May weather forecastHewaheta, Sri Lanka
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Hewaheta, Sri Lanka, with an average temperature varying between 27.3°C (81.1°F) and 19.1°C (66.4°F).Temperature
As May takes hold, the average high-temperature is a still warm 27.3°C (81.1°F), nearly mirroring that of the previous month. In Hewaheta, the average nighttime temperature during May is a comfortable 19.1°C (66.4°F).Heat index
The heat index for May is appraised at a hot 31°C (87.8°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Note that heat index values are valued for light wind and location in the shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Hewaheta, the average relative humidity in May is 86%.Rainfall
In Hewaheta, during May, the rain falls for 29.8 days and regularly aggregates up to 290mm (11.42") of precipitation. Throughout the year, there are 297.4 rainfall days, and 2784mm (109.61") of precipitation is accumulated.Daylight
The average length of the day in May in Hewaheta is 12h and 27min.On the first day of May, sunrise is at 05:52 and sunset at 18:15. On the last day of the month, sunrise is at 05:49 and sunset at 18:19 +0530.
Sunshine
In May, the average sunshine in Hewaheta is 9.1h.UV index
February through September, with an average maximum UV index of 6, are months with the highest UV index in Hewaheta. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hewaheta, 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
Hewaheta, 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
Hewaheta, 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
Hewaheta, 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
Hewaheta, 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
Hewaheta, 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
Hewaheta, 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: 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
Hewaheta, 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
Hewaheta, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in May
Hewaheta, 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
Hewaheta, 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).
