May weather forecastAswalapitiya, Sri Lanka

May

Weather in May

May, the last month of the spring in Aswalapitiya, is another tropical month, with an average temperature varying between 21.8°C (71.2°F) and 30.1°C (86.2°F).

Temperature

The transition into May notes an average high-temperature of a still hot 30.1°C (86.2°F), revealing a mild distinction from the 31.2°C (88.2°F) in April. An average minimum temperature of 21.8°C (71.2°F) is recorded during the month of May.

Heat index

The heat index in May is computed to be a torrid 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. 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 significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in May is 80%.

Rainfall

In Aswalapitiya, Sri Lanka, in May, during 28.6 rainfall days, 163mm (6.42") of precipitation is typically accumulated. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In Aswalapitiya, the average length of the day in May is 12h and 28min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:15. On the last day of May, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

In Aswalapitiya, Sri Lanka, the average sunshine in May is 10.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Aswalapitiya. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

The average high-temperature, in May, in Aswalapitiya, is 30.1°C (86.2°F), while the average low-temperature is 21.8°C (71.2°F). In May, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is computed to be 38°C (100.4°F).

In Aswalapitiya, the average relative humidity in May is 80%.

In May, in Aswalapitiya, Sri Lanka, the rain falls for 28.6 days. Throughout May, 163mm (6.42") of precipitation is accumulated.

In Aswalapitiya, the average day length in May is 12h and 28min.

On the first day of May in Aswalapitiya, Sri Lanka, sunrise is at 05:52 and sunset at 18:15. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.

In Aswalapitiya, the average sunshine duration in May is 10.4h.

The months with the highest UV index in Aswalapitiya are January through September, November and December, with an average maximum UV index of 6.

The average daily maximum UV index in May in Aswalapitiya, Sri Lanka, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Aswalapitiya, Sri Lanka

  • Average high temperature in May: 30.1°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in May: 21.8°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in May
Aswalapitiya, Sri Lanka

  • Average pressure in May: 1008.2mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in May
Aswalapitiya, Sri Lanka

  • Average wind speed in May: 9.3km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in May
Aswalapitiya, Sri Lanka

  • Average humidity in May: 80%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in May
Aswalapitiya, Sri Lanka

  • Average rainfall in May: 163mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in May
Aswalapitiya, Sri Lanka

  • Average rainfall days in May: 28.6 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

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

  • Average daylight in May: 12h and 30min

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: 10h and 24min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Aswalapitiya, Sri Lanka

  • Average sunshine days in May: 1.2 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in May
Aswalapitiya, Sri Lanka

  • Average UV index in May: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in May
Aswalapitiya, Sri Lanka

  • Average cloud cover in May: 35

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in May
Aswalapitiya, Sri Lanka

  • Average visibility in May: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).