May weather forecast
Sigiriya, Sri Lanka

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Weather in May

May sees a slight break in the escalating temperature trends, as the mercury levels drop to 34.2°C (93.6°F). Despite the reduce in temperature, Sigiriya experiences a hike in rainfall with an 83mm (3.27") downpour, meaning there is a chance for a bit more cloud cover. The sun graces the city for 12.5 hours, and the UV Index stays constant. There is a marked increase in wind speed, affirming the seasonal change. One should be prepared for swift weather changes, thus packing some light rainy-day gear might be helpful.

Temperature

As Sigiriya welcomes May, the average high-temperature stabilizes at a still tropical 34.2°C (93.6°F), showing little deviation from April's 34.9°C (94.8°F). An average nighttime temperature of 24.5°C (76.1°F) is observed during May.

Heat index

The heat index for May is computed to be a burning hot 49°C (120.2°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Sigiriya, the average relative humidity in May is 72%.

Rainfall

In Sigiriya, during May, the rain falls for 17.4 days and regularly aggregates up to 83mm (3.27") of precipitation. Throughout the year, in Sigiriya, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 29min.
On the first day of May, sunrise is at 05:51 and sunset at 18:16. On the last day of the month, sunrise is at 05:48 and sunset at 18:21 +0530.

Sunshine

The average sunshine in May in Sigiriya is 11.2h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot is it in Sigiriya in May?

In May, the average high-temperature and low-temperature are 34.2°C (93.6°F) and 24.5°C (76.1°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in May is computed to be 49°C (120.2°F).

What is the average humidity in May in Sigiriya?

In Sigiriya, the average relative humidity in May is 72%.

How much does it rain in Sigiriya in May?

In Sigiriya, Sri Lanka, during May, the rain falls for 17.4 days and regularly aggregates up to 83mm (3.27") of precipitation.

How many hours of daylight does Sigiriya have in May?

In May, the average day length in Sigiriya, Sri Lanka, is 12h and 29min.

When are sunrise and sunset in May in Sigiriya?

In May, on the first day of the month, sunrise is at 05:51 and sunset at 18:16. On the last day of the month, in Sigiriya, sunrise is at 05:48 and sunset at 18:21 +0530.

How many hours of sunshine does Sigiriya have in May?

The average sunshine duration in May in Sigiriya, Sri Lanka, is 11.2h.

What is the month with the highest UV index in Sigiriya?

The months with the highest UV index are February through October, with an average maximum UV index of 7.

What is the UV index intensity in May in Sigiriya?

In May, the average daily maximum UV index in Sigiriya is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Average temperature in May
Sigiriya, Sri Lanka

Average temperature in May - Sigiriya, Sri Lanka
  • Average high temperature in May: 34.2°C

The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).

  • Average low temperature in May: 24.5°C

The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).

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Average pressure in May
Sigiriya, Sri Lanka

Average pressure in May - Sigiriya, Sri Lanka
  • Average pressure in May: 1007.8mbar

The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).

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Average wind speed in May
Sigiriya, Sri Lanka

Average wind speed in May - Sigiriya, Sri Lanka
  • Average wind speed in May: 15.9km/h

The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).

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Average humidity in May
Sigiriya, Sri Lanka

Average humidity in May - Sigiriya, Sri Lanka
  • Average humidity in May: 72%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).

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Average rainfall in May
Sigiriya, Sri Lanka

Average rainfall in May - Sigiriya, Sri Lanka
  • Average rainfall in May: 83mm

The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).

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Average rainfall days in May
Sigiriya, Sri Lanka

Average rainfall days in May - Sigiriya, Sri Lanka
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).

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Average daylight in May /
Average sunshine in May
Sigiriya, Sri Lanka

Average daylight in May / Average sunshine in May - Sigiriya, Sri Lanka
  • Average daylight in May: 12h and 3min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in May
Sigiriya, Sri Lanka

Average sunshine days in May - Sigiriya, Sri Lanka
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).

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Average UV index in May
Sigiriya, Sri Lanka

Average UV index in May - Sigiriya, Sri Lanka
  • Average UV index in May: 7

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

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Average cloud cover in May
Sigiriya, Sri Lanka

Average cloud cover in May - Sigiriya, Sri Lanka
  • Average cloud cover in May: 26

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).

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Average visibility in May
Sigiriya, Sri Lanka

Average visibility in May - Sigiriya, Sri Lanka
  • Average visibility in May: 10km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).

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Sigiriya, Sri Lanka

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