May weather forecast
Kalalgoda, Sri Lanka

May

Weather in May

The last month of the spring, May, is another tropical month in Kalalgoda, Sri Lanka, with an average temperature varying between 26.3°C (79.3°F) and 30.6°C (87.1°F).

Temperature

The transition from April to May sees average high-temperatures adjusting to a still tropical 30.6°C (87.1°F), from a not significantly different 31.8°C (89.2°F). Nighttime temperature reflects an average dip to a warm 26.3°C (79.3°F) in May, subtly cooler than its daytime highs.

Heat index

For May, the heat index is calculated to be a scorching 40°C (104°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in May is 81%.

Rainfall

In Kalalgoda, in May, it is raining for 28.8 days, with typically 306mm (12.05") of accumulated precipitation. Throughout the year, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.

Daylight

In Kalalgoda, the average length of the day in May is 12h and 26min.
On the first day of May, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, sunrise is at 05:53 and sunset at 18:22 +0530.

Sunshine

In May, the average sunshine is 8.6h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

How hot does it get in May?
Kalalgoda in May has an average high-temperature of 30.6°C (87.1°F) and an average low-temperature of 26.3°C (79.3°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in May is calculated to be 40°C (104°F).
What is the average humidity in May?
The average relative humidity in May is 81%.
How much does it rain in May?
In Kalalgoda, during May, the rain falls for 28.8 days and regularly aggregates up to 306mm (12.05") of precipitation.
What is the average length of the day in May?
The average day length in May is 12h and 26min.
When are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, sunrise is at 05:53 and sunset at 18:22 +0530.
How long on average sun shines in May?
The average sunshine duration in May is 8.6h.
What are the months with the lowest UV index?
The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6.
What is the UV index reading in May?
The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Kalalgoda, Sri Lanka
Average temperature in May
Kalalgoda, Sri Lanka
  • Average high temperature in May: 30.6°C

The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).

  • Average low temperature in May: 26.3°C

The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).

Average pressure in May - Kalalgoda, Sri Lanka
Average pressure in May
Kalalgoda, Sri Lanka
  • Average pressure in May: 1008.6mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in May - Kalalgoda, Sri Lanka
Average wind speed in May
Kalalgoda, Sri Lanka
  • Average wind speed in May: 12.9km/h

The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).

Average humidity in May - Kalalgoda, Sri Lanka
Average humidity in May
Kalalgoda, Sri Lanka
  • Average humidity in May: 81%

The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).

Average rainfall in May - Kalalgoda, Sri Lanka
Average rainfall in May
Kalalgoda, Sri Lanka
  • Average rainfall in May: 306mm

The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).

Average rainfall days in May - Kalalgoda, Sri Lanka
Average rainfall days in May
Kalalgoda, Sri Lanka
  • Average rainfall days in May: 28.8 days

The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).

Average daylight in May / Average sunshine in May - Kalalgoda, Sri Lanka
Average daylight in May /
Average sunshine in May
Kalalgoda, Sri Lanka
  • Average daylight in May: 12h and 2min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in May - Kalalgoda, Sri Lanka
Average sunshine days in May
Kalalgoda, Sri Lanka
  • Average sunshine days in May: 1.3 days

The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).

Average UV index in May - Kalalgoda, Sri Lanka
Average UV index in May
Kalalgoda, Sri Lanka
  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).

Average cloud cover in May - Kalalgoda, Sri Lanka
Average cloud cover in May
Kalalgoda, Sri Lanka
  • Average cloud cover in May: 54

The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).

Average visibility in May - Kalalgoda, Sri Lanka
Average visibility in May
Kalalgoda, Sri Lanka
  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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