Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
September verdict
Bangladesh in September
Weather score42Mixed
Mixed for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 3.7h per day, so this is not one of the brighter months. Rainfall averages 315mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
31°C
Rain
315mm
Sun
3.7h
Sea
17°C
Weather score
42
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 315mm, so showers are a real planning factor.
Limited sun
Sunshine averages 3.7h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Bangladesh with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September31°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to May and September to October
This stretch sets the upper range for average daytime heat.
Rain
September315mm average rain
September sits near Bangladesh's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September3.7 hours average sun
September is below Bangladesh's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to April and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September17°C average sea
September is one of Bangladesh's warmest sea months, when swimming comfort is usually strongest.
Warmest seaApril to November
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
Weather score
September42 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.
