Hot
Average highs reach 32°C, so days can feel very hot.
September verdict
Jaffna, Sri Lanka in September
Weather score72Very good
Very good for holiday weather
Average highs reach 32°C, so days can feel very hot. Sunshine averages 6.4h per day, enough for a balanced month. Rainfall averages 49mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
32°C
Rain
49mm
Sun
6.4h
Sea
29°C
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 49mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.4h 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 Jaffna, Sri Lanka with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September32°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsApril to September
This stretch sets the upper range for average daytime heat.
Rain
September49mm average rain
September sits on the drier side of Jaffna'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
September6.4 hours average sun
September is below Jaffna's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsFebruary to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September29°C average sea
September is close to Jaffna's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaApril to June
Sea temperatures are usually near 31°C in this stretch, so swimming comfort is at its strongest.
Weather score
September72 weather score
September sits close to Jaffna's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.