Average high
31.2°
Sylhet weather in April
Pre-monsoon summer · 2020–2024 averages
April in Sylhet is pre-monsoon summer: days average 31.2°C and nights 20.9°C, with about 266 mm of rain over 17 days and roughly 9.1 hours of sunshine a day. Around mid-month the sun rises at 5:30 AM and sets at 6:13 PM, a 12.7-hour day.
Average low
20.9°
Rainfall
266 mm
Rainy days
17
Sunshine / day
9.1 h
Days ≥ 35°C
1
Hottest day (2020–24)
36°
Coldest night (2020–24)
17.2°
Wettest single day
68 mm
Sunrise
5:30 AM
Sunset
6:13 PM
Day length
12.7 h
What to expect
- Warm days, with highs around 31.2°C.
- As wet as the monsoon: about 266 mm of rain over 17 days, often as heavy afternoon or overnight downpours.
- Roughly 9.1 hours of sunshine a day.
- Nor'westers (kalboishakhi) can bring sudden squalls, hail and lightning in the late afternoon.
- Flash floods from upstream hills can hit the haor basin in April and May, ahead of the Boro harvest.
What to pack
- an umbrella or raincoat and quick-drying footwear
- waterproof covers for phones and documents
Compared with the rest of Bangladesh
In April, Sylhet ranks 1st of 64 districts for rainfall — roughly 183 mm wetter than the national average; the wettest district this month is Sylhet (266 mm) and the driest Cox's Bazar (18 mm). For heat it ranks 63rd, with highs 3° below the national mean; Rajshahi is the hottest district in April (36.3°C) and Panchagarh has the coldest nights (20.8°C).
Compared with the months around it
April is about 1.1° warmer than March, with roughly 155 mm more rain. May then turns similar and wetter.
What is the weather like in Sylhet in April?
April in Sylhet is pre-monsoon summer: days average 31.2°C and nights 20.9°C, with about 266 mm of rain over 17 days and roughly 9.1 hours of sunshine a day. Around mid-month the sun rises at 5:30 AM and sets at 6:13 PM, a 12.7-hour day.
Is April a good time to visit Sylhet?
It is peak monsoon, with about 266 mm of rain. Good for haors, waterfalls and green landscapes; poor for beaches and hill trekking.
Does it rain in Sylhet in April?
Yes — on about 17 days, around 266 mm in total; the wettest single day in 2020–24 brought 68 mm.
How hot is Sylhet in April?
Average highs of 31.2°C and lows of 20.9°C; the hottest April day in 2020–24 reached 36°C, and about 1 day top 35°C.
Today's live forecast for Sylhet →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 23.7° / 12° | 19 mm | 3 | 9.2 |
| February | 26.3° / 13.6° | 34 mm | 4 | 9.2 |
| March | 30.1° / 17.6° | 111 mm | 9 | 8.7 |
| April | 31.2° / 20.9° | 266 mm | 17 | 9.1 |
| May | 31.1° / 23.1° | 463 mm | 22 | 9 |
| June | 30.6° / 24.5° | 854 mm | 29 | 6.7 |
| July | 31.7° / 25.4° | 606 mm | 31 | 7.7 |
| August | 31.4° / 25.3° | 611 mm | 29 | 7.5 |
| September | 32.1° / 25.2° | 336 mm | 23 | 9.2 |
| October | 30.8° / 23.2° | 300 mm | 16 | 9.1 |
| November | 29.2° / 17.7° | 19 mm | 3 | 10.3 |
| December | 25.5° / 14° | 27 mm | 3 | 9.3 |
Places to visit in Sylhet
Sylhet climate: the whole year · Bangladesh weather in April · Farming weather