Average temperatures, rainfall and packing tips for Colombo, Sri Lanka in May
🌡️ Avg high
30°C
🌙 Avg low
26°C
🌧️ Rainfall
~644 mm
📊 Warmth rank
#5 of 12
May in Colombo at a glance
May in Colombo is typically hot, with average daytime highs around 30°C and nights near 26°C. Temperature-wise it sits mid-range for Colombo (the 5th warmest month).
May is typically the wettest month of the year in Colombo, with around 644 mm of rain - plan around showers.
What to pack for Colombo in May
Light, breathable clothing (cotton or linen)
Sun protection: hat, sunglasses and SPF
A refillable water bottle
A rain jacket or umbrella - this is one of the wetter months
Colombo - year at a glance
HighLow · May highlighted
Is May a good time to visit Colombo?
🧳 May is one of the most comfortable months to visit Colombo - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.
In May, Colombo averages a daytime high of about 30°C and a night-time low of around 26°C, based on recent historical data.
Does it rain in Colombo in May?
May is typically the wettest month of the year in Colombo, with around 644 mm of rain - plan around showers.
Is May a good time to visit Colombo?
May is one of the most comfortable months to visit Colombo - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.