The best times to visit Sylhet for ideal weather are

November 5th to March 11th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Sylhet Travel Info

Weather in Sylhet


Average temperatures in Sylhet vary somewhat. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 30th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Sylhet, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 92.7°F (33.7°C) with temperatures rarely dropping below 79°F (26.1°C) at night.

Sylhet Temperatures (Fahrenheit)


Sylhet Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Sylhet Perceived Temperature (F)


Sylhet Perceived Temperature (C)



Average Sylhet Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 78.8 65.4 57.1
Feb 83.3 69.3 59.8
Mar 90.5 77.2 67.7
Apr 89.6 79 71.1
May 89.2 80.5 74.2
Jun 89.1 81.9 77.6
Jul 91.2 83.3 78.7
Aug 90.3 82.5 78.3
Sep 90.7 82.5 77.8
Oct 90.6 80.4 73.9
Nov 86.1 73.5 66.1
Dec 80.2 67.7 59.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 26 18.6 13.9
Feb 28.5 20.7 15.4
Mar 32.5 25.1 19.8
Apr 32 26.1 21.7
May 31.8 26.9 23.4
Jun 31.7 27.7 25.3
Jul 32.9 28.5 25.9
Aug 32.4 28.1 25.7
Sep 32.6 28.1 25.4
Oct 32.6 26.9 23.3
Nov 30.1 23.1 18.9
Dec 26.8 19.8 15.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sylhet are December, November, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early July with an average of 6 days of significant precipitation the week of July 2nd.

When can you find snow in Sylhet? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Sylhet.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Sylhet (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 2% 0 0.3
Feb 7% 0 0.8
Mar 16% 0 3.4
Apr 47% 0 15.3
May 64% 0 24.4
Jun 72% 0 28.2
Jul 74% 0 21.3
Aug 73% 0 26
Sep 54% 0 18.9
Oct 14% 0 3.5
Nov 2% 0 0.6
Dec 0% 0 0

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 2 0 0.8
Feb 7 0 2
Mar 16 0 8.6
Apr 47 0 38.9
May 64 0 62
Jun 72 0 71.6
Jul 74 0 54.1
Aug 73 0 66
Sep 54 0 48
Oct 14 0 8.9
Nov 2 0 1.5
Dec 0 0 0


Humidity and Wind

Sylhet has some extremely humid months, with other comfortably humid months. The least humid month is March (53.1% relative humidity), and the most humid month is August (83.1%).

Wind in Sylhet is usually extremely calm. The windiest month is April, followed by March and May. April’s average wind speed of around 3.3 knots (3.8 MPH or 6.2 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid May where average top sustained speeds reach 8.7 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Sylhet.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 2.1 Barely noticeable 4.8 Light breeze
Feb 2.7 Barely noticeable 5.5 Light breeze
Mar 3.1 Barely noticeable 6.1 Light breeze
Apr 3.3 Barely noticeable 7.1 Gentle breeze
May 3 Barely noticeable 6.3 Light breeze
Jun 2.7 Barely noticeable 5.7 Light breeze
Jul 2.8 Barely noticeable 5.8 Light breeze
Aug 2.8 Barely noticeable 5.7 Light breeze
Sep 2.4 Barely noticeable 5.2 Light breeze
Oct 1.9 Barely noticeable 3.9 Barely noticeable
Nov 1.5 Barely noticeable 3.2 Light breeze
Dec 1.4 Barely noticeable 3.1 Barely noticeable

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 67.1%
Feb 56%
Mar 53.1%
Apr 67.2%
May 76%
Jun 82.1%
Jul 80%
Aug 83.1%
Sep 80.9%
Oct 73.2%
Nov 69%
Dec 69.1%


Is it Safe to Travel to Sylhet?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 there are travel warnings and regional advisories for Bangladesh; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 27, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Sylhet, Bangladesh is January, followed by July and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Sylhet in October. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 58.1 in October means 58.1% of the tourists vs. January.



Overall Sylhet Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 92.4°F (33.6°C) and 87.6°F (30.9°C) with warmer temperatures in the later months. Rain is frequent with 5 to 20 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 22 to 23 days of precipitation per month. June – August is the busiest season for tourism in Sylhet, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 92.5°F (33.6°C) and 83.7°F (28.7°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 0 to 16 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is perfect this time of year in Sylhet to be enjoyable for warm weather travelers. The average high during this season is between 87.6°F (30.9°C) and 77.1°F (25.1°C). On average, it rains or snows a smalll amount: 0 to 2 times per month. These times of year are the second busiest with tourists.


Best Times to TravelBangladesh › Sylhet, Bangladesh