Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
December verdict
Arugam Bay, Sri Lanka in December
Weather score55Good
Good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 311mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
29°C
Rain
311mm
Sun
5.7h
Sea
28°C
Weather score
55
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 311mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.7h 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 Arugam Bay, Sri Lanka with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December29°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsMarch to October
This stretch sets the upper range for average daytime heat.
Rain
December311mm average rain
December is one of Arugam Bay's wettest months, so rain is likely to be a major planning factor.
Driest monthsFebruary to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.7 hours average sun
December is one of Arugam Bay'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
December28°C average sea
December is below Arugam Bay's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaMarch to August and October to November
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
December55 weather score
December 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 September
These months have the strongest weather score in the monthly averages.
