SeasonMapSylhet weather by month
Bangladesh
The best time to visit Sylhet is December to February — 93/100 in January, 24°C and 2 rainy days. The best season is winter, December to February (90/100 on average).
The worst month is June at 34/100 — sweltering, soaked, muggy air. See June →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Bangladesh →
Sylhet, month by month
Comfort score out of 100 for the kind of trip Sylhet is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 93 | S | 24°C | 2 d | 10 h | Busy | 1 |
| FebFebruary | 87 | A | 26°C | 4 d | 10 h | Busy | 1 |
| MarMarch | 72 | B | 29°C | 11 d | 10 h | Busy | 2 |
| AprApril | 51 | D | 30°C | 21 d | 9 h | Shoulder | — |
| MayMay | 46 | F | 30°C | 26 d | 8 h | Shoulder | 1 |
| JunJune | 34 | F | 30°C | 29 d | 6 h | Quiet | 2 |
| JulJuly | 36 | F | 31°C | 31 d | 6 h | Peak | 2 |
| AugAugust | 39 | F | 31°C | 30 d | 6 h | Quiet | 2 |
| SepSeptember | 41 | F | 31°C | 26 d | 7 h | Shoulder | 2 |
| OctOctober | 57 | D | 30°C | 16 d | 9 h | Shoulder | 1 |
| NovNovember | 80 | A | 28°C | 3 d | 9 h | Shoulder | 1 |
| DecDecember | 90 | S | 25°C | 2 d | 9 h | Busy | 1 |
What's on in Sylhet through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Sylhet in January
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 6 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet