Sylhet Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sylhet.
Climate overview of Sylhet
Sylhet, Bangladesh, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 33°C (91°F), while January is the coolest at 25°C (77°F).
Rainfall is high, totalling around 4584 mm (180 in) per year. June is the wettest month and January the driest. The city also experiences distinct dry (November to January) and wet (March to October) seasons.
Sylhet Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sylhet - and find the best time to visit.
Monthly Temperature in Sylhet
The weather in Sylhet changes moderately throughout the year, offering enough variation to appreciate each season. Average maximum daytime temperatures range from a very warm 33°C (91°F) in August, the warmest time of the year, to a comfortable 25°C (77°F) during cooler months like January.
At night, you can expect temperatures ranging from 26°C (79°F) in August to around 12°C (54°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sylhet
Sylhet has a relatively rainy climate with high precipitation levels, averaging 4584 mm (180 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives heavy rainfall, averaging 859 mm (34 in) of precipitation, recorded across 18 rainy days. In contrast, the driest month January brings less rainfall, with 13 mm (0.5 in) over a single rainy day. For more details, please visit our Sylhet Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Sylhet
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February and December
- Warmest weather: May, June, July, August, September and October
- Fewest rainy days: January, February, November and December
- Wettest months: April, May, June, July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to January) and wet (March to October) seasons
Frequently asked questions about the climate in Sylhet
What is the best time to visit Sylhet?
January, February and December typically offer the most optimal weather in Sylhet. In contrast, March, April, May, June, July, August, September and October tend to have less optimal conditions. Sylhet has distinct dry (November to January) and wet (March to October) seasons.
What temperatures can I expect in Sylhet?
Daytime highs range from 25°C (77°F) in January to 33°C (91°F) in August. Nighttime lows range from 12°C (54°F) to 26°C (79°F).
How much rain does Sylhet get?
Annual rainfall is around 4584 mm (180 in). June is the wettest month with 859 mm (34 in), while January is the driest with 13 mm (0.5 in).
Sylhet 3-Day Forecast
Sylhet on the map
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