Sylhet weather by month & the best time to visit
🇧🇩 Bangladesh · regional city · humid subtropical climate
The best time to visit Sylhet is January — its sunniest month (Sunshine Score 90/100), with November and December close behind. Sylhet averages about 2,257 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 11 mm of rain in January.
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- Sun hours / year
- 2,257
- Sunniest month
- January
- Peak score
- 90/100
- Rain / year
- 3,707 mm
- Midday UV at peak
- 8 (very high)
- Population
- 237k
- Elevation
- 12 m

When is the best time to visit Sylhet?
For sunshine, the best time to visit Sylhet is January, then November and December. The dullest month is April (65/100, 377 mm of rain). The full month-by-month picture is in the table below.
How sunny is Sylhet?
Sylhet gets a moderate 2,257 hours of sunshine a year. January (90/100) is noticeably better than April (65). It ranks #3 of 8 destinations in Bangladesh for annual sunshine, above the national median of 2,212 hours. Rain has a clear season: the wettest stretch, around July, carries about 52% of the annual 3,707 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 90 | 23° / 73°F | 12° / 54°F | 11 mm | 5 |
| February | 86 | 26° / 79°F | 14° / 57°F | 34 mm | 6 |
| March | 74 | 31° / 88°F | 19° / 66°F | 98 mm | 7 |
| April | 65 | 32° / 90°F | 23° / 73°F | 377 mm | 8 |
| May | 65 | 32° / 90°F | 25° / 77°F | 540 mm | 7 |
| June | 65 | 31° / 88°F | 26° / 79°F | 701 mm | 7 |
| July | 65 | 31° / 88°F | 26° / 79°F | 693 mm | 8 |
| August | 65 | 31° / 88°F | 26° / 79°F | 545 mm | 8 |
| September | 65 | 31° / 88°F | 25° / 77°F | 432 mm | 8 |
| October | 65 | 30° / 86°F | 23° / 73°F | 231 mm | 7 |
| November | 88 | 27° / 81°F | 18° / 64°F | 24 mm | 6 |
| December | 88 | 24° / 75°F | 14° / 57°F | 21 mm | 5 |
See Sylhet on the interactive sunshine globe →
Nearby places for sunshine
- Guwahati India · 130 km · best in Jan · 2,129 h sun/yr
- Dhaka Bangladesh · 194 km · best in Jan · 2,130 h sun/yr
- Imphal India · 206 km · best in Jan · 2,260 h sun/yr
- Chattogram (Chittagong) Bangladesh · 302 km · best in Jan · 2,518 h sun/yr
- Saidpur Bangladesh · 310 km · best in Jan · 2,219 h sun/yr
- Paro Bhutan · 365 km · best in Oct · 2,071 h sun/yr
Nearest destinations
- Shillong India · 83 km · 2,017 h sun/yr · best in Dec
- Silchar India · 112 km · 2,280 h sun/yr · best in Jan
- Agartala India · 135 km · 2,352 h sun/yr · best in Jan
- Aizawl (Lengpui) India · 146 km · 2,357 h sun/yr · best in Jan
Head-to-head
How Sylhet compares month by month: Sylhet vs Dhaka · Sylhet vs Chattogram (Chittagong) · Sylhet vs Guwahati · Sylhet vs Imphal · all comparisons
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