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
With May's arrival, San Andres's weather records an average high-temperature of a still tropical 32.1°C (89.8°F), marking little difference from April's 33.8°C (92.8°F). In San Andres, May nights witness a steady temperature drop to a pleasant 22.2°C (72°F).Heat index
For May, the heat index is appraised at a blistering 43°C (109.4°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
The average relative humidity in May is 75%.Rainfall
The month with the most rainfall in San Andres is May, when the rain falls for 25.4 days and typically aggregates up to 242mm (9.53") of precipitation.Daylight
The average length of the day in May in San Andres is 12h and 46min.On the first day of the month, sunrise is at 05:35 and sunset at 18:13. On the last day of May, sunrise is at 05:28 and sunset at 18:22 CST.
Sunshine
In San Andres, the average sunshine in May is 10.7h.UV index
February through May, with an average maximum UV index of 7, are months with the highest UV index in San Andres. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 7 in May suggests the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in San Andres in May?
What is the average humidity in May in San Andres?
What is the rainiest month in San Andres?
How many days does it rain in May in San Andres?
How many hours of daylight does San Andres have in May?
What time are sunrise and sunset in May in San Andres?
How long on average sun shines in May in San Andres?
What are the months with the highest UV index in San Andres?
How high is the UV index in May in San Andres?
Average temperature in May
San Andres, El Salvador
- Average high temperature in May: 32.1°C
The warmest month (with the highest average high temperature) is March (34.1°C).
The month with the lowest average high temperature is October (29.6°C).
- Average low temperature in May: 22.2°C
The month with the highest average low temperature is April (22.3°C).
The coldest month (with the lowest average low temperature) is December (18.6°C).
Average pressure in May
San Andres, El Salvador
- Average pressure in May: 1011.4mbar
The month with the highest atmospheric pressure is January (1013.7mbar).
The months with the lowest atmospheric pressure are May and October (1011.4mbar).
Average wind speed in May
San Andres, El Salvador
- Average wind speed in May: 4.4km/h
The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity in May
San Andres, El Salvador
- Average humidity in May: 75%
The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is March (59%).
Average rainfall in May
San Andres, El Salvador
- Average rainfall in May: 242mm
The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in May
San Andres, El Salvador
- Average rainfall days in May: 25.4 days
The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (1.5 days).
Average daylight in May /
Average sunshine in May
San Andres, El Salvador
- Average daylight in May: 12h and 5min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in May
San Andres, El Salvador
- Average sunshine days in May: 4.1 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is September (1.3 days).
Average UV index in May
San Andres, El Salvador
- Average UV index in May: 7
The months with the highest UV index are February, March, April and May (UV index 7).
The months with the lowest UV index are January, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in May
San Andres, El Salvador
- Average cloud cover in May: 37
The month with the most cloud cover is September (Cloud cover 44).
The months with the least cloud cover are January and December (Cloud cover 14).
Average visibility in May
San Andres, El Salvador
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (7km).
