Climate Overview
The climate in Trongsa is cool. The average annual temperature is 7°C and approximately 3288mm of precipitation falls per year. Trongsa receives a notable amount of rainfall throughout the year, including during its driest month. Trongsa 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 -8°C. Snowfall occurs from January to December, with around 164cm accumulating over the season.
Temperature
Temperatures in Trongsa vary considerably across the year, with a 25°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 17°C with a mean of 14°C. The coldest month is January, when overnight lows fall to -8°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.
Precipitation
Trongsa is a very wet location, receiving approximately 3288mm of precipitation annually, which averages out to around 274mm per month. The wettest month is July, averaging 669mm of rainfall. June and August also tend to see above-average precipitation. The driest month is December, with just 35mm. That's 633mm less than July, 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. Snowfall is a regular feature from January to December, with around 164cm accumulating over the season. March typically sees the most snow at around 45cm.
Wind
Trongsa 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 May, averaging 7km/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. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Trongsa, which began on March 20, 2026. Trongsa 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 17°C, while the coldest stretch bottoms out in January near -8°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -2 to 14°C. Rainfall is heavy, totalling around 704mm across the season with a monthly average of 235mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 10 to 17°C. Rainfall is heavy, totalling around 1784mm across the season with a monthly average of 595mm. Winds are generally light, averaging 7km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -1 to 16°C. Rainfall is heavy, totalling around 621mm across the season with a monthly average of 207mm. Expect around 9cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -8 to 7°C. Precipitation is moderate at around 179mm for the season, averaging 60mm per month. Expect around 90cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Trongsa 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.
