All countries

Best Time to Visit Sri Lanka

Climate based on Colombo • 2015–2024

The best overall weather in Sri Lanka is in May, with average highs around 30°C. The single best 14-day window: Dec 25 - Jan 7. The hottest month is February (31°C highs) and the coolest is September (28°C highs).

Year-at-a-glance heatmap

Each cell is colored by the typical daytime high for that day. Hover for rainfall and sunshine.

1
5
10
15
20
25
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
  • Freezingbelow 0°C
  • Very Cold0–5°C
  • Cold5–12°C
  • Fresh12–18°C
  • Comfortable18–25°C
  • Warm25–30°C
  • Very Warm30–39°C
  • Smoking Hot39°C+

Best 14-day travel windows

Top pick
Dec 25 - Jan 7
14-day window • Avg 26°C • Warm
Alternative 1
May 4 - May 17
14-day window • Avg 28°C • Very Warm
Alternative 2
Jan 8 - Jan 21
14-day window • Avg 26°C • Very Warm

Month-by-month breakdown

January

Very Warm
27°Cavg
  • 30°C / 23°C
  • 78mm total
  • 10.5h sun/day

February

Very Warm
27°Cavg
  • 31°C / 23°C
  • 54mm total
  • 11.1h sun/day

March

Very Warm
28°Cavg
  • 31°C / 24°C
  • 107mm total
  • 10.9h sun/day

April

Very Warm
28°Cavg
  • 31°C / 25°C
  • 155mm total
  • 10.4h sun/day

May

Warm
28°Cavg
  • 30°C / 26°C
  • 419mm total
  • 8.4h sun/day

June

Warm
27°Cavg
  • 29°C / 25°C
  • 311mm total
  • 9.5h sun/day

July

Warm
27°Cavg
  • 29°C / 25°C
  • 221mm total
  • 9.8h sun/day

August

Warm
27°Cavg
  • 29°C / 25°C
  • 240mm total
  • 9.7h sun/day

September

Warm
27°Cavg
  • 28°C / 25°C
  • 297mm total
  • 8.8h sun/day

October

Warm
26°Cavg
  • 29°C / 24°C
  • 393mm total
  • 8.2h sun/day

November

Warm
26°Cavg
  • 29°C / 24°C
  • 393mm total
  • 7.7h sun/day

December

Warm
26°Cavg
  • 30°C / 23°C
  • 168mm total
  • 9.2h sun/day

Plan your trip to Sri Lanka

Found your dates? Use TimeOffCalendar to line up the trip with your time off, public holidays, and your partner's schedule. Free for one person, forever.

Plan my time off
Climate data from Open-Meteo Archive API. Daily normals computed from 10 years of historical observations.
Best Time to Visit Sri Lanka (2026): Month-by-Month Weather Calendar