Climate Overview
The climate in Tarutung is warm and mild. The average annual temperature is 21°C and approximately 3427mm of precipitation falls per year. Tarutung receives a notable amount of rainfall throughout the year, including during its driest month. Tarutung sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tarutung has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is March, when average highs reach 27°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 17°C and an average of 21°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Tarutung is a very wet location, receiving approximately 3427mm of precipitation annually, which averages out to around 286mm per month. The wettest month is November, averaging 412mm of rainfall. December and April also tend to see above-average precipitation. The driest month is July, with just 160mm. That's 252mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Tarutung is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 7km/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
89 days until Summer
It is currently spring in Tarutung, which began on March 20, 2026. Tarutung sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 27°C, while the coldest stretch bottoms out in July near 17°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 906mm across the season with a monthly average of 302mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 17 to 27°C. Rainfall is heavy, totalling around 615mm across the season with a monthly average of 205mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 17 to 26°C. Rainfall is heavy, totalling around 1047mm across the season with a monthly average of 349mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 859mm across the season with a monthly average of 286mm. 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 Tarutung 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.
