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 arrival brings an average high-temperature of a still warm 27.6°C (81.7°F), demonstrating subtle variation from the preceding month. Throughout May, an average low-temperature of 18.6°C (65.5°F) is expected.Heat index
During May, the heat index is evaluated at a tropical 31°C (87.8°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in May in La Unión is 82%.Rainfall
In May, in La Unión, the rain falls for 28.7 days. Throughout May, 213mm (8.39") of precipitation is accumulated. In La Unión, during the entire year, the rain falls for 297.7 days and collects up to 1500mm (59.06") of precipitation.Daylight
In La Unión, the average length of the day in May is 12h and 50min.On the first day of the month, sunrise is at 05:33 and sunset at 18:14. On the last day of May, sunrise is at 05:26 and sunset at 18:23 CST.
Sunshine
In La Unión, the average sunshine in May is 9.3h.UV index
March through June, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during May leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in La Unión?
What is the average humidity in May in La Unión?
How much does it rain in La Unión in May?
How many hours of daylight does La Unión have in May?
When are sunrise and sunset in May in La Unión?
How long on average sun shines in May in La Unión?
When is the highest UV index in La Unión?
How high is the UV index in May in La Unión?
Average temperature in May
La Unión, Guatemala
- Average high temperature in May: 27.6°C
The warmest month (with the highest average high temperature) is April (28.8°C).
The month with the lowest average high temperature is January (21.8°C).
- Average low temperature in May: 18.6°C
The month with the highest average low temperature is May (18.6°C).
The coldest month (with the lowest average low temperature) is January (14.1°C).
Average pressure in May
La Unión, Guatemala
- Average pressure in May: 1012.2mbar
The month with the highest atmospheric pressure is January (1015.9mbar).
The months with the lowest atmospheric pressure are May and September (1012.2mbar).
Average wind speed in May
La Unión, Guatemala
- Average wind speed in May: 5.2km/h
The windiest month (with the highest average wind speed) is January (7.8km/h).
The calmest month (with the lowest average wind speed) is September (4.4km/h).
Average humidity in May
La Unión, Guatemala
- Average humidity in May: 82%
The months with the highest relative humidity are October and November (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
La Unión, Guatemala
- Average rainfall in May: 213mm
The wettest month (with the highest rainfall) is September (261mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in May
La Unión, Guatemala
- Average rainfall days in May: 28.7 days
The month with the highest number of rainy days is September (29.2 days).
The month with the least rainy days is February (19.1 days).
Average daylight in May /
Average sunshine in May
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: 9h and 2min
The month with the most sunshine is April (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).
Average sunshine days in May
La Unión, Guatemala
- Average sunshine days in May: 1.4 days
The month with the most sunshine days is March (8.3 days).
The month with the least sunshine days is September (0.7 days).
Average UV index in May
La Unión, Guatemala
- Average UV index in May: 6
The months with the highest UV index are March, April, May and June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in May
La Unión, Guatemala
- Average cloud cover in May: 52
The month with the most cloud cover is November (Cloud cover 75).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in May
La Unión, Guatemala
- Average visibility in May: 7km
The month with the highest visibility is April (8km).
The months with the lowest visibility are October, November and December (5km).
