Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The advent of May brings an average high-temperature of a still hot 30.2°C (86.4°F), almost identical to the preceding month. Kahathuduwa, during May nights, records a temperature marginally cooler than the daytime average, at a warm 26.3°C (79.3°F).Heat index
The heat index for May is calculated to be a very hot 39°C (102.2°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Take into consideration that the heat index values are calculated for shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in May in Kahathuduwa is 81%.Rainfall
In Kahathuduwa, Sri Lanka, in May, during 28 rainfall days, 303mm (11.93") of precipitation is typically accumulated. In Kahathuduwa, Sri Lanka, during the entire year, the rain falls for 273.8 days and collects up to 2059mm (81.06") of precipitation.Daylight
In Kahathuduwa, the average length of the day in May is 12h and 26min.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 18:22 +0530.
Sunshine
In May, the average sunshine is 8.7h.UV index
The months with the lowest UV index are May, June and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Kahathuduwa during May?
What is the average humidity in May in Kahathuduwa?
How many days does it rain in May in Kahathuduwa?
What is the average length of the day in May in Kahathuduwa?
When is the sunrise / sunset in May in Kahathuduwa?
How long on average sun shines in May in Kahathuduwa?
When is the lowest UV index in Kahathuduwa?
How high is the UV index in May in Kahathuduwa?
Average temperature in May
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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
Kahathuduwa, 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).
