May weather forecast
Pamunugama, Sri Lanka

May

Weather in May

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

Temperature

With the start of May, Pamunugama measures an average high-temperature of a still hot 30.2°C (86.4°F), not significantly differing from April's 31.3°C (88.3°F). Maintaining close parity with daytime warmth, the average nocturnal temperature in Pamunugama during May stays at a moderately hot 26.3°C (79.3°F).

Heat index

The heat index for May is computed to be a torrid 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

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

Rainfall

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

Daylight

The average length of the day in May is 12h and 27min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, sunrise is at 05:53 and sunset at 18:23 +0530.

Sunshine

In Pamunugama, the average sunshine in May 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 Pamunugama. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

How hot is it in Pamunugama in May?
In Pamunugama, in May, the average high-temperature is 30.2°C (86.4°F), and the average low-temperature is 26.3°C (79.3°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in May is computed to be 39°C (102.2°F).
What is the average humidity in May in Pamunugama?
The average relative humidity in May is 81%.
How many days does it rain in May in Pamunugama?
In Pamunugama, during May, the rain falls for 28 days and regularly aggregates up to 303mm (11.93") of precipitation.
What is the average length of the day in May in Pamunugama?
In May, the average day length in Pamunugama, Sri Lanka, is 12h and 27min.
When are sunrise and sunset in May in Pamunugama?
On the first day of May in Pamunugama, Sri Lanka, sunrise is at 05:56 and sunset at 18:18. On the last day of the month, sunrise is at 05:53 and sunset at 18:23 +0530.
How many hours of sunshine does Pamunugama have in May?
In Pamunugama, the average sunshine duration in May is 8.7h.
When is the lowest UV index in Pamunugama?
The months with the lowest UV index in Pamunugama, Sri Lanka, are May, June and August, with an average maximum UV index of 6.
How high is the UV index in May in Pamunugama?
In May, the average daily maximum UV index in Pamunugama, Sri Lanka, is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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 42min).

  • 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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
Pamunugama, 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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