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
Weather in May
Temperature
The commencement of May records an average high-temperature of a moderately hot 28.3°C (82.9°F), barely varying from April's 30°C (86°F). Rakwana, during May, witnesses an average low-temperature of 21.8°C (71.2°F).Heat index
For May, the heat index is computed to be a hot 34°C (93.2°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 extremely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The months with the highest humidity in Rakwana are May and June, with an average relative humidity of 88%.Rainfall
In May, the rain falls for 29.8 days. Throughout May, 270mm (10.63") of precipitation is accumulated. In Rakwana, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.Daylight
In May, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 05:53 and sunset at 18:15. On the last day of May, in Rakwana, Sri Lanka, sunrise is at 05:51 and sunset at 18:19 +0530.
Sunshine
In Rakwana, Sri Lanka, the average sunshine in May is 7.6h.UV index
The months with the highest UV index in Rakwana, Sri Lanka, are January through August, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Rakwana in May?
What are the most humid months in Rakwana?
What is the average humidity in May in Rakwana?
How many days does it rain in May in Rakwana?
How many hours of daylight does Rakwana have in May?
When is the sunrise / sunset in May in Rakwana?
How many hours of sunshine does Rakwana have in May?
What are the months with the highest UV index in Rakwana?
What is the UV index reading in May in Rakwana?
Average temperature in May
Rakwana, 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
Rakwana, 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
Rakwana, 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
Rakwana, 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
Rakwana, 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
Rakwana, 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
Rakwana, 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 48min).
- Average sunshine in May: 7h and 4min
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
Rakwana, 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
Rakwana, 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
Rakwana, 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
Rakwana, 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).
Rakwana, Sri Lanka
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