Sylhet weather in April
In April, Sylhet sees average daytime highs of 29°C and overnight lows near 21°C, with 560 mm of rain across 21.4 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 38% of the time in April, and the air most often feels oppressive.
Daylight stretches from about 12 h 12 min at the start of April to 12 h 54 min by month's end. Set against the rest of the year, April is Sylhet's 7th-clearest and 3rd-windiest month. For the whole year in context, see Sylhet's year-round climate.
- Daytime high
- 29°
- 7th warmest
- Overnight low
- 21°
- 6th coldest
- Rainfall
- 560 mm
- 21.4 wet days
- Daylight
- 12 h 36 min
- 5:35 AM – 6:10 PM
- Cloud cover
- 52%
- 7th clearest
- Wind
- 5 km/h
- 3rd windiest
- Solar energy
- 4.91 kWh/m²
- Travel score
- 4.0
- out of 10
Sylhet is capital and largest city of Sylhet Division, Bangladesh.
- Air quality
- Severe
- PM2.5 59.8 µg/m³ · 2018
- Density
- 8,943/km²
- people per km²
- Founded
- 1867
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 29°C through the month.
A typical April day in Sylhet reaches about 29°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, April runs about 1°C warmer than March and on par with May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 20 |
| 2 | 29 | 20 |
| 3 | 29 | 20 |
| 4 | 29 | 20 |
| 5 | 29 | 20 |
| 6 | 29 | 20 |
| 7 | 29 | 20 |
| 8 | 29 | 20 |
| 9 | 29 | 20 |
| 10 | 29 | 21 |
| 11 | 29 | 21 |
| 12 | 29 | 21 |
| 13 | 29 | 21 |
| 14 | 29 | 21 |
| 15 | 29 | 21 |
| 16 | 29 | 21 |
| 17 | 29 | 21 |
| 18 | 30 | 21 |
| 19 | 30 | 21 |
| 20 | 29 | 21 |
| 21 | 29 | 21 |
| 22 | 29 | 21 |
| 23 | 30 | 21 |
| 24 | 30 | 21 |
| 25 | 30 | 21 |
| 26 | 30 | 22 |
| 27 | 30 | 22 |
| 28 | 30 | 22 |
| 29 | 30 | 22 |
| 30 | 30 | 22 |
How April really feels in Sylhet
Once humidity and wind are folded in, April averages 17 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sylhet weather by month
How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 11° | 10 | 1.8 | 10.6 | 9.0 |
| Feb | 26° / 14° | 48 | 4.6 | 11.1 | 8.2 |
| Mar | 29° / 18° | 187 | 11.2 | 11.8 | 6.1 |
| Apr | 29° / 21° | 560 | 21.4 | 12.6 | 4.0 |
| May | 30° / 23° | 759 | 27.6 | 13.2 | 3.1 |
| Jun | 30° / 25° | 953 | 29.5 | 13.5 | 2.5 |
| Jul | 31° / 25° | 941 | 30.8 | 13.4 | 2.3 |
| Aug | 31° / 26° | 733 | 30.7 | 12.9 | 2.3 |
| Sep | 31° / 25° | 523 | 27.6 | 12.2 | 2.6 |
| Oct | 30° / 23° | 217 | 14.8 | 11.4 | 4.7 |
| Nov | 28° / 17° | 28 | 2.3 | 10.8 | 7.8 |
| Dec | 25° / 13° | 12 | 1.1 | 10.5 | 9.1 |
Cloud cover in April
The sky is clear or mostly clear about 38% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 20% of April, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 67 | 66 | 65 | 65 | 65 | 64 | 64 | 64 | 63 | 63 | 62 | 62 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 54 | 54 | 52 | 52 | 51 | 51 | 51 | 51 | 50 | 51 | 51 |
| Cloudier (%) | 33 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 37 | 37 | 38 | 38 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 46 | 46 | 48 | 48 | 49 | 49 | 49 | 49 | 50 | 49 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 67 | 33 |
| 2 | 66 | 34 |
| 3 | 65 | 35 |
| 4 | 65 | 35 |
| 5 | 65 | 35 |
| 6 | 64 | 36 |
| 7 | 64 | 36 |
| 8 | 64 | 36 |
| 9 | 63 | 37 |
| 10 | 63 | 37 |
| 11 | 62 | 38 |
| 12 | 62 | 38 |
| 13 | 60 | 40 |
| 14 | 59 | 41 |
| 15 | 58 | 42 |
| 16 | 57 | 43 |
| 17 | 56 | 44 |
| 18 | 55 | 45 |
| 19 | 54 | 46 |
| 20 | 54 | 46 |
| 21 | 54 | 46 |
| 22 | 52 | 48 |
| 23 | 52 | 48 |
| 24 | 51 | 49 |
| 25 | 51 | 49 |
| 26 | 51 | 49 |
| 27 | 51 | 49 |
| 28 | 50 | 50 |
| 29 | 51 | 49 |
| 30 | 51 | 49 |
Chance of precipitation in April
Sylhet gets around 560 mm of rain over 21.4 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 71% and peaks near 80% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 63 | 64 | 65 | 65 | 66 | 66 | 67 | 67 | 68 | 68 | 69 | 69 | 70 | 71 | 71 | 71 | 72 | 72 | 73 | 73 | 74 | 75 | 75 | 76 | 77 | 77 | 78 | 78 | 79 | 80 |
| Rain chance (%) | |
|---|---|
| 1 | 63 |
| 2 | 64 |
| 3 | 65 |
| 4 | 65 |
| 5 | 66 |
| 6 | 66 |
| 7 | 67 |
| 8 | 67 |
| 9 | 68 |
| 10 | 68 |
| 11 | 69 |
| 12 | 69 |
| 13 | 70 |
| 14 | 71 |
| 15 | 71 |
| 16 | 71 |
| 17 | 72 |
| 18 | 72 |
| 19 | 73 |
| 20 | 73 |
| 21 | 74 |
| 22 | 75 |
| 23 | 75 |
| 24 | 76 |
| 25 | 77 |
| 26 | 77 |
| 27 | 78 |
| 28 | 78 |
| 29 | 79 |
| 30 | 80 |
Humidity in April
Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the oppressive band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 17 | 15 | 13 | 12 | 10 | 9 | 8 | 7 | 7 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 57 | 58 | 58 | 57 | 56 | 54 | 53 | 51 | 49 | 47 | 45 | 44 | 42 | 41 | 39 | 38 | 37 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 26 | 25 | 24 |
| Oppressive (%) | 22 | 24 | 26 | 28 | 30 | 33 | 35 | 38 | 40 | 43 | 45 | 48 | 50 | 52 | 54 | 56 | 57 | 56 | 57 | 59 | 60 | 61 | 61 | 62 | 63 | 63 | 64 | 65 | 65 | 65 |
| Miserable (%) | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 17 | 57 | 22 | 1 |
| 2 | 0 | 2 | 15 | 58 | 24 | 1 |
| 3 | 0 | 2 | 13 | 58 | 26 | 1 |
| 4 | 0 | 2 | 12 | 57 | 28 | 1 |
| 5 | 0 | 2 | 10 | 56 | 30 | 2 |
| 6 | 0 | 2 | 9 | 54 | 33 | 2 |
| 7 | 0 | 2 | 8 | 53 | 35 | 2 |
| 8 | 0 | 1 | 7 | 51 | 38 | 3 |
| 9 | 0 | 1 | 7 | 49 | 40 | 3 |
| 10 | 0 | 1 | 6 | 47 | 43 | 3 |
| 11 | 0 | 1 | 5 | 45 | 45 | 3 |
| 12 | 0 | 1 | 4 | 44 | 48 | 4 |
| 13 | 0 | 1 | 4 | 42 | 50 | 4 |
| 14 | 0 | 0 | 3 | 41 | 52 | 4 |
| 15 | 0 | 0 | 3 | 39 | 54 | 4 |
| 16 | 0 | 0 | 2 | 38 | 56 | 4 |
| 17 | 0 | 0 | 2 | 37 | 57 | 4 |
| 18 | 0 | 0 | 2 | 37 | 56 | 5 |
| 19 | 0 | 0 | 2 | 36 | 57 | 5 |
| 20 | 0 | 0 | 1 | 35 | 59 | 5 |
| 21 | 0 | 0 | 1 | 34 | 60 | 5 |
| 22 | 0 | 0 | 1 | 33 | 61 | 5 |
| 23 | 0 | 0 | 1 | 32 | 61 | 6 |
| 24 | 0 | 0 | 1 | 31 | 62 | 6 |
| 25 | 0 | 0 | 1 | 30 | 63 | 6 |
| 26 | 0 | 0 | 1 | 29 | 63 | 7 |
| 27 | 0 | 0 | 1 | 28 | 64 | 7 |
| 28 | 0 | 0 | 1 | 26 | 65 | 8 |
| 29 | 0 | 0 | 1 | 25 | 65 | 9 |
| 30 | 0 | 0 | 1 | 24 | 65 | 10 |
Wind in April
Winds average 5 km/h in April.
Across April, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 12 min at the start of April to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 42 minutes over April. Sunrise moves from 5:51 AM to 5:23 AM, and sunset from 6:04 PM to 6:17 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 |
| Sunrise (AM) | 5:51 | 5:50 | 5:49 | 5:47 | 5:46 | 5:45 | 5:44 | 5:43 | 5:42 | 5:41 | 5:40 | 5:39 | 5:38 | 5:37 | 5:36 | 5:35 | 5:34 | 5:33 | 5:32 | 5:31 | 5:31 | 5:30 | 5:29 | 5:28 | 5:27 | 5:26 | 5:25 | 5:25 | 5:24 | 5:23 |
| Sunset (PM) | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:07 | 6:07 | 6:08 | 6:08 | 6:08 | 6:09 | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 | 6:12 | 6:12 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 5:51 | 6:04 |
| 2 | 12.2 | 5:50 | 6:04 |
| 3 | 12.3 | 5:49 | 6:05 |
| 4 | 12.3 | 5:47 | 6:05 |
| 5 | 12.3 | 5:46 | 6:05 |
| 6 | 12.3 | 5:45 | 6:06 |
| 7 | 12.4 | 5:44 | 6:06 |
| 8 | 12.4 | 5:43 | 6:07 |
| 9 | 12.4 | 5:42 | 6:07 |
| 10 | 12.4 | 5:41 | 6:08 |
| 11 | 12.5 | 5:40 | 6:08 |
| 12 | 12.5 | 5:39 | 6:08 |
| 13 | 12.5 | 5:38 | 6:09 |
| 14 | 12.5 | 5:37 | 6:09 |
| 15 | 12.6 | 5:36 | 6:10 |
| 16 | 12.6 | 5:35 | 6:10 |
| 17 | 12.6 | 5:34 | 6:11 |
| 18 | 12.6 | 5:33 | 6:11 |
| 19 | 12.7 | 5:32 | 6:12 |
| 20 | 12.7 | 5:31 | 6:12 |
| 21 | 12.7 | 5:31 | 6:12 |
| 22 | 12.7 | 5:30 | 6:13 |
| 23 | 12.7 | 5:29 | 6:13 |
| 24 | 12.8 | 5:28 | 6:14 |
| 25 | 12.8 | 5:27 | 6:14 |
| 26 | 12.8 | 5:26 | 6:15 |
| 27 | 12.8 | 5:25 | 6:15 |
| 28 | 12.9 | 5:25 | 6:16 |
| 29 | 12.9 | 5:24 | 6:16 |
| 30 | 12.9 | 5:23 | 6:17 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.91 kWh/m².
For context, solar energy here swings from a low near 3.23 kWh/m² to a high of 5.31 kWh/m² in March across the year — April's 4.91 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.0 | Bright |
| 2 | 5.0 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.7 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
Hazard calendar for Sylhet
In April, Sylhet sits inside its monsoon season. The full year is below, with each hazard's peak months called out.
Sylhet's monsoon runs April–September, when most of the year's rain falls.
Is April a good time to visit Sylhet?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a reasonable time to visit Sylhet for sightseeing.
What to pack for Sylhet in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Sylhet sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.
UV index in Sylhet in April
Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sylhet peaks around July 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 17 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 5 | 8 | 7 | 8 | 6 | 12 | 10 | 11 | 6 | 6 | 5 |
| Level | Moderate | Moderate | Very high | High | Very high | High | Extreme | Extreme | Extreme | High | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | Moderate |
| Mar | 8 | Very high |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 6 | High |
| Jul | 12 | Extreme |
| Aug | 10 | Extreme |
| Sep | 11 | Extreme |
| Oct | 6 | High |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Sylhet in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Sylhet is worst in January — around 100 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (July, 23 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Sylhet's WHO annual average of 59.8 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 100 | 94 | 95 | 62 | 44 | 32 | 23 | 30 | 36 | 51 | 67 | 83 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Poor | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 100 | Unhealthy |
| Feb | 94 | Unhealthy |
| Mar | 95 | Unhealthy |
| Apr | 62 | Unhealthy |
| May | 44 | Poor |
| Jun | 32 | Moderate |
| Jul | 23 | Moderate |
| Aug | 30 | Moderate |
| Sep | 36 | Poor |
| Oct | 51 | Poor |
| Nov | 67 | Unhealthy |
| Dec | 83 | Unhealthy |
Where is Sylhet?
Sylhet sits at 24.9°N, 91.9°E, 26 m above sea level, in Bangladesh. The nearest listed city is Mymensingh, 149 km away.
Topography around Sylhet
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sylhet.
Within 3 km, the terrain around Sylhet has only modest variations in elevation — a maximum elevation change of 55 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 82 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,953 m.
The land around Sylhet is covered by trees (52%) and artificial surfaces (41%) within 3 km, cropland (53%) and trees (39%) within 16 km, and trees (46%) and cropland (40%) within 80 km.
Bangladesh travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / C / D / G
- 220 V · 50 Hz
- Prices
- ≈ 25% of US
- price level, 2025
- GDP per capita
- $2,597
- 2025
- Happiness
- 4.3 / 10
- World Happiness, 2025
- Safe drinking water
- 59%
- of population, 2024
- Homicide rate
- 2.3
- per 100k, 2018
- Road deaths
- 15.3
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 506
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sylhet (24.899°, 91.872°, elevation 26 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).