Average high
31.7°
Cumilla weather in September
Late monsoon, early autumn · 2020–2024 averages
September in Cumilla is late monsoon, early autumn: days average 31.7°C and nights 25.4°C, with about 280 mm of rain over 26 days and roughly 8.9 hours of sunshine a day. Around mid-month the sun rises at 5:42 AM and sets at 6:01 PM, a 12.3-hour day.
Average low
25.4°
Rainfall
280 mm
Rainy days
26
Sunshine / day
8.9 h
Hottest day (2020–24)
35.4°
Coldest night (2020–24)
23.6°
Wettest single day
58 mm
Sunrise
5:42 AM
Sunset
6:01 PM
Day length
12.3 h
What to expect
- Warm days, with highs around 31.7°C.
- This is monsoon: about 280 mm of rain over 26 days, often as heavy afternoon or overnight downpours.
- Roughly 8.9 hours of sunshine a day.
What to pack
- an umbrella or raincoat and quick-drying footwear
- waterproof covers for phones and documents
Compared with the rest of Bangladesh
In September, Cumilla ranks 59th of 64 districts for rainfall — roughly 44 mm drier than the national average; the wettest district this month is Panchagarh (435 mm) and the driest Kishoreganj (261 mm). For heat it ranks 21st, with highs 0.3° above the national mean; Kishoreganj is the hottest district in September (32.4°C) and Bandarban has the coldest nights (23.5°C).
Compared with the months around it
September is about as warm as August, with roughly 92 mm less rain. October then turns cooler and drier.
What is the weather like in Cumilla in September?
September in Cumilla is late monsoon, early autumn: days average 31.7°C and nights 25.4°C, with about 280 mm of rain over 26 days and roughly 8.9 hours of sunshine a day. Around mid-month the sun rises at 5:42 AM and sets at 6:01 PM, a 12.3-hour day.
Is September a good time to visit Cumilla?
It is peak monsoon, with about 280 mm of rain. Good for haors, waterfalls and green landscapes; poor for beaches and hill trekking.
Does it rain in Cumilla in September?
Yes — on about 26 days, around 280 mm in total; the wettest single day in 2020–24 brought 58 mm.
How hot is Cumilla in September?
Average highs of 31.7°C and lows of 25.4°C; the hottest September day in 2020–24 reached 35.4°C.
Today's live forecast for Cumilla →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 24.5° / 12.6° | 9 mm | 2 | 9.4 |
| February | 27.5° / 14.5° | 10 mm | 2 | 9.8 |
| March | 32.3° / 19.4° | 42 mm | 5 | 10.2 |
| April | 35° / 23.7° | 110 mm | 11 | 10.5 |
| May | 33.5° / 24.9° | 218 mm | 19 | 9.9 |
| June | 31.9° / 25.9° | 333 mm | 28 | 7.8 |
| July | 31.9° / 25.9° | 244 mm | 28 | 8.8 |
| August | 31.4° / 25.6° | 372 mm | 28 | 7.8 |
| September | 31.7° / 25.4° | 280 mm | 26 | 8.9 |
| October | 30.9° / 23.7° | 211 mm | 17 | 9.3 |
| November | 28.8° / 18.3° | 23 mm | 2 | 10 |
| December | 25.6° / 14.4° | 33 mm | 2 | 9.4 |
Places to visit in Cumilla
Cumilla climate: the whole year · Bangladesh weather in September · Farming weather