Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Weather Guide
Kosgoda, Sri Lanka Average Monthly Weather
Weather score63Good annual avg
Best months: January, February, March
Across the year, average daytime temperatures are around 30°C, sunshine averages 6.7h per day, and rainfall totals about 2668mm. Sea temperatures average 28°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
2668mm
Annual total
Sun
6.7h
Sea
28°C
Weather score
63
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 181mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.1h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Kosgoda, Sri Lanka with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August29°C average high
August is close to Kosgoda's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
August181mm average rain
August sits near Kosgoda's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to March, August, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6.1 hours average sun
August is one of Kosgoda's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to March
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August28°C average sea
August is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaMarch to May
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
August63 weather score
August sits close to Kosgoda'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.
