Colombo

Colombo District Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Colombo District, Sri Lanka in May.

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Colombo Mount Lavinia Dehiwala Nugegoda

Planning a getaway to Colombo District, Sri Lanka this May and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Colombo District in May

Colombo District, Sri Lanka is a region in Sri Lanka. May in Colombo District generally has very warm temperatures, with heavy precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 26°C (79°F) in Colombo. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across Colombo District, Sri Lanka, refer to the map below.

Precipitation

In May, precipitation varies across different areas. From heavy rainfall in Weliwita with an average of 286 mm (11 in) to heavy rainfall in Avissawella with 322 mm (13 in).

Average sunshine

Most destinations offer generous amounts of sunshine this May. For example, Colombo gets approximately 202 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Colombo District by month

Pick a month to see the average temperature, rainfall and sunshine in Colombo District — and find the best time to visit. (based on Colombo)

January32°C (90°F) February33°C (91°F) March33°C (91°F) April32°C (90°F) May31°C (88°F) June30°C (86°F) This monthJuly30°C (86°F) August30°C (86°F) September30°C (86°F) October30°C (86°F) November31°C (88°F) December31°C (88°F)
Best Time to Visit Colombo District →

Best Places to Visit in Colombo District in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Colombo District.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Colombo District

What is the weather like in May for some of the most popular destinations in Colombo District, Sri Lanka?

Temperature range in Colombo District (May)

Precipitation variation in Colombo District (May)

Colombo

In May Colombo generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« April
May
June »
April
May
June
Max temperature
32°C (90°F)
31°C (88°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
234 hours
202 hours
195 hours
Monthly rainfall
204 mm (8 in)
294 mm (12 in)
285 mm (11 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
poor
poor
poor
Climate in Colombo →

Mount Lavinia

In May Mount Lavinia generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« April
May
June »
April
May
June
Max temperature
32°C (90°F)
31°C (88°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
234 hours
202 hours
195 hours
Monthly rainfall
207 mm (8.1 in)
299 mm (12 in)
287 mm (11 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
poor
poor
poor
Climate in Mount Lavinia →

Dehiwala

In May Dehiwala generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« April
May
June »
April
May
June
Max temperature
32°C (90°F)
31°C (88°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
234 hours
202 hours
195 hours
Monthly rainfall
206 mm (8.1 in)
298 mm (12 in)
287 mm (11 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
poor
poor
poor
Climate in Dehiwala →

Nugegoda

In May Nugegoda generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« April
May
June »
April
May
June
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
234 hours
202 hours
195 hours
Monthly rainfall
208 mm (8.2 in)
296 mm (12 in)
289 mm (11 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
poor
poor
poor
Climate in Nugegoda →

Boralesgamuwa

In May Boralesgamuwa generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« April
May
June »
April
May
June
Max temperature
32°C (90°F)
31°C (88°F)
31°C (88°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly sun hours
234 hours
202 hours
195 hours
Monthly rainfall
211 mm (8.3 in)
297 mm (12 in)
291 mm (11 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
poor
poor
poor
Climate in Boralesgamuwa →

Is your destination not in the list? Have a look at all destinations in Colombo District, in Sri Lanka.

Popular cities in May

Day & night temperatures, rainfall and average weather in Colombo District in May.

City Weather Day temp Night temp Rainfall
Colombo 31°C (88°F) 26°C (79°F) 294 mm (12 in)
Mount Lavinia 31°C (88°F) 26°C (79°F) 299 mm (12 in)
Dehiwala 31°C (88°F) 26°C (79°F) 298 mm (12 in)
Nugegoda 31°C (88°F) 26°C (79°F) 296 mm (12 in)
Boralesgamuwa 31°C (88°F) 26°C (79°F) 297 mm (12 in)
Sri Jayewardenepura Kotte 31°C (88°F) 26°C (79°F) 292 mm (11 in)

Colombo District weather in May: frequently asked questions

What is the weather like in Colombo District, Sri Lanka in May?

Expect poor weather across Colombo District, Sri Lanka in May. The popular destination of Colombo averages 31°C (88°F) by day and 26°C (79°F) at night during this month.

What is the average temperature in Colombo District, Sri Lanka in May?

In Colombo, the average daytime high in May is 31°C (88°F), while nighttime temperatures drop to around 26°C (79°F).

Does Colombo District, Sri Lanka get a lot of rain in May?

Expect plenty of rainfall. Colombo records an average of 294 mm (12 in) in May, putting it among the wetter months for Colombo District, Sri Lanka.

Is May a Good Time to Visit Colombo District, Sri Lanka?

In our opinion, May may not be the ideal time to visit Colombo District, Sri Lanka due to the typically poor weather in Colombo.

Generally speaking, January provides tolerable weather in Colombo. The weather in April, May, June, July, August, September, October, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Colombo District.

Weather and climate has detailed information for every country in the world. Are you going to Sri Lanka? Get detailed 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.

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