May weather forecast
Moolai, Sri Lanka

May

Weather in May

The last month of the spring, May, is another hot month in Moolai, Sri Lanka, with an average temperature varying between 30.3°C (86.5°F) and 29°C (84.2°F).

Temperature

Moolai observes a minor difference in average high-temperatures between April's 30.4°C (86.7°F) and May's 30.3°C (86.5°F). Moolai encounters an average temperature dip to a moderately hot 29°C (84.2°F) throughout May, subtly lower than its daytime maximum.

Heat index

May's heat index is calculated to be a torrid 38°C (100.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. 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 particularly meaningful for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity are May, August and September, with an average relative humidity of 79%.

Rainfall

In May, in Moolai, the rain falls for 6.9 days. Throughout May, 26mm (1.02") of precipitation is accumulated. Throughout the year, in Moolai, Sri Lanka, there are 148.6 rainfall days, and 769mm (30.28") of precipitation is accumulated.

Daylight

In Moolai, the average length of the day in May is 12h and 34min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:21. On the last day of May, in Moolai, sunrise is at 05:48 and sunset at 18:27 +0530.

Sunshine

In Moolai, Sri Lanka, the average sunshine in May is 11.5h.

UV index

The months with the highest UV index in Moolai are January through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in May transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

How hot is May in Moolai?
In Moolai, in May, the average high-temperature is 30.3°C (86.5°F), and the average low-temperature is 29°C (84.2°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in May is calculated to be 38°C (100.4°F).
What is the most humid month in Moolai?
The months with the highest humidity are May, August and September, with an average relative humidity of 79%.
What is the average humidity in May in Moolai?
The average relative humidity in May in Moolai is 79%.
How many days does it rain in May in Moolai?
In May, in Moolai, the rain falls for 6.9 days. Throughout May, 26mm (1.02") of precipitation is accumulated.
What is the average length of the day in May in Moolai?
The average day length in May in Moolai, Sri Lanka, is 12h and 34min.
When is the sunrise / sunset in May in Moolai?
In May, on the first day of the month, sunrise is at 05:53 and sunset at 18:21. On the last day of the month, in Moolai, Sri Lanka, sunrise is at 05:48 and sunset at 18:27 +0530.
How long on average sun shines in May in Moolai?
The average sunshine duration in May is 11.5h.
What is the month with the highest UV index in Moolai?
January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Moolai.
What is the UV index reading in May in Moolai?
The average daily maximum UV index in May in Moolai, Sri Lanka, is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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 - Moolai, Sri Lanka
Average temperature in May
Moolai, Sri Lanka
  • Average high temperature in May: 30.3°C

The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).

  • Average low temperature in May: 29°C

The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).

Average pressure in May - Moolai, Sri Lanka
Average pressure in May
Moolai, Sri Lanka
  • Average pressure in May: 1006.5mbar

The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).

Average wind speed in May - Moolai, Sri Lanka
Average wind speed in May
Moolai, Sri Lanka
  • Average wind speed in May: 28.5km/h

The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).

Average humidity in May - Moolai, Sri Lanka
Average humidity in May
Moolai, Sri Lanka
  • Average humidity in May: 79%

The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).

Average rainfall in May - Moolai, Sri Lanka
Average rainfall in May
Moolai, Sri Lanka
  • Average rainfall in May: 26mm

The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).

Average rainfall days in May - Moolai, Sri Lanka
Average rainfall days in May
Moolai, Sri Lanka
  • Average rainfall days in May: 6.9 days

The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).

Average daylight in May / Average sunshine in May - Moolai, Sri Lanka
Average daylight in May /
Average sunshine in May
Moolai, Sri Lanka
  • Average daylight in May: 12h and 4min

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

  • Average sunshine in May: 11h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in May - Moolai, Sri Lanka
Average sunshine days in May
Moolai, Sri Lanka
  • Average sunshine days in May: 23.7 days

The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).

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

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

Average cloud cover in May - Moolai, Sri Lanka
Average cloud cover in May
Moolai, Sri Lanka
  • Average cloud cover in May: 23

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).

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

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

englishespañol中文
Share