Climate in Colombo

Colombo, Sri Lanka has a tropical climate. The annual average temperature is about 26.7°C and the city receives roughly 2000 mm of precipitation across 182 rainy days a year, with around 819 hours of sunshine. The warmest month is Jul (highs near 31.5°C) and the coldest is Jan (lows near 21.9°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Colombo is classified as Tropical. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Colombo receives about 2000 mm of precipitation a year over roughly 182 rainy days. The wettest month is Oct and the driest is Feb.

Colombo sees an estimated 819 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Colombo are Feb, Jan, Mar. Conditions vary year to year — verify with a current forecast before booking.

Colombo has a climate comfort score of 52/100, a moderate year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Mumbai — Tropical, comfort 75/100
• Climate in Bangalore — Tropical, comfort 70/100
• Climate in Delhi — Humid Subtropical, comfort 88/100