Average high
31.2°
Lalmonirhat weather in September
Late monsoon, early autumn · 2020–2024 averages
September in Lalmonirhat is late monsoon, early autumn: days average 31.2°C and nights 25.2°C, with about 377 mm of rain over 24 days and roughly 7.8 hours of sunshine a day. Around mid-month the sun rises at 5:48 AM and sets at 6:09 PM, a 12.3-hour day.
Average low
25.2°
Rainfall
377 mm
Rainy days
24
Sunshine / day
7.8 h
Days ≥ 35°C
1
Hottest day (2020–24)
36.6°
Coldest night (2020–24)
23.4°
Wettest single day
69 mm
Sunrise
5:48 AM
Sunset
6:09 PM
Day length
12.3 h
What to expect
- Warm days, with highs around 31.2°C.
- This is monsoon: about 377 mm of rain over 24 days, often as heavy afternoon or overnight downpours.
- Roughly 7.8 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, Lalmonirhat ranks 5th of 64 districts for rainfall — roughly 53 mm wetter than the national average; the wettest district this month is Panchagarh (435 mm) and the driest Kishoreganj (261 mm). For heat it ranks 46th, with highs about the same as 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 0.5° cooler than August, with roughly 23 mm less rain. October then turns cooler and drier.
What is the weather like in Lalmonirhat in September?
September in Lalmonirhat is late monsoon, early autumn: days average 31.2°C and nights 25.2°C, with about 377 mm of rain over 24 days and roughly 7.8 hours of sunshine a day. Around mid-month the sun rises at 5:48 AM and sets at 6:09 PM, a 12.3-hour day.
Is September a good time to visit Lalmonirhat?
It is peak monsoon, with about 377 mm of rain. Good for haors, waterfalls and green landscapes; poor for beaches and hill trekking.
Does it rain in Lalmonirhat in September?
Yes — on about 24 days, around 377 mm in total; the wettest single day in 2020–24 brought 69 mm.
How hot is Lalmonirhat in September?
Average highs of 31.2°C and lows of 25.2°C; the hottest September day in 2020–24 reached 36.6°C, and about 1 day top 35°C.
Today's live forecast for Lalmonirhat →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 22.3° / 11.2° | 4 mm | 2 | 9.1 |
| February | 24.9° / 13° | 17 mm | 2 | 9.8 |
| March | 29.9° / 17.7° | 31 mm | 5 | 10.3 |
| April | 32° / 20.9° | 120 mm | 10 | 10.3 |
| May | 31° / 22.8° | 408 mm | 21 | 9.2 |
| June | 30.7° / 24.6° | 865 mm | 28 | 6.5 |
| July | 31.8° / 25.7° | 556 mm | 29 | 7 |
| August | 31.7° / 25.6° | 400 mm | 28 | 7.8 |
| September | 31.2° / 25.2° | 377 mm | 24 | 7.8 |
| October | 30° / 22.4° | 281 mm | 15 | 9 |
| November | 28° / 17.1° | 4 mm | 1 | 10 |
| December | 24.6° / 13.5° | 4 mm | 1 | 9.4 |
Lalmonirhat climate: the whole year · Bangladesh weather in September · Farming weather