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
The advent of May observes an average high-temperature of a still tropical 31.1°C (88°F), nearly identical to April's 33.2°C (91.8°F). Santiago de la Frontera records an average nighttime low of 20.7°C (69.3°F) in May.Heat index
The average heat index in May is appraised at a scorching 40°C (104°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In May, the average relative humidity is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 23.7 days and accumulates 198mm (7.8") of precipitation.Daylight
In May, the average length of the day is 12h and 47min.On the first day of May, sunrise is at 05:35 and sunset at 18:15. On the last day of the month, sunrise is at 05:29 and sunset at 18:23 CST.
Sunshine
In May, the average sunshine in Santiago de la Frontera is 10.3h.UV index
The months with the highest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Santiago de la Frontera in May?
What is the average humidity in May in Santiago de la Frontera?
What is the wettest month in Santiago de la Frontera?
How much does it rain in Santiago de la Frontera in May?
What is the average length of the day in May in Santiago de la Frontera?
When are sunrise and sunset in May in Santiago de la Frontera?
How long on average sun shines in May in Santiago de la Frontera?
When is the highest UV index in Santiago de la Frontera?
What is the UV index reading in May in Santiago de la Frontera?
Average temperature in May
Santiago de la Frontera, El Salvador
- Average high temperature in May: 31.1°C
The warmest month (with the highest average high temperature) is April (33.2°C).
The month with the lowest average high temperature is October (27.9°C).
- Average low temperature in May: 20.7°C
The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in May
Santiago de la Frontera, El Salvador
- Average pressure in May: 1011.7mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are May and October (1011.7mbar).
Average wind speed in May
Santiago de la Frontera, El Salvador
- Average wind speed in May: 4.7km/h
The windiest month (with the highest average wind speed) is January (9km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).
Average humidity in May
Santiago de la Frontera, El Salvador
- Average humidity in May: 77%
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).
Average rainfall in May
Santiago de la Frontera, El Salvador
- Average rainfall in May: 198mm
The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in May
Santiago de la Frontera, El Salvador
- Average rainfall days in May: 23.7 days
The month with the highest number of rainy days is June (25 days).
The month with the least rainy days is January (1.9 days).
Average daylight in May /
Average sunshine in May
Santiago de la Frontera, El Salvador
- 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 2min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).
Average sunshine days in May
Santiago de la Frontera, El Salvador
- Average sunshine days in May: 5.7 days
The months with the most sunshine days are January and December (28.5 days).
The month with the least sunshine days is September (3.7 days).
Average UV index in May
Santiago de la Frontera, El Salvador
- Average UV index in May: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in May
Santiago de la Frontera, El Salvador
- Average cloud cover in May: 42
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in May
Santiago de la Frontera, El Salvador
- Average visibility in May: 8km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).
