Matara
Sri Lanka
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Matara, Sri Lanka

The last month of the spring, May, is another hot month in Matara, Sri Lanka, with temperature in the range of an average high of 30°C (86°F) and an average low of 25°C (77°F).

Temperature

In Matara, the average high-temperature is essentially the same as in April - a still hot 30°C (86°F). In May, in Matara, the average low-temperature is 25°C (77°F).

Rainfall

In May, the rain falls for 10 days. Throughout May, 228mm (9") of precipitation is accumulated. Throughout the year, there are 112 rainfall days, and 2024mm (79.7") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature is 29.1°C (84.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Matara, the average length of the day is 12.4h.

Sunshine

Months with the least sunshine in Matara are May through December, with an average of 6h of sunshine.

UV index

January through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from the exposure to the Sun's UV rays for the average person.
In May, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Matara?

The average high-temperature, in May, in Matara, is 30°C (86°F), while the average low-temperature is 25°C (77°F).

How many days does it rain in May in Matara?

In May, in Matara, Sri Lanka, the rain falls for 10 days. Throughout May, 228mm (9") of precipitation is accumulated.

How warm is the water in May in Matara?

In May, the average sea temperature in Matara is 29.1°C (84.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in May in Matara?

The average length of the day in May is 12.4h.

What is the month with the least sunshine in Matara?

May through December, with an average of 6h of sunshine, are months with the least sunshine in Matara.

How long on average sun shines in May in Matara?

In May, the average sunshine is 6h.

What are the months with the highest UV index in Matara?

Months with the highest UV index are January through October, with an average maximum UV index of 12.

How high is the UV index in May in Matara?

In May, the average daily maximum UV index in Matara is 12. A UV Index reading of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in May - Matara, Sri Lanka
  • Average high temperature in May: 30°C

Warmest months (with the highest average high temperature) are March and April (31°C).
Months with the lowest average high temperature are August, September and October (29°C).

  • Average low temperature in May: 25°C

Months with the highest average low temperature are May and June (25°C).
The coldest month (with the lowest average low temperature) is January (22°C).

Average rainfall in May - Matara, Sri Lanka
  • Average rainfall in May: 228mm

The wettest month (with the highest rainfall) is October (279mm).
The driest month (with the lowest rainfall) is January (84mm).

Average rainfall days in May - Matara, Sri Lanka
  • Average rainfall days in May: 10 days

The month with the highest number of rainy days is November (14 days).
Months with the lowest number of rainy days are January and February (5 days).

Average sea temperature in May - Matara, Sri Lanka
  • Average sea temperature in May: 29.1°C

The best month for swimming (with the highest average sea temperature) is April (29.6°C).
The coldest month (with the lowest average sea temperature) is January (27.7°C).

Average daylight in May / Average sunshine in May - Matara, Sri Lanka
  • Average daylight in May: 12.4h

The month with the longest days is June (Average daylight: 12.5h).
Months with shortest days are January and December (Average daylight: 11.8h).

  • Average sunshine in May: 6h

Months with most sunshine are February and March (Average sunshine: 8h).
Months with least sunshine are May, June, July, August, September, October, November and December (Average sunshine: 6).

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

Months with the highest UV index are January, February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are November and December (UV index 11).