May weather forecastBataduwa, Sri Lanka
May
Weather in May
May, the last month of the spring in Bataduwa, is another warm month, with an average temperature fluctuating between 29.5°C (85.1°F) and 26.7°C (80.1°F).Temperature
May's commencement is accompanied by an average high-temperature of a moderately hot 29.5°C (85.1°F), diverging marginally from April's 30.3°C (86.5°F). May nights in Bataduwa witness a slight temperature decrease, averaging at 26.7°C (80.1°F).Heat index
The heat index value for May is calculated to be a torrid 36°C (96.8°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Consider that heat index readings are for situations in the shade and light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
The average relative humidity in May is 81%.Rainfall
The month with the most rainfall in Bataduwa is May, when the rain falls for 27.7 days and typically aggregates up to 302mm (11.89") of precipitation.Daylight
In Bataduwa, the average length of the day in May is 12h and 24min.On the first day of May in Bataduwa, Sri Lanka, sunrise is at 05:55 and sunset at 18:16. On the last day of the month, sunrise is at 05:53 and sunset at 18:20 +0530.
Sunshine
In May, the average sunshine is 9h.UV index
The months with the lowest UV index in Bataduwa are May and September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In May, the UV index of 6 transforms into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bataduwa, Sri Lanka
- Average high temperature in May: 29.5°C
The warmest months (with the highest average high temperature) are March and April (30.3°C).
The months with the lowest average high temperature are August and September (28.3°C).
- Average low temperature in May: 26.7°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in May
Bataduwa, Sri Lanka
- Average pressure in May: 1008.9mbar
The month with the highest atmospheric pressure is January (1011.4mbar).
The month with the lowest atmospheric pressure is May (1008.9mbar).
Average wind speed in May
Bataduwa, Sri Lanka
- Average wind speed in May: 16.3km/h
The windiest month (with the highest average wind speed) is June (20.2km/h).
The calmest month (with the lowest average wind speed) is January (7.8km/h).
Average humidity in May
Bataduwa, Sri Lanka
- Average humidity in May: 81%
The months with the highest relative humidity are June and September (82%).
The months with the lowest relative humidity are February and March (77%).
Average rainfall in May
Bataduwa, Sri Lanka
- Average rainfall in May: 302mm
The wettest month (with the highest rainfall) is May (302mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in May
Bataduwa, Sri Lanka
- Average rainfall days in May: 27.7 days
The month with the highest number of rainy days is June (28 days).
The month with the least rainy days is January (14.8 days).
Average daylight in May /
Average sunshine in May
Bataduwa, Sri Lanka
- Average daylight in May: 12h and 24min
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: 9h and 0min
The month with the most sunshine is April (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Bataduwa, Sri Lanka
- Average sunshine days in May: 1.4 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is June (1 days).
Average UV index in May
Bataduwa, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, June, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May and September (UV index 6).
Average cloud cover in May
Bataduwa, Sri Lanka
- Average cloud cover in May: 50
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 26).
Average visibility in May
Bataduwa, Sri Lanka
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, June and December (10km).
The months with the lowest visibility are May, July, August, September, October and November (9km).





