May weather forecast
Kalegana, Sri Lanka

May

Weather in May

The last month of the spring, May, is also a moderately hot month in Kalegana, Sri Lanka, with an average temperature fluctuating between 29.5°C (85.1°F) and 26.7°C (80.1°F).

Temperature

The high-temperature average in May for Kalegana is a moderately hot 29.5°C (85.1°F), staying closely aligned with April's conditions. Kalegana's nighttime temperatures in May reveal a minimal variation from the daytime highs, averaging at 26.7°C (80.1°F).

Heat index

May's mean heat index is calculated to be a sweltering 36°C (96.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In May, the average relative humidity in Kalegana is 81%.

Rainfall

May is the month with the most rainfall. Rain falls for 27.7 days and accumulates 302mm (11.89") of precipitation.

Daylight

The average length of the day in May is 12h and 24min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:16. On the last day of May, in Kalegana, sunrise is at 05:53 and sunset at 18:20 +0530.

Sunshine

In Kalegana, the average sunshine in May is 9h.

UV index

The months with the lowest UV index are May and September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 in May translates into these instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

Is it hot during May?
In Kalegana, 29.5°C (85.1°F) is the average high-temperature and 26.7°C (80.1°F) is the average low-temperature during May. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is calculated to be 36°C (96.8°F).
What is the average humidity in May?
In Kalegana, the average relative humidity in May is 81%.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 27.7 days and accumulates 302mm (11.89") of precipitation.
How many days does it rain in May in Kalegana?
In Kalegana, in May, it is raining for 27.7 days, with typically 302mm (11.89") of accumulated precipitation.
How many hours of daylight does Kalegana have in May?
The average day length in May in Kalegana, Sri Lanka, is 12h and 24min.
When is the sunrise / sunset in May?
On the first day of May, sunrise is at 05:56 and sunset at 18:16. On the last day of the month, sunrise is at 05:53 and sunset at 18:20 +0530.
How long on average sun shines in May?
The average sunshine duration in May is 9h.
When is the lowest UV index?
The months with the lowest UV index are May and September, with an average maximum UV index of 6.
What is the UV index intensity in May?
The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
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 - Kalegana, Sri Lanka
Average temperature in May
Kalegana, Sri Lanka
  • Average high temperature in May: 29.5°C

The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).

  • Average low temperature in May: 26.7°C

The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).

Average pressure in May - Kalegana, Sri Lanka
Average pressure in May
Kalegana, Sri Lanka
  • Average pressure in May: 1008.9mbar

The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).

Average wind speed in May - Kalegana, Sri Lanka
Average wind speed in May
Kalegana, Sri Lanka
  • Average wind speed in May: 16.3km/h

The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).

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

The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).

Average rainfall in May - Kalegana, Sri Lanka
Average rainfall in May
Kalegana, Sri Lanka
  • Average rainfall in May: 302mm

The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in May - Kalegana, Sri Lanka
Average rainfall days in May
Kalegana, Sri Lanka
  • Average rainfall days in May: 27.7 days

The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).

Average daylight in May / Average sunshine in May - Kalegana, Sri Lanka
Average daylight in May /
Average sunshine in May
Kalegana, 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 48min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in May - Kalegana, Sri Lanka
Average sunshine days in May
Kalegana, Sri Lanka
  • Average sunshine days in May: 1.4 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).

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

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

Average cloud cover in May - Kalegana, Sri Lanka
Average cloud cover in May
Kalegana, Sri Lanka
  • Average cloud cover in May: 50

The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).

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

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

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