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 presence records an average high-temperature of a still hot 30°C (86°F), closely mirroring April's climate. In the month of May, Santo Tomás La Unión's average low-temperature falls to an agreeable 20.5°C (68.9°F).Heat index
The heat index for May is appraised at a very hot 36°C (96.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'real feel', gives a temperature feeling by integrating air temperature and humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In Santo Tomás La Unión, the average relative humidity in May is 74%.Rainfall
May is the month with the most rainfall. Rain falls for 26.4 days and accumulates 274mm (10.79") of precipitation.Daylight
In Santo Tomás La Unión, Guatemala, the average length of the day in May is 12h and 49min.On the first day of the month, sunrise is at 05:42 and sunset at 18:22. On the last day of May, sunrise is at 05:35 and sunset at 18:31 CST.
Sunshine
In Santo Tomás La Unión, the average sunshine in May is 10.8h.UV index
The months with the highest UV index in Santo Tomás La Unión are January through December, with an average maximum UV index of 6. The months with the lowest UV index in Santo Tomás La Unión, Guatemala, are January through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 6 in May translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Santo Tomás La Unión during May?
What is the average humidity in May in Santo Tomás La Unión?
What is the rainiest month in Santo Tomás La Unión?
How much does it rain in Santo Tomás La Unión in May?
What is the average length of the day in May in Santo Tomás La Unión?
When are sunrise and sunset in May in Santo Tomás La Unión?
How long on average sun shines in May in Santo Tomás La Unión?
When is the highest UV index in Santo Tomás La Unión?
What are the months with the lowest UV index in Santo Tomás La Unión?
What is the UV index reading in May in Santo Tomás La Unión?
Average temperature in May
Santo Tomás La Unión, Guatemala
- Average high temperature in May: 30°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is September (28.5°C).
- Average low temperature in May: 20.5°C
The month with the highest average low temperature is May (20.5°C).
The coldest month (with the lowest average low temperature) is December (17.6°C).
Average pressure in May
Santo Tomás La Unión, Guatemala
- Average pressure in May: 1012.3mbar
The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in May
Santo Tomás La Unión, Guatemala
- Average wind speed in May: 5.1km/h
The windiest month (with the highest average wind speed) is March (6.6km/h).
The calmest month (with the lowest average wind speed) is May (5.1km/h).
Average humidity in May
Santo Tomás La Unión, Guatemala
- Average humidity in May: 74%
The months with the highest relative humidity are September and October (79%).
The months with the lowest relative humidity are January, February and March (59%).
Average rainfall in May
Santo Tomás La Unión, Guatemala
- Average rainfall in May: 274mm
The wettest month (with the highest rainfall) is May (274mm).
The driest months (with the least rainfall) are January and February (7mm).
Average rainfall days in May
Santo Tomás La Unión, Guatemala
- Average rainfall days in May: 26.4 days
The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (4.8 days).
Average daylight in May /
Average sunshine in May
Santo Tomás La Unión, Guatemala
- Average daylight in May: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in May: 10h and 5min
The months with the most sunshine are April and July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in May
Santo Tomás La Unión, Guatemala
- Average sunshine days in May: 2.9 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is September (1.5 days).
Average UV index in May
Santo Tomás La Unión, Guatemala
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in May
Santo Tomás La Unión, Guatemala
- Average cloud cover in May: 34
The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in May
Santo Tomás La Unión, Guatemala
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
