What January feels like in Colombo
January is part of Colombo's dry season, when rain totals drop well below the wet months. Expect proper heat in the afternoon — slow down between noon and four. Little changes after sunset — nights stay warm, only slightly below the daytime level. Thick, humid air means clothes cling and the heat feels stronger than the number.
Rain in Colombo in January
Expect a mix of dry and wet days, with rain about one day in 3. Wet days average about 8.2 mm (0.3 in), enough to soak you without an umbrella. Across the year Colombo averages about 10 mm per rainy day, so January is typical. It is among the three driest months of the year.
Daylight and sunshine in January
In mid-January, sunrise is at about 6:26 am and sunset at about 6:12 pm (local time) — 11 h 46 min of daylight. Day length barely changes from mid-December (2 min longer). Close to the equator, sunrise and sunset times move very little through the year. Measured sunshine covers about 87% of the daylight — skies are mostly clear.
How January compares to the rest of the year
January is the 4th warmest month of the year in Colombo. Compared with December, afternoons are 0.9°C (1.6°F) warmer, with 99 mm less rain. The warm-up continues into February. The next month's average high: 31.3°C (88.3°F).
Who January suits
- Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Beach: less ideal — too many rainy days.
Tips for visiting Colombo in January
Rain Protection
A compact umbrella and a light waterproof jacket.
Sun Protection
Sunscreen, a hat and sunglasses; light breathable clothes.
Quick questions
How warm is Colombo in January?
Expect around 30.1°C (86.2°F) in the afternoon and 22.7°C (72.9°F) at night, which most visitors would call hot.
Does it rain a lot in Colombo in January?
It does: about 11 rainy days bring roughly 90 mm, so plan some indoor options.
What should I wear in Colombo in January?
The numbers point to rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.
Is January or February better for visiting Colombo?
On our 12-month climate ranking, February comes out ahead (#1 of 12 vs #2). February is warmer and has fewer rainy days.