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.
Sylhet Travel Guide
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)
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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
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.
Snow on the Ground
The graph below shows the average snow on the ground in Sylhet (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
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.
The graph below shows wind speed (max and average) in knots.
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|
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
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.