Dehiwala weather in May (Colombo District, Sri Lanka)
Will it be warm or cold in Dehiwala this May? Our guide gives you the essential weather details for this month.
Temperatures
May in Dehiwala generally includes very high temperatures and heavy rainfall. Expect daytime highs to reach approximately 31°C, with nighttime lows dipping to around 26°C. Average temperatures can be deceiving; some days will be hotter. Wear breathable fabrics and drink plenty of water to stay cool.
Precipitation
Dehiwala in May falls under the rainy season with heavy rainfall, averaging around 298 mm for the month. Expect around 14 days of rain based on historical data.Average sunshine
Expect a lot of sunshine this month, with about 202 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit Dehiwala. January, February and March generally stand out with the best circumstances. While April, May, June, July, August, September, October and November tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Dehiwala climate page with graphs.
Dehiwala, monthly averages in May
Min Temperature
26°C
Max Temperature
31°C
Water Temperature
28°C *
Chance of Rain
46%
Precipitation
298 mm
Rainy days
14 days
Humidity
77% *
Windspeed
7 km/h *
Sunshine
202 hours *
Percentage Sunshine
*
Where to go in Sri Lanka in May
Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 28°C this is a great month to swim so bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Dehiwala.
Our site offers climate and forecast data for every country in the world. Are you going to Sri Lanka? On this website you can find historical weather averages for many cities in Sri Lanka. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
