May weather forecastPallegammedda, Sri Lanka
May
Weather in May
The last month of the spring, May, is another warm month in Pallegammedda, Sri Lanka, with an average temperature ranging between min 19.1°C (66.4°F) and max 27.3°C (81.1°F).Temperature
The arrival of May sees a recorded average high-temperature of a still warm 27.3°C (81.1°F), showing little divergence from the previous month's conditions. Throughout the month of May, Pallegammedda sees a steady low-temperature average of 19.1°C (66.4°F).Heat index
In May, the average heat index is estimated at a tropical 31°C (87.8°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In May, the average relative humidity in Pallegammedda is 86%.Rainfall
In Pallegammedda, Sri Lanka, in May, during 29.8 rainfall days, 290mm (11.42") of precipitation is typically accumulated. In Pallegammedda, during the entire year, the rain falls for 297.7 days and collects up to 2800mm (110.24") 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 05:52 and sunset at 18:15. On the last day of May, in Pallegammedda, sunrise is at 05:49 and sunset at 18:19 +0530.
Sunshine
In May, the average sunshine is 9.1h.UV index
February through August, with an average maximum UV index of 6, are months with the highest UV index in Pallegammedda. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 6 in May suggests the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Pallegammedda, Sri Lanka
- Average high temperature in May: 27.3°C
The warmest month (with the highest average high temperature) is April (27.6°C).
The month with the lowest average high temperature is December (24.3°C).
- Average low temperature in May: 19.1°C
The month with the highest average low temperature is May (19.1°C).
The coldest month (with the lowest average low temperature) is February (15.3°C).
Average pressure in May
Pallegammedda, Sri Lanka
- Average pressure in May: 1008.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in May
Pallegammedda, Sri Lanka
- Average wind speed in May: 6.3km/h
The windiest month (with the highest average wind speed) is June (9.1km/h).
The calmest month (with the lowest average wind speed) is April (3.3km/h).
Average humidity in May
Pallegammedda, Sri Lanka
- Average humidity in May: 86%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is March (80%).
Average rainfall in May
Pallegammedda, Sri Lanka
- Average rainfall in May: 290mm
The wettest month (with the highest rainfall) is October (656mm).
The driest month (with the least rainfall) is January (85mm).
Average rainfall days in May
Pallegammedda, 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 February (16.3 days).
Average daylight in May /
Average sunshine in May
Pallegammedda, Sri Lanka
- Average daylight in May: 12h and 30min
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: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Pallegammedda, Sri Lanka
- Average sunshine days in May: 0.8 days
The month with the most sunshine days is February (11 days).
The month with the least sunshine days is May (0.8 days).
Average UV index in May
Pallegammedda, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are February, March, April, May, June, July and August (UV index 6).
The months with the lowest UV index are January, September, October, November and December (UV index 5).
Average cloud cover in May
Pallegammedda, Sri Lanka
- Average cloud cover in May: 52
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in May
Pallegammedda, Sri Lanka
- Average visibility in May: 7km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are November and December (6km).





