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
May
Weather in May
Temperature
May's onset records a minor alteration in the average high-temperature to a still tropical 30.8°C (87.4°F) from April's 32°C (89.6°F). An average low-temperature of 26.4°C (79.5°F) characterizes Galahitiyawa's May nights.Heat index
In May, the average heat index is computed to be a scorching 40°C (104°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Galahitiyawa, Sri Lanka, the average relative humidity in May is 80%.Rainfall
In Galahitiyawa, during May, the rain falls for 26.3 days and regularly aggregates up to 204mm (8.03") of precipitation. In Galahitiyawa, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.Daylight
The average length of the day in May is 12h and 28min.On the first day of the month, sunrise is at 05:55 and sunset at 18:18. On the last day of May, sunrise is at 05:51 and sunset at 18:23 +0530.
Sunshine
In May, the average sunshine is 8.8h.UV index
The months with the lowest UV index in Galahitiyawa, Sri Lanka, are May, June, August and October, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 6 in May leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full 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
How hot does it get in Galahitiyawa in May?
What is the average humidity in May in Galahitiyawa?
How many days does it rain in May in Galahitiyawa?
What is the average length of the day in May in Galahitiyawa?
When is the sunrise / sunset in May in Galahitiyawa?
How long on average sun shines in May in Galahitiyawa?
What is the month with the lowest UV index in Galahitiyawa?
What is the UV index reading in May in Galahitiyawa?
Average temperature in May
Galahitiyawa, Sri Lanka
- Average high temperature in May: 30.8°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).
- Average low temperature in May: 26.4°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure in May
Galahitiyawa, Sri Lanka
- Average pressure in May: 1008.4mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).
Average wind speed in May
Galahitiyawa, Sri Lanka
- Average wind speed in May: 15.5km/h
The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity in May
Galahitiyawa, Sri Lanka
- Average humidity in May: 80%
The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall in May
Galahitiyawa, Sri Lanka
- Average rainfall in May: 204mm
The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in May
Galahitiyawa, Sri Lanka
- Average rainfall days in May: 26.3 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).
Average daylight in May /
Average sunshine in May
Galahitiyawa, Sri Lanka
- Average daylight in May: 12h and 3min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in May: 8h and 5min
The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in May
Galahitiyawa, Sri Lanka
- Average sunshine days in May: 3.6 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).
Average UV index in May
Galahitiyawa, Sri Lanka
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in May
Galahitiyawa, Sri Lanka
- Average cloud cover in May: 52
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).
Average visibility in May
Galahitiyawa, Sri Lanka
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).
