May weather forecast
Katugastota, Sri Lanka

May

Weather in May

The last month of the spring, May, is another tropical month in Katugastota, Sri Lanka, with an average temperature ranging between max 30.1°C (86.2°F) and min 21.8°C (71.2°F).

Temperature

The transition into May shows a subtle variation to a still tropical 30.1°C (86.2°F) from April's 31.2°C (88.2°F) in the average high-temperature. During May, the nighttime temperature averages to an agreeable 21.8°C (71.2°F).

Heat index

May's mean heat index is computed to be a fiery hot 38°C (100.4°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Katugastota, in May, it is raining for 28.6 days, with typically 163mm (6.42") of accumulated precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

The average length of the day in May is 12h and 28min.
On the first day of May in Katugastota, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.

Sunshine

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

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot is May?
An average high-temperature, in May, in Katugastota, is 30.1°C (86.2°F) and the average low-temperature is 21.8°C (71.2°F). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 38°C (100.4°F).
What is the average humidity in May?
In May, the average relative humidity is 80%.
How much does it rain in May?
In Katugastota, in May, it is raining for 28.6 days, with typically 163mm (6.42") of accumulated precipitation.
How many hours of daylight does Katugastota have in May?
In May, the average day length is 12h and 28min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 05:52 and sunset at 18:16. On the last day of the month, sunrise is at 05:49 and sunset at 18:20 +0530.
How long on average sun shines in May?
In May, the average sunshine duration is 10.4h.
What are the months with the highest UV index?
The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6.
What is the UV index reading in May?
In Katugastota, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Katugastota, Sri Lanka
Average temperature in May
Katugastota, 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 - Katugastota, Sri Lanka
Average pressure in May
Katugastota, 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 - Katugastota, Sri Lanka
Average wind speed in May
Katugastota, 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 - Katugastota, Sri Lanka
Average humidity in May
Katugastota, 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 - Katugastota, Sri Lanka
Average rainfall in May
Katugastota, 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 - Katugastota, Sri Lanka
Average rainfall days in May
Katugastota, 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 - Katugastota, Sri Lanka
Average daylight in May /
Average sunshine in May
Katugastota, Sri Lanka
  • Average daylight in May: 12h and 3min

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 2min

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 - Katugastota, Sri Lanka
Average sunshine days in May
Katugastota, 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 - Katugastota, Sri Lanka
Average UV index in May
Katugastota, 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 - Katugastota, Sri Lanka
Average cloud cover in May
Katugastota, 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 - Katugastota, Sri Lanka
Average visibility in May
Katugastota, 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).

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