Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
San Antonio del Monte starts September with an average high-temperature of a moderately hot 29.2°C (84.6°F), a minor shift from August's 30°C (86°F). Throughout the month of September, San Antonio del Monte sees a steady low-temperature average of 22.1°C (71.8°F).Heat index
The heat index in September is calculated to be a torrid 36°C (96.8°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The months with the highest humidity in San Antonio del Monte, El Salvador, are September and October, with an average relative humidity of 81%.Rainfall
In San Antonio del Monte, in September, it is raining for 24 days, with typically 113mm (4.45") of accumulated precipitation. In San Antonio del Monte, during the entire year, the rain falls for 166.9 days and collects up to 832mm (32.76") of precipitation.Daylight
In San Antonio del Monte, the average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 05:47 and sunset at 18:10. On the last day of September, sunrise is at 05:48 and sunset at 17:49 CST.
Sunshine
In September, the average sunshine in San Antonio del Monte is 9.6h.UV index
June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in San Antonio del Monte in September?
What are the most humid months in San Antonio del Monte?
What is the average humidity in September in San Antonio del Monte?
How many days does it rain in September in San Antonio del Monte?
What is the average length of the day in September in San Antonio del Monte?
What time are sunrise and sunset in September in San Antonio del Monte?
How long on average sun shines in September in San Antonio del Monte?
What is the month with the lowest UV index in San Antonio del Monte?
How high is the UV index in September in San Antonio del Monte?
Average temperature in September
San Antonio del Monte, El Salvador
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (28.6°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in September
San Antonio del Monte, El Salvador
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in September
San Antonio del Monte, El Salvador
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is June (6.1km/h).
Average humidity in September
San Antonio del Monte, El Salvador
- Average humidity in September: 81%
The months with the highest relative humidity are September and October (81%).
The month with the lowest relative humidity is March (64%).
Average rainfall in September
San Antonio del Monte, El Salvador
- Average rainfall in September: 113mm
The wettest month (with the highest rainfall) is October (161mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
San Antonio del Monte, El Salvador
- Average rainfall days in September: 24 days
The month with the highest number of rainy days is September (24 days).
The month with the least rainy days is December (1.7 days).
Average daylight in September /
Average sunshine in September
San Antonio del Monte, El Salvador
- Average daylight in September: 12h and 1min
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 September: 9h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
San Antonio del Monte, El Salvador
- Average sunshine days in September: 4.4 days
The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (4.4 days).
Average UV index in September
San Antonio del Monte, El Salvador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May and July (UV index 7).
The months with the lowest UV index are June, August, September, October, November and December (UV index 6).
Average cloud cover in September
San Antonio del Monte, El Salvador
- Average cloud cover in September: 37
The months with the most cloud cover are June and September (Cloud cover 37).
The months with the least cloud cover are January and December (Cloud cover 12).
Average visibility in September
San Antonio del Monte, El Salvador
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, November and December (10km).
The month with the lowest visibility is October (9km).
