Colombo Weather in January
Sri Lanka · Tropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Colombo sees average temperatures ranging from a low of 22.7°C (72.9°F) to a high of 30.1°C (86.2°F), with a mean of 25.9°C (78.6°F). Compared to the annual average of 26.7°C (80.1°F), this month is 0.8°C cooler than the yearly norm. Precipitation averages 119.8mm, making it approximately 129.0mm drier than the monthly average of 249.0mm. The city receives an average of 10.0 hours of sunshine per day during January, with relative humidity averaging 80.8%. Wind speeds reach an average maximum of 15.4 km/h. For travelers, this month offers a temperature experience in Colombo, with drier-than-average conditions compared to the rest of the year.
Colombo's tropical climate is warm and humid year-round, with two monsoon seasons. I've tracked the rainfall patterns and found that the city receives most of its rain from May to August and October to January. The best time for visiting is January to April, when the weather is drier and the coastal attractions are most enjoyable.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 25.9°C (78.6°F) | 25.9°C (78.6°F) | 26.8°C (80.2°F) |
| Rainfall | 198.0mm | 119.8mm | 40.7mm |
| Sunshine | 8.9 hrs | 10.0 hrs | 11.1 hrs |
| Humidity | 84.5% | 80.8% | 77.3% |
| Wind | 15.0 km/h | 15.4 km/h | 17.3 km/h |
| Rainy Days | 25.8 | 20.4 | 17.0 |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Colombo in January, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Colombo in January?
The average temperature in Colombo during January ranges from 22.7°C (72.9°F) to 30.1°C (86.2°F), with a mean of 25.9°C (78.6°F).
How much does it rain in Colombo in January?
Colombo receives an average of 119.8mm of precipitation in January, spread across approximately 20.4 rainy days.
What should I pack for Colombo in January?
Based on January weather data, pack lightweight, breathable clothing, sunscreen, and a hat. Rain gear is essential — this month averages 119.8mm of precipitation.
Is January a good time to visit Colombo?
January is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Colombo
Cities with Similar January Climate (Tropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 6.93°, 79.85°. Timezone: Asia/Colombo. Last updated: 2026-07-30.