Average high
31.4°
Chattogram weather in May
Pre-monsoon summer · 2020–2024 averages
May in Chattogram is pre-monsoon summer: days average 31.4°C and nights 25.5°C, with about 182 mm of rain over 18 days and roughly 10.2 hours of sunshine a day. Around mid-month the sun rises at 5:13 AM and sets at 6:25 PM, a 13.2-hour day.
Average low
25.5°
Rainfall
182 mm
Rainy days
18
Sunshine / day
10.2 h
Days ≥ 35°C
1
Hottest day (2020–24)
36.2°
Coldest night (2020–24)
21.5°
Wettest single day
87 mm
Sunrise
5:13 AM
Sunset
6:25 PM
Day length
13.2 h
What to expect
- Warm days, with highs around 31.4°C.
- Showers on around 18 days (about 182 mm), usually short and often with thunder.
- Roughly 10.2 hours of sunshine a day.
- Nor'westers (kalboishakhi) can bring sudden squalls, hail and lightning in the late afternoon.
- Cyclone season on the Bay of Bengal — watch BMD bulletins and signal numbers if a depression forms.
What to pack
- an umbrella or raincoat and quick-drying footwear
Compared with the rest of Bangladesh
In May, Chattogram ranks 60th of 64 districts for rainfall — roughly 74 mm drier than the national average; the wettest district this month is Sylhet (463 mm) and the driest Lakshmipur (177 mm). For heat it ranks 56th, with highs 1.2° below the national mean; Chapai Nawabganj is the hottest district in May (34.1°C) and Panchagarh has the coldest nights (22.5°C).
Compared with the months around it
May is about 0.7° cooler than April, with roughly 138 mm more rain. June then turns cooler and wetter.
What is the weather like in Chattogram in May?
May in Chattogram is pre-monsoon summer: days average 31.4°C and nights 25.5°C, with about 182 mm of rain over 18 days and roughly 10.2 hours of sunshine a day. Around mid-month the sun rises at 5:13 AM and sets at 6:25 PM, a 13.2-hour day.
Is May a good time to visit Chattogram?
Reasonable — expect rain on about 18 days, so carry an umbrella.
Does it rain in Chattogram in May?
Yes — on about 18 days, around 182 mm in total; the wettest single day in 2020–24 brought 87 mm.
How hot is Chattogram in May?
Average highs of 31.4°C and lows of 25.5°C; the hottest May day in 2020–24 reached 36.2°C, and about 1 day top 35°C.
Today's live forecast for Chattogram →
Month by month
| Months | High / Low | Rainfall | Rainy days | Sunshine / day |
|---|---|---|---|---|
| January | 24.4° / 14.8° | 16 mm | 2 | 9.6 |
| February | 26.5° / 16.1° | 4 mm | 1 | 9.9 |
| March | 30.7° / 20.8° | 17 mm | 4 | 10.2 |
| April | 32.1° / 24.9° | 44 mm | 7 | 10.9 |
| May | 31.4° / 25.5° | 182 mm | 18 | 10.2 |
| June | 29.8° / 25.8° | 400 mm | 26 | 7.7 |
| July | 29.9° / 25.9° | 366 mm | 28 | 7.7 |
| August | 29.5° / 25.5° | 527 mm | 29 | 6.6 |
| September | 30.1° / 25.6° | 332 mm | 26 | 8.4 |
| October | 30.4° / 24.6° | 155 mm | 15 | 9.5 |
| November | 28.8° / 20.6° | 37 mm | 2 | 10.2 |
| December | 25.8° / 16.7° | 23 mm | 2 | 9.4 |
Places to visit in Chattogram
Chattogram climate: the whole year · Bangladesh weather in May · Farming weather