, receiving approximately 1281mm of precipitation annually, which averages out to around 107mm per month. The wettest month is January, averaging 296mm of rainfall. December and March also tend to see above-average precipitation. The driest month is August, with just 5mm. That's 290mm less than January, 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
Kupang 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 June, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 3km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
93 days until Spring
It is currently winter in Kupang, which began on June 21, 2026. Kupang is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in November at around 34°C, while the coldest stretch bottoms out in August near 23°C. Spring is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 23 to 34°C. Precipitation is moderate at around 152mm for the season, averaging 51mm per month. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 25 to 31°C. Rainfall is heavy, totalling around 761mm across the season with a monthly average of 254mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 32°C. Rainfall is heavy, totalling around 344mm across the season with a monthly average of 115mm. Winds are generally light, averaging 3km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 31°C. Precipitation is minimal, with only around 24mm for the entire season. Winds are generally light, averaging 5km/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 Kupang 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.
