Sylhet Weather in August
In Sylhet, August brings very high daytime temperatures around 33°C (91°F), with nights cooling to 26°C (79°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Sylhet in August
As part of the rainy season, Sylhet sees around 17 days of rain in August, with an average of 641 mm (25 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Sylhet in August
Expect highs of 33°C (91°F) in Sylhet in August, with nights dropping to around 26°C (79°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference. Keep in mind, these temperatures are averages, and some days might be even warmer. Dress suitably to manage the heat.If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit Sylhet. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bangladesh, check out our Sylhet's climate page.
Sylhet Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
33°C (91°F)
Chance of Rain
56%
Precipitation
641 mm (25 in)
Rainy days
17 days
Daily Historical Temperatures
46-year average (1977-2025)
Based on our historical records, temperatures in Sylhet typically stay consistent throughout August, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in August
Historical weather for Sylhet in August
Browse day-by-day weather records for Sylhet spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sylhet historical weather extremes in August
Based on weather observations in Sylhet between 2004 and 2025, these are the recorded extremes during August.
- The warmest day in August was on August 12, 2019, with a maximum of 38°C (100°F).
- The lowest daytime temperature in August was 26°C (79°F), recorded on August 29, 2008.
- Nighttime temperatures dropped to 18°C (64°F) on August 20, 2024, marking the coldest August night on record.
Best Places in Bangladesh in August
Find out more about the weather in Bangladesh and which places have the best travel conditions in this month. See all of Bangladesh in August →
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What to Wear in Sylhet in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in Sylhet in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bangladesh, check out our Sylhet's climate page.
See the full Sylhet climate overview or explore weather in Bangladesh.
