May weather forecast
Potuwila, Sri Lanka

May

Weather in May

The last month of the spring, May, is another hot month in Potuwila, Sri Lanka, with an average temperature varying between 30.2°C (86.4°F) and 26.3°C (79.3°F).

Temperature

The arrival of May is marked by an average high-temperature of a still hot 30.2°C (86.4°F), bearing a close resemblance to April. In Potuwila, May nights maintain a consistent temperature, with an average low of 26.3°C (79.3°F).

Heat index

In May, the heat index is evaluated at a very hot 39°C (102.2°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

In Potuwila, in May, during 28 rainfall days, 303mm (11.93") of precipitation is typically accumulated. In Potuwila, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.

Daylight

In May, the average length of the day in Potuwila is 12h and 25min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:17. On the last day of May, sunrise is at 05:53 and sunset at 18:22 +0530.

Sunshine

The average sunshine in May in Potuwila, Sri Lanka, is 8.7h.

UV index

May, June and August, with an average maximum UV index of 6, are months with the lowest UV index in Potuwila. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, a daily UV index of 6 turns into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

How hot is it in Potuwila in May?
In May, in Potuwila, the average high-temperature is 30.2°C (86.4°F), and the average low-temperature is 26.3°C (79.3°F). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 39°C (102.2°F).
What is the average humidity in May in Potuwila?
The average relative humidity in May in Potuwila is 81%.
How many days does it rain in May in Potuwila?
In Potuwila, Sri Lanka, in May, it is raining for 28 days, with typically 303mm (11.93") of accumulated precipitation.
What is the average length of the day in May in Potuwila?
In May, the average day length in Potuwila is 12h and 25min.
What time are sunrise and sunset in May in Potuwila?
In May, on the first day of the month, sunrise is at 05:56 and sunset at 18:17. On the last day of the month, in Potuwila, Sri Lanka, sunrise is at 05:53 and sunset at 18:22 +0530.
How long on average sun shines in May in Potuwila?
The average sunshine duration in May in Potuwila is 8.7h.
What are the months with the lowest UV index in Potuwila?
May, June and August, with an average maximum UV index of 6, are months with the lowest UV index in Potuwila, Sri Lanka.
What is the UV index intensity in May in Potuwila?
In May, the average daily maximum UV index in Potuwila, Sri Lanka, 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 - Potuwila, Sri Lanka
Average temperature in May
Potuwila, Sri Lanka
  • Average high temperature in May: 30.2°C

The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°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 (23.4°C).

Average pressure in May - Potuwila, Sri Lanka
Average pressure in May
Potuwila, Sri Lanka
  • Average pressure in May: 1008.7mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).

Average wind speed in May - Potuwila, Sri Lanka
Average wind speed in May
Potuwila, Sri Lanka
  • Average wind speed in May: 13.3km/h

The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).

Average humidity in May - Potuwila, Sri Lanka
Average humidity in May
Potuwila, 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 (75%).

Average rainfall in May - Potuwila, Sri Lanka
Average rainfall in May
Potuwila, Sri Lanka
  • Average rainfall in May: 303mm

The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).

Average rainfall days in May - Potuwila, Sri Lanka
Average rainfall days in May
Potuwila, Sri Lanka
  • Average rainfall days in May: 28 days

The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).

Average daylight in May / Average sunshine in May - Potuwila, Sri Lanka
Average daylight in May /
Average sunshine in May
Potuwila, 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: 8h and 4min

The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).

Average sunshine days in May - Potuwila, Sri Lanka
Average sunshine days in May
Potuwila, Sri Lanka
  • Average sunshine days in May: 1.2 days

The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).

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

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

Average cloud cover in May - Potuwila, Sri Lanka
Average cloud cover in May
Potuwila, Sri Lanka
  • Average cloud cover in May: 52

The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).

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

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

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