Average high
32.3°
Brahmanbaria weather in September
Late monsoon, early autumn · 2020–2024 averages
September in Brahmanbaria is late monsoon, early autumn: days average 32.3°C and nights 25.6°C, with about 302 mm of rain over 26 days and roughly 8.8 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
25.6°
Rainfall
302 mm
Rainy days
26
Sunshine / day
8.8 h
Days ≥ 35°C
2
Hottest day (2020–24)
36.4°
Coldest night (2020–24)
23.7°
Wettest single day
51 mm
Sunrise
5:42 AM
Sunset
6:01 PM
Day length
12.3 h
What to expect
- Warm days, with highs around 32.3°C.
- This is monsoon: about 302 mm of rain over 26 days, often as heavy afternoon or overnight downpours.
- Roughly 8.8 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, Brahmanbaria ranks 43rd of 64 districts for rainfall — roughly 22 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 2nd, with highs 0.9° 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 21 mm less rain. October then turns cooler and drier.
What is the weather like in Brahmanbaria in September?
September in Brahmanbaria is late monsoon, early autumn: days average 32.3°C and nights 25.6°C, with about 302 mm of rain over 26 days and roughly 8.8 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 Brahmanbaria?
It is peak monsoon, with about 302 mm of rain. Good for haors, waterfalls and green landscapes; poor for beaches and hill trekking.
Does it rain in Brahmanbaria in September?
Yes — on about 26 days, around 302 mm in total; the wettest single day in 2020–24 brought 51 mm.
How hot is Brahmanbaria in September?
Average highs of 32.3°C and lows of 25.6°C; the hottest September day in 2020–24 reached 36.4°C, and about 2 days top 35°C.
Today's live forecast for Brahmanbaria →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 23.8° / 12.9° | 8 mm | 1 | 9.2 |
| February | 26.6° / 14.5° | 8 mm | 2 | 9.6 |
| March | 31.4° / 18.9° | 57 mm | 7 | 10.1 |
| April | 34.1° / 23.2° | 111 mm | 11 | 10.3 |
| May | 33° / 24.6° | 256 mm | 20 | 9.7 |
| June | 32° / 25.8° | 341 mm | 29 | 7.5 |
| July | 32.3° / 26° | 258 mm | 28 | 8.5 |
| August | 31.9° / 25.7° | 323 mm | 28 | 8.2 |
| September | 32.3° / 25.6° | 302 mm | 26 | 8.8 |
| October | 31.2° / 23.9° | 217 mm | 16 | 9.2 |
| November | 29° / 18.9° | 29 mm | 2 | 10 |
| December | 25.4° / 15° | 56 mm | 2 | 9.2 |
Brahmanbaria climate: the whole year · Bangladesh weather in September · Farming weather