Climate Insights for Siliguri

The climate in Siliguri is warm and mild. The average annual temperature is 22°C and approximately 3404mm of precipitation falls per year. July is the wettest month, receiving around 1128mm of rainfall. Siliguri is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, April, June. The coldest months are January, December, February, when temperatures can drop to 10°C.

Temperatures in Siliguri vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 10°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.

Siliguri is a very wet location, receiving approximately 3404mm of precipitation annually, which averages out to around 284mm per month. The wettest month is July, averaging 1128mm of rainfall. June and September also tend to see above-average precipitation. The driest month is November, with just 5mm. That's 1123mm 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.

Siliguri is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 0km/h gap between the calmest and windiest months.

It is currently summer in Siliguri, which began on June 21, 2026. Siliguri 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 31°C, while the coldest stretch bottoms out in January near 10°C. Autumn is next, beginning on September 23, 2026 — 62 days from now.

The best time to visit Siliguri is during February, March, April, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 41mm per month. By contrast, August can be uncomfortably hot with highs reaching 31°C, while January is the coldest period with lows dropping to 10°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Siliguri 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.