Best and Worst Months to Visit Sylhet: Weather and Seasonal Guide

Quick Weather Answer: Best and Worst Time to Visit Sylhet

The best time to visit Sylhet for weather is usually January, when average daytime temperatures are around 74F (23C) and nights are near 54F (12C). The worst time to visit Sylhet is usually June, because the weather is less comfortable for long walks, outdoor sightseeing, and casual transit-heavy days.

• Best month for weather: January
• Worst month for weather: June
• Most comfortable season: Winter
• Hottest month: April, with average highs near 90F (32C)
• Coldest month: January, with average lows near 54F (12C)
• Rainiest month: June, with about 26.7 inches of rain
• Driest month: January, with about 0.4 inches of precipitation
• Most unpredictable weather period: the summer rainy period
• Best weather for a first-time trip: January, February, and November

What Is the Weather Like in Sylhet?

Sylhet has a relatively mild maritime climate, so extreme temperatures are less common than gray skies, wind, rain, and quick day-to-day changes. The Sylhet climate by month shows average highs from about 74F (23C) in the coolest part of the year to about 90F (32C) in the hottest part. Annual precipitation averages roughly 136.8 inches.

Weather in Sylhet changes the feel of the city because this is a place where comfort depends on more than the number on a forecast. A mild month can make metro transfers, neighborhood walks, outdoor meals, and photography feel easy. A difficult month can make the same itinerary feel slower, sweatier, colder, wetter, or more dependent on indoor breaks.

Best Month to Visit Sylhet for Weather

January is the best month to visit Sylhet for weather in a typical year. Average daytime highs are near 74F (23C), while nights are around 54F (12C). Precipitation averages 0.4 inches, so the month is usually more comfortable than the wetter, hotter, or colder parts of the year.

What makes January stand out is balance. It is not necessarily perfect every day, but it usually gives travelers the best combination of outdoor comfort, manageable weather risk, and enough flexibility for a first-time trip. If hotel prices or crowds rise during this period, that popularity is at least partly weather-driven.

Worst Month to Visit Sylhet for Weather

June is the worst month to visit Sylhet from a pure weather perspective. Average highs are around 88F (31C), and nights are near 78F (25C). The month also brings heavy rain, averaging about 26.7 inches, which can make long outdoor days less comfortable.

Rain is the main problem. The month is not impossible, but showers and damp conditions can interrupt outdoor plans and make transit transfers less pleasant. Lower hotel prices or fewer visitors can make June acceptable for flexible travelers, but it is not the month I would choose for the best weather in Sylhet.

Sylhet Weather by Season

Spring Weather in Sylhet

In Sylhet, spring usually means March, April, and May. Daytime highs typically run from 87F (31C) to 90F (32C), with nights from about 65F (18C) to 76F (24C). Across the season, precipitation averages around 36.4 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best spring month for weather is usually March, while May is the least comfortable part of the season.

Summer Weather in Sylhet

In Sylhet, summer usually means June, July, and August. Daytime highs typically run from 88F (31C) to 88F (31C), with nights from about 78F (25C) to 78F (25C). Across the season, precipitation averages around 73.2 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best summer month for weather is usually August, while June is the least comfortable part of the season.

Fall Weather in Sylhet

In Sylhet, fall usually means September, October, and November. Daytime highs typically run from 81F (27C) to 87F (31C), with nights from about 64F (18C) to 77F (25C). Across the season, precipitation averages around 24.9 inches. Rain and humidity shape the season, so outdoor plans need more flexibility than the temperature alone suggests. The best fall month for weather is usually November, while September is the least comfortable part of the season.

Winter Weather in Sylhet

In Sylhet, winter usually means December, January, and February. Daytime highs typically run from 74F (23C) to 79F (26C), with nights from about 54F (12C) to 57F (14C). Across the season, precipitation averages around 2.2 inches. This is one of the more comfortable stretches of the year for walking, transit transfers, outdoor meals, and photography. The best winter month for weather is usually December, while December is the least comfortable part of the season.

Sylhet Weather by Month: What to Expect

January in Sylhet

January in Sylhet typically brings daytime highs around 74F (23C) and nighttime lows near 54F (12C). Expect dry weather, with only about 0.4 inches of rain, and average winds near 3 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is the best of the year for most travelers. Pack comfortable layers, a light jacket. Verdict: January is one of the best weather months in Sylhet.

February in Sylhet

February in Sylhet typically brings daytime highs around 79F (26C) and nighttime lows near 57F (14C). Expect some rain, averaging about 1.1 inches, and average winds near 3 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is very comfortable for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: February is a good month for weather in Sylhet.

March in Sylhet

March in Sylhet typically brings daytime highs around 87F (31C) and nighttime lows near 65F (18C). Expect moderate rain, averaging about 4.0 inches, and average winds near 3 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is very comfortable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: March is a good month for weather in Sylhet.

April in Sylhet

April in Sylhet typically brings daytime highs around 90F (32C) and nighttime lows near 72F (22C). Expect heavy rain, averaging about 12.8 inches, and average winds near 3 mph. In real life, the heat can feel sticky and draining, especially when clouds build and the air does not cool much after sunset.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: April is possible, but it is not one of the easier weather months in Sylhet.

May in Sylhet

May in Sylhet typically brings daytime highs around 89F (32C) and nighttime lows near 76F (24C). Expect heavy rain, averaging about 19.7 inches, and average winds near 3 mph. In real life, the heat can feel sticky and draining, especially when clouds build and the air does not cool much after sunset.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: May is possible, but it is not one of the easier weather months in Sylhet.

June in Sylhet

June in Sylhet typically brings daytime highs around 88F (31C) and nighttime lows near 78F (25C). Expect heavy rain, averaging about 26.7 inches, and average winds near 4 mph. In real life, the heat can feel sticky and draining, especially when clouds build and the air does not cool much after sunset.

Outdoor comfort is one of the least comfortable periods of the year for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: June is the weakest weather month in Sylhet, even if prepared travelers can still make it work.

July in Sylhet

July in Sylhet typically brings daytime highs around 88F (31C) and nighttime lows near 78F (25C). Expect heavy rain, averaging about 24.9 inches, and average winds near 4 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: July is possible, but it is not one of the easier weather months in Sylhet.

August in Sylhet

August in Sylhet typically brings daytime highs around 88F (31C) and nighttime lows near 78F (25C). Expect heavy rain, averaging about 21.6 inches, and average winds near 4 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: August is possible, but it is not one of the easier weather months in Sylhet.

September in Sylhet

September in Sylhet typically brings daytime highs around 87F (31C) and nighttime lows near 77F (25C). Expect heavy rain, averaging about 15.3 inches, and average winds near 3 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: September is possible, but it is not one of the easier weather months in Sylhet.

October in Sylhet

October in Sylhet typically brings daytime highs around 86F (30C) and nighttime lows near 72F (22C). Expect heavy rain, averaging about 8.8 inches, and average winds near 3 mph. In real life, this is warm to hot city weather; it can still work, but midday walking needs shade, water, and a flexible pace.

Outdoor comfort is rainy and less reliable for most travelers. Pack light clothing, sunglasses, a light layer for evenings, a compact umbrella or rain shell. Verdict: October is possible, but it is not one of the easier weather months in Sylhet.

November in Sylhet

November in Sylhet typically brings daytime highs around 81F (27C) and nighttime lows near 64F (18C). Expect dry weather, with only about 0.8 inches of rain, and average winds near 3 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is very comfortable for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: November is a good month for weather in Sylhet.

December in Sylhet

December in Sylhet typically brings daytime highs around 76F (24C) and nighttime lows near 57F (14C). Expect dry weather, with only about 0.7 inches of rain, and average winds near 3 mph. In real life, this is one of the easier kinds of city weather, with comfortable walking conditions and only limited weather friction.

Outdoor comfort is very comfortable for most travelers. Pack light clothing, sunglasses, a light layer for evenings. Verdict: December is a good month for weather in Sylhet.

Month-by-Month Weather Table for Sylhet

Hottest Time of Year in Sylhet

The hottest time of year in Sylhet is usually April, May, June, July, and August. The hottest month in Sylhet is April, with average highs near 90F (32C) and nights around 72F (22C). If humidity or strong sun is present, the heat can feel more demanding than the average high suggests.

Early mornings and evenings are usually better than midafternoon during this period. If the hot months overlap with summer vacation or peak travel, the city may still be busy, but from a weather perspective this is not automatically the most comfortable time to visit.

Coldest Time of Year in Sylhet

The coldest time of year in Sylhet is usually January. The coldest month in Sylhet is January, with average lows near 54F (12C) and daytime highs around 74F (23C). Snow is not the main issue, but cool mornings, wind, rain, or shorter daylight can still affect comfort.

Rainiest, Snowiest, or Most Humid Months in Sylhet

The rainiest month is usually June, with about 26.7 inches of rain. This is the month when showers, humidity, storms, or wet pavement are most likely to shape the trip. It can still be possible, but it is less reliable for outdoor-heavy plans.

Driest and Clearest Months in Sylhet

The driest month in Sylhet is usually January, with about 0.4 inches of precipitation. The broader dry-weather window often includes January, November, and December. These months are generally better for walking, photos, outdoor meals, and day trips because the odds of weather interruptions are lower.

Most Unpredictable Weather Period in Sylhet

The most unpredictable weather period in Sylhet is usually the summer rainy period. During this stretch, travelers should expect the forecast to matter more than the calendar. Pack flexible layers, check conditions before long walks, and avoid building a trip around only one kind of weather.

Best Weather for First-Time Visitors

For a first-time trip, the best weather window is usually January, February, and November. This period gives the strongest balance of mild temperatures, manageable rain, outdoor comfort, and enough daylight for a relaxed city schedule. It is also the period most likely to answer the question of when is the weather best in Sylhet without asking travelers to tolerate the year’s worst heat, cold, or wet weather.

When to Avoid Sylhet Because of Weather

Consider avoiding April, May, June, July, August if your trip depends on comfortable walking weather. These months are more likely to be too hot, too cold, too wet, too snowy, or simply less pleasant than the better parts of the year.

Families with kids, older travelers, photographers, and visitors who want to walk a lot should be especially careful with the worst weather months. Travelers who dislike heat should avoid the hottest stretch around April, May, June, July, and August; travelers who dislike cold should avoid the coldest stretch around January; travelers who dislike rain should be cautious around June.

Final Weather Verdict: When Should You Visit Sylhet?

The best month to visit Sylhet for weather is January. The worst month to visit Sylhet is June. The best season overall is usually Winter, while the best mild-weather period for a first-time visitor is January, February, and November.

If you want the best month to visit Sylhet, choose the month that gives you comfortable daytime temperatures and the lowest risk of weather disrupting outdoor plans. If you are comparing Sylhet weather by month, do not look only at the hottest month in Sylhet or the coldest month in Sylhet. Rain, snow, wind, humidity, and daylight can matter just as much.

For most travelers, the practical answer is simple: visit during the comfortable middle of the Sylhet seasons, avoid the most extreme month if you can, and pack for the specific weather pattern of your chosen dates.