Temperatures in May
It's hot in May in Mahattuwa 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 22°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Mahattuwa 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 Mahattuwa with hot temperatures, averaging around 31°C during the day and nights close to 23°C. Plenty of days with a chance of precipitation.
Mid-May
By mid-May, the average daytime temperature stays the same at 31°C, with nights close to 23°C. The chance of precipitation is high during this period.
End of May
By the end of May, the average daytime temperature in Mahattuwa will be around 30°C, with nights close to 23°C. There’s a significant chance of many days with precipitation.
Precipitation in May
In May, there is an average of 391 mm of precipitation, spread over 22 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
There’s an average 72% chance of precipitation per day this month. 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 Mahattuwa. 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.
Mahattuwa in May |
London | ||
|---|---|---|---|
 Average Temperature |
30°C | 18°C | |
 High Temp |
31°C | 21°C | |
| Low Temp |
29°C | 15°C | |
 Total Precipitation |
391 mm | 46 mm | |
| Rainy Days |
22 days | 8 days | |
April
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 Mahattuwa?
After some sun? Then May isn’t the best time to be in Mahattuwa. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Mahattuwa in May
With 34°C, Mahattuwa hit the highest temperature in the last 10 years in May 2020. The lowest daytime temperature in this month was 23°C in 2018. The extreme night temperatures ranged from a low of 15°C to a high of 29°C.
Check out the climate of Mahattuwa for all months and discover the best travel time
Daily Temperature in May in Mahattuwa
This chart shows the average daily temperatures, both day and night, for each day in May in Mahattuwa, 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 Mahattuwa
The chart below shows the average daily precipitation in May for Mahattuwa, 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 22 days of rain in Mahattuwa.
Daily UV Index in May in Mahattuwa
This chart shows the average daily UV index in May in Mahattuwa, 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 Mahattuwa Over the Years
This chart shows the average temperature in May in Mahattuwa, measured in degrees Celsius, over the past years.
Total Precipitation in May in Mahattuwa Over the Years
This chart shows the average precipitation in May in Mahattuwa, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Mahattuwa
Click on a specific day in May for detailed info on the typical weather on that day in Mahattuwa. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Mahattuwa
Have you been to Mahattuwa in May?
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Average Weather in Mahattuwa by Month
Click on a month below to see detailed weather info for Mahattuwa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Mahattuwa for all months at once
