Sri Lanka Colombo Weather in January — Climate Guide
January in Colombo is very-high
January is very-high for Colombo.
January is the heart of Colombo's dry season and the peak of the tourist year. It averages a hot, humid 31°C/23°C with the year's lowest rainfall (about 60mm) and plenty of sun.
This is the most reliable month for the city and the south/west coasts — Galle, Bentota, and Unawatuna are at their best, and whale watching from Mirissa is in full swing. Clear skies make Galle Face Green sunsets, the ramparts of Galle Fort, and the Lotus Tower views especially good.
Travel score
Colombo January Weather Stats
Avg High
31°C
Avg Low
23°C
Rainy Days
8
60mm total
Sunshine
8h
Daily avg
Humidity
75%
muggy
UV Index
11
Extreme
Wind
12 km/h
Gusts 22
Crowds
Busy
At attractions
January Sunrise & Sunset
Air Quality
PM2.5
26 μg/m³
PM10
48 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
25°C
Humidity and wind affect how the actual temperature feels.
Wind
12 km/h
Max gust 22 km/h
Activities Recommended for January
January Travel Pros & Cons
Pros
- Driest, sunniest weather of the year
- Best month for Galle and the south/west beaches
- Whale watching from Mirissa in season
- Clear skies for sunsets and views
Cons
- Peak-season crowds and prices
- Hot and humid all day
- Extreme UV — sun protection essential
- Popular train seats and hotels sell out
January Events & Festivals
- Peak tourist season — driest, sunniest weather
- Tamil Thai Pongal (mid-January) — harvest festival
- Duruthu Poya full-moon day — temple ceremonies
- Best month for the west/south coast and Galle
Colombo in January — Full Picture
January is the heart of Colombo's dry season and the peak of the tourist year. It averages a hot, humid 31°C/23°C with the year's lowest rainfall (about 60mm) and plenty of sun.
This is the most reliable month for the city and the south/west coasts — Galle, Bentota, and Unawatuna are at their best, and whale watching from Mirissa is in full swing. Clear skies make Galle Face Green sunsets, the ramparts of Galle Fort, and the Lotus Tower views especially good.
It's also the busiest and priciest stretch, so book hotels and the popular hill-country train seats ahead. The UV index is extreme year-round here, so sun protection matters even on a temple day.
Note the heat and humidity are constant — pace outdoor sightseeing for mornings and late afternoons, and keep hydrated with bottled water. Air conditioning is worth having in your room.
What to Wear & What to Pack
Peak dry season — hot and humid around 31°C/23°C with the year's lowest rainfall and lots of sun. Light, breathable clothing, a hat, sunglasses, and SPF 50+ (UV is extreme). A scarf or sarong for temples; a light layer for strong air conditioning indoors.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
31.7°C
25°C
13/mo
Summer (Jun·Jul·Aug)
30°C
26°C
12/mo
Autumn (Sep·Oct·Nov)
30°C
24.3°C
16/mo
Winter (Dec·Jan·Feb)
Current30.7°C
23°C
8.3/mo
Colombo Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 31° | 23° | 8d·60mm | 8h | 75% | 11 | Busy | Peak |
| February (Best) | 31° | 23° | 6d·70mm | 9h | 73% | 12 | Busy | Peak |
| March (Best) | 32° | 24° | 8d·110mm | 8.5h | 75% | 12 | Busy | Shoulder |
| 32° | 25° | 14d·230mm | 7.5h | 78% | 12 | Moderate | Shoulder | |
| 31° | 26° | 17d·350mm | 6.5h | 80% | 11 | Quiet | Low season | |
| 30° | 26° | 15d·220mm | 6.5h | 79% | 11 | Quiet | Low season | |
| 30° | 26° | 11d·135mm | 7h | 78% | 11 | Moderate | Shoulder | |
| 30° | 26° | 10d·110mm | 7.5h | 77% | 11 | Moderate | Shoulder | |
| 30° | 25° | 12d·160mm | 7h | 78% | 11 | Quiet | Low season | |
| 30° | 24° | 19d·350mm | 6h | 80% | 11 | Quiet | Low season | |
| 30° | 24° | 17d·320mm | 6.5h | 80% | 11 | Moderate | Shoulder | |
| December (Best) | 30° | 23° | 11d·150mm | 7.5h | 77% | 11 | Busy | Peak |
View Other Months
Colombo January Hotel Picks
Frequently Asked Questions
Is January a good time to visit Colombo?
Colombo in January is very-high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Colombo in January?
Colombo January averages a high of 31°C and a low of 23°C.
Does it rain much in Colombo in January?
Colombo January averages 60mm of rainfall over about 8 rainy days.
What should I wear in Colombo in January?
Peak dry season — hot and humid around 31°C/23°C with the year's lowest rainfall and lots of sun. Light, breathable clothing, a hat, sunglasses, and SPF 50+ (UV is extreme). A scarf or sarong for temples; a light layer for strong air conditioning indoors.
What time are sunrise and sunset in Colombo in January?
Colombo January sunrise is 06:25 and sunset is 18:10, with 11h 45min of daylight.
What's the air quality like in Colombo in January?
Colombo January air quality (AQI) averages 60, rated Moderate. PM2.5 averages 26μg/m³.
What activities are recommended in Colombo in January?
In January, Colombo is great for Galle Fort day trip in clear weather, Whale watching from Mirissa, Galle Face Green sunsets.
Is January peak season in Colombo?
Colombo January crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Colombo
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.