Verdict: Good month
Colombo Weather in January
January runs warm in Colombo, with daily highs around 30°C (86°F) and nights near 23°C (73°F). It's also the wet side of the calendar: rain falls on about 15 days, so build flexibility into plans. Overall, January is a solid month to visit Colombo.
Average high
30°C / 86°F
Average low
23°C / 73°F
Rain days
~15
Precipitation
120 mm
What to pack for Colombo in January
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 15 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
January against the rest of the year
Warmest in Colombo: Feb (31°C / 88°F) · Coolest: Sep (28°C / 82°F) · Wettest: May (~30 rain days)
30°
23°
Jan
31°
23°
Feb
31°
24°
Mar
31°
25°
Apr
30°
25°
May
29°
25°
Jun
29°
25°
Jul
29°
25°
Aug
28°
25°
Sep
28°
24°
Oct
29°
23°
Nov
29°
23°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)