Polonnaruwa
Sri Lanka
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Polonnaruwa, Sri Lanka

The last month of the spring, May, is another hot month in Polonnaruwa, Sri Lanka, with average temperature ranging between min 25°C (77°F) and max 33°C (91.4°F).

Temperature

The warmest months are April through June, with an average high-temperature of 33°C (91.4°F).

Rainfall

In Polonnaruwa, during 7 rainfall days, 80mm (3.1") of precipitation is typically accumulated. Throughout the year, in Polonnaruwa, there are 105 rainfall days, and 1719mm (67.7") of precipitation is accumulated.

Daylight

In May, the average length of the day in Polonnaruwa, Sri Lanka, is 12.5h.

Sunshine

The average sunshine in Polonnaruwa is 7h.

UV index

Months with the highest UV index in Polonnaruwa are February through October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What are the warmest months in Polonnaruwa?

Warmest months are April through June, with an average high-temperature of 33°C (91.4°F).

What is the temperature in May in Polonnaruwa?

The average high-temperature, in May, in Polonnaruwa, Sri Lanka, is 33°C (91.4°F), while the average low-temperature is 25°C (77°F).

How many days does it rain in May in Polonnaruwa?

In Polonnaruwa, Sri Lanka, during May, the rain falls for 7 days and regularly aggregates up to 80mm (3.1") of precipitation.

How many hours of daylight does Polonnaruwa have in May?

In May, the average length of the day in Polonnaruwa is 12.5h.

How long on average sun shines in May in Polonnaruwa?

In May, the average sunshine is 7h.

When is the highest UV index in Polonnaruwa?

February through October, with an average maximum UV index of 12, are months with the highest UV index in Polonnaruwa.

What is the UV index reading in May in Polonnaruwa?

In Polonnaruwa, the average daily maximum UV index in May is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Polonnaruwa, Sri Lanka
  • Average high temperature in May: 33°C

Warmest months (with the highest average high temperature) are April, May and June (33°C).
Months with the lowest average high temperature are January and December (29°C).

  • Average low temperature in May: 25°C

Months with the highest average low temperature are April, May, June, July and August (25°C).
Coldest months (with the lowest average low temperature) are January, February, November and December (23°C).

Average rainfall in May - Polonnaruwa, Sri Lanka
  • Average rainfall in May: 80mm

The wettest month (with the highest rainfall) is December (322mm).
The driest month (with the lowest rainfall) is June (48mm).

Average rainfall days in May - Polonnaruwa, Sri Lanka
  • Average rainfall days in May: 7 days

The month with the highest number of rainy days is November (15 days).
The month with the lowest number of rainy days is February (5 days).

Average daylight in May / Average sunshine in May - Polonnaruwa, Sri Lanka
  • Average daylight in May: 12.5h

The month with the longest days is June (Average daylight: 12.6h).
Months with shortest days are January and December (Average daylight: 11.7h).

  • Average sunshine in May: 7h

The month with most sunshine is March (Average sunshine: 9h).
Months with least sunshine are June, July, September, October, November and December (Average sunshine: 6).

Average UV index in May - Polonnaruwa, Sri Lanka
  • Average UV index in May: 12

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).