May weather forecastRanwala, Sri Lanka
May
Weather in May
The last month of the spring, May, is another warm month in Ranwala, Sri Lanka, with an average temperature fluctuating between 28.3°C (82.9°F) and 21.8°C (71.2°F).Temperature
In May, Ranwala experiences a minor shift in meteorological conditions with average high-temperatures marked at a moderately hot 28.3°C (82.9°F), closely mirroring the climate in April. Ranwala, in May, experiences an average temperature of 21.8°C (71.2°F) at night.Heat index
May's average heat index is computed to be a tropical 34°C (93.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated 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. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The months with the highest humidity in Ranwala, Sri Lanka, are May and June, with an average relative humidity of 88%.Rainfall
In Ranwala, in May, during 29.8 rainfall days, 270mm (10.63") of precipitation is typically accumulated. In Ranwala, during the entire year, the rain falls for 317.7 days and collects up to 2467mm (97.13") of precipitation.Daylight
The average length of the day in May is 12h and 26min.On the first day of the month, sunrise is at 05:55 and sunset at 18:17. On the last day of May, sunrise is at 05:52 and sunset at 18:22 +0530.
Sunshine
In Ranwala, the average sunshine in May is 7.6h.UV index
January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index in Ranwala. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ranwala, Sri Lanka
- Average high temperature in May: 28.3°C
The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°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 (18.7°C).
Average pressure in May
Ranwala, Sri Lanka
- Average pressure in May: 1008.6mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in May
Ranwala, Sri Lanka
- Average wind speed in May: 6.5km/h
The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).
Average humidity in May
Ranwala, Sri Lanka
- Average humidity in May: 88%
The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).
Average rainfall in May
Ranwala, Sri Lanka
- Average rainfall in May: 270mm
The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in May
Ranwala, Sri Lanka
- Average rainfall days in May: 29.8 days
The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).
Average daylight in May /
Average sunshine in May
Ranwala, 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 42min).
- Average sunshine in May: 7h and 36min
The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in May
Ranwala, Sri Lanka
- Average sunshine days in May: 0.8 days
The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).
Average UV index in May
Ranwala, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
The months with the lowest UV index are September and October (UV index 5).
Average cloud cover in May
Ranwala, Sri Lanka
- Average cloud cover in May: 61
The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).
Average visibility in May
Ranwala, Sri Lanka
- Average visibility in May: 7km
The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).
