Off season. December is one of the quieter, less reliable months in Sri Lanka. In December, Sri Lanka averages 24°C, with about 8 hours of sunshine a day and roughly 5.8 rainy days a week. Here's what those numbers mean for a trip.
That's about 1.8°C cooler than Sri Lanka's yearly average — expect milder conditions than peak summer.
Pack warm layers and proper rain gear; this is not reliable beach weather.
December is one of the quieter, less reliable months in Sri Lanka. It averages 24°C with 8 hours of sun a day and about 5.8 rainy days a week.
Sri Lanka averages 24°C in December, based on roughly twenty years of climate records.
Expect about 5.8 rainy days a week in December, with 8 hours of sunshine a day on average.