Hot
Average highs reach 34°C, so days can feel very hot.
September verdict
Nilaveli, Sri Lanka in September
Weather score66Good
Good for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 6.8h per day, enough for a balanced month. Rainfall averages 96mm, so some wet days are possible.
September weather
Monthly averages
Temp
34°C
Rain
96mm
Sun
6.8h
Sea
29°C
Weather score
66
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 96mm, so some wet days are possible.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Nilaveli, Sri Lanka with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September34°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September96mm average rain
September sits on the drier side of Nilaveli's year, which helps with sightseeing and transfers.
Driest monthsJanuary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.8 hours average sun
September sits close to Nilaveli's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMarch to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September29°C average sea
September is close to Nilaveli's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaApril to July and October
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
September66 weather score
September sits close to Nilaveli's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to April
These months have the strongest weather score in the monthly averages.
