Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Sri Lanka Average Monthly Weather
Weather score66Good annual avg
Best months: February, March, January
Across the year, average daytime temperatures are around 30°C, sunshine averages 6.6h per day, and rainfall totals about 1703mm. Sea temperatures average 24°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
1703mm
Annual total
Sun
6.6h
Sea
24°C
Weather score
66
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 76mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.8h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Sri Lanka with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July31°C average high
July sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to September
This stretch sets the upper range for average daytime heat.
Rain
July76mm average rain
July is one of Sri Lanka's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to March and May to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July5.8 hours average sun
July is one of Sri Lanka's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July24°C average sea
July is close to Sri Lanka's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaMarch to June and October to November
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
July68 weather score
July sits close to Sri Lanka's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to March and June to August
These months have the strongest weather score in the monthly averages.
