Best Time to Visit Colombo
Sri Lanka · Tropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Colombo is:
January → February → December
January scores 57/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 43 | 86 | 0 | 0 | |
| February | 40 | 81 | 0 | 0 | |
| March | 39 | 78 | 0 | 0 | |
| April | 39 | 78 | 0 | 0 | |
| May | 39 | 78 | 0 | 0 | |
| June | 40 | 80 | 0 | 0 | |
| July | 40 | 80 | 0 | 0 | |
| August | 41 | 82 | 0 | 0 | |
| September | 41 | 82 | 0 | 0 | |
| October | 42 | 84 | 0 | 0 | |
| November | 43 | 86 | 0 | 0 | |
| December | 43 | 86 | 0 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | 25.9°C (78.6°F) | Hot (25-29°C) |
| February | 26.8°C (80.2°F) | Hot (25-29°C) |
| March | 27.3°C (81.1°F) | Hot (25-29°C) |
| April | 27.5°C (81.5°F) | Hot (25-29°C) |
| May | 27.4°C (81.3°F) | Hot (25-29°C) |
| June | 27.1°C (80.8°F) | Hot (25-29°C) |
| July | 26.9°C (80.4°F) | Hot (25-29°C) |
| August | 26.7°C (80.1°F) | Hot (25-29°C) |
| September | 26.5°C (79.7°F) | Hot (25-29°C) |
| October | 26.2°C (79.2°F) | Hot (25-29°C) |
| November | 25.7°C (78.3°F) | Hot (25-29°C) |
| December | 25.9°C (78.6°F) | Hot (25-29°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 119.8 mm | 20.4 | Very Wet |
| February | 40.7 mm | 17.0 | Moderate |
| March | 105.2 mm | 25.4 | Very Wet |
| April | 156.0 mm | 28.8 | Very Wet |
| May | 439.5 mm | 30.8 | Very Wet |
| June | 306.6 mm | 29.8 | Very Wet |
| July | 250.4 mm | 30.0 | Very Wet |
| August | 256.6 mm | 30.2 | Very Wet |
| September | 341.1 mm | 30.0 | Very Wet |
| October | 365.1 mm | 30.8 | Very Wet |
| November | 410.7 mm | 28.6 | Very Wet |
| December | 198.0 mm | 25.8 | Very Wet |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 10.0 hrs | Excellent |
| February | 11.1 hrs | Excellent |
| March | 10.8 hrs | Excellent |
| April | 10.5 hrs | Excellent |
| May | 8.3 hrs | Excellent |
| June | 9.5 hrs | Excellent |
| July | 9.3 hrs | Excellent |
| August | 9.6 hrs | Excellent |
| September | 8.6 hrs | Excellent |
| October | 8.4 hrs | Excellent |
| November | 7.5 hrs | Good |
| December | 8.9 hrs | Excellent |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 27.4°C (81.3°F)
Rainfall: 233.6mm avg
Sunshine: 9.9 hrs/day
Humidity: 83.3%
Rainy Days: 28.3/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Summer (Jun-Aug)
Temperature: 26.9°C (80.4°F)
Rainfall: 271.2mm avg
Sunshine: 9.5 hrs/day
Humidity: 85.4%
Rainy Days: 30.0/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Autumn (Sep-Nov)
Temperature: 26.1°C (79.0°F)
Rainfall: 372.3mm avg
Sunshine: 8.2 hrs/day
Humidity: 86.9%
Rainy Days: 29.8/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Winter (Dec-Feb)
Temperature: 26.2°C (79.2°F)
Rainfall: 119.5mm avg
Sunshine: 10.0 hrs/day
Humidity: 80.9%
Rainy Days: 21.1/mo
This is the warm season. Ideal for outdoor activities but be prepared for heat.
Frequently Asked Questions
What is the best time to visit Colombo?
Based on our data-driven analysis, the best months to visit Colombo are January, February, December, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. January scores 57/100, the highest-rated month.
What is the hottest month in Colombo?
April is the hottest month with an average temperature of 27.5°C (81.5°F).
What is the coldest month in Colombo?
November is the coldest month with an average temperature of 25.7°C (78.3°F).
When is the rainy season in Colombo?
May is the wettest month with an average of 439.5mm of precipitation. Colombo experiences about 328.0 rainy days per year. The driest month is February with 40.7mm.
What should I pack for a trip to Colombo?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (April is hottest at 27.5°C). For cooler months, bring layers and a warm jacket (November averages 25.7°C). A waterproof jacket or umbrella is recommended year-round as Colombo receives 2990.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
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.
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.