Temperatures in May

It's hot in May in Sri Lanka with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 21°C and 22°C.

Max and Min Temperatures per Day

This chart shows the daily maximum and minimum temperatures in degrees Celsius for Sri Lanka in May. The red line indicates the max temperatures, and the blue line shows the minimums.

Start of May

The month of May starts in Sri Lanka with hot temperatures, averaging around 31°C during the day and nights close to 22°C. Plenty of days with a chance of precipitation.

Mid-May

By mid-May, the average daytime temperature drops to around 30°C, with nights close to 22°C. The chance of precipitation is high during this period.

End of May

By the end of May, the average daytime temperature in Sri Lanka will be around 30°C, with nights close to 22°C. There’s a significant chance of many days with precipitation.

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Precipitation in May

In May, there is an average of 272 mm of precipitation, spread over 20 days. The wind speed is around 3 Bft, mostly coming from the Southwest.

The average precipitation chance this month is 65% per day. Though that seems frequent, there are also a few days with lower precipitation chances.

Precipitation Chance

This chart shows the daily precipitation chance (in percentages) in May for Sri Lanka. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.

Sri Lanka in May		UK
Average Temperature	30°C	18°C
High Temp	31°C	21°C
Low Temp	29°C	15°C
Total Precipitation	272 mm	46 mm
Rainy Days	20 days	8 days

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UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Is May a good time to visit Sri Lanka?

After some sun? Then May isn’t the best time to be in Sri Lanka. The temperature is pleasant, but there’s too much chance of rain this month.

Temperature records for Sri Lanka in May

With 34°C, Sri Lanka hit the highest temperature in the last 10 years in May 2020. The lowest daytime temperature in this month was 22°C in 2016. The extreme night temperatures ranged from a low of 15°C to a high of 25°C.

Check out the climate of Sri Lanka for all months and discover the best travel time

The climate of Sri Lanka is based on weather data from Kandy. Other locations might have different weather. You can check out all destinations in Sri Lanka for a full picture of the climate.

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Daily Temperature in May in Sri Lanka

This chart shows the average daily temperatures, both day and night, for each day in May in Sri Lanka, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.

Daily Precipitation in May in Sri Lanka

The chart below shows the average daily precipitation in May for Sri Lanka, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 20 days of rain in Sri Lanka.

Daily UV Index in May in Sri Lanka

This chart shows the average daily UV index in May in Sri Lanka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Temperature in May in Sri Lanka Over the Years

This chart shows the average temperature in May in Sri Lanka, measured in degrees Celsius, over the past years.

Total Precipitation in May in Sri Lanka Over the Years

This chart shows the average precipitation in May in Sri Lanka, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.

April

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Daily climate in May for Sri Lanka

Click on a specific day in May for detailed info on the typical weather on that day in Sri Lanka. Check out the historical temperatures and precipitation over the past 10 years on this day.

Average Weather in Sri Lanka by Month

Click on a month below to see detailed weather info for Sri Lanka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.