Average high
31.9°
Sirajganj weather in September
Late monsoon, early autumn · 2020–2024 averages
September in Sirajganj is late monsoon, early autumn: days average 31.9°C and nights 25.6°C, with about 302 mm of rain over 25 days and roughly 8.3 hours of sunshine a day. Around mid-month the sun rises at 5:47 AM and sets at 6:07 PM, a 12.3-hour day.
Average low
25.6°
Rainfall
302 mm
Rainy days
25
Sunshine / day
8.3 h
Days ≥ 35°C
1
Hottest day (2020–24)
36.2°
Coldest night (2020–24)
23.8°
Wettest single day
72 mm
Sunrise
5:47 AM
Sunset
6:07 PM
Day length
12.3 h
What to expect
- Warm days, with highs around 31.9°C.
- This is monsoon: about 302 mm of rain over 25 days, often as heavy afternoon or overnight downpours.
- Roughly 8.3 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, Sirajganj ranks 45th 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 10th, with highs 0.5° 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 similar rainfall. October then turns cooler and drier.
What is the weather like in Sirajganj in September?
September in Sirajganj is late monsoon, early autumn: days average 31.9°C and nights 25.6°C, with about 302 mm of rain over 25 days and roughly 8.3 hours of sunshine a day. Around mid-month the sun rises at 5:47 AM and sets at 6:07 PM, a 12.3-hour day.
Is September a good time to visit Sirajganj?
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 Sirajganj in September?
Yes — on about 25 days, around 302 mm in total; the wettest single day in 2020–24 brought 72 mm.
How hot is Sirajganj in September?
Average highs of 31.9°C and lows of 25.6°C; the hottest September day in 2020–24 reached 36.2°C, and about 1 day top 35°C.
Today's live forecast for Sirajganj →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 23.5° / 11.9° | 8 mm | 2 | 9.4 |
| February | 26.4° / 13.7° | 19 mm | 3 | 9.9 |
| March | 31.1° / 18.5° | 40 mm | 6 | 10.5 |
| April | 34.8° / 22.9° | 72 mm | 10 | 10.5 |
| May | 33.2° / 24.3° | 268 mm | 21 | 9.5 |
| June | 32.9° / 26.2° | 369 mm | 27 | 7.4 |
| July | 32.7° / 26.3° | 293 mm | 28 | 8.6 |
| August | 32.3° / 25.9° | 309 mm | 28 | 8.6 |
| September | 31.9° / 25.6° | 302 mm | 25 | 8.3 |
| October | 31.1° / 23.3° | 172 mm | 13 | 9.3 |
| November | 29.1° / 17.6° | 3 mm | 1 | 9.9 |
| December | 25.3° / 14.1° | 11 mm | 1 | 9.3 |
Sirajganj climate: the whole year · Bangladesh weather in September · Farming weather