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
Weather in September
Temperature
The beginning of September records an average high-temperature of a warm 29.3°C (84.7°F), almost echoing the conditions of the previous month. An average low-temperature of 18.9°C (66°F) is recorded in the month of September.Heat index
In September, the heat index is computed to be a sweltering 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In September, the average relative humidity in El Congo is 85%.Rainfall
In El Congo, El Salvador, during September, the rain falls for 24.7 days and regularly aggregates up to 141mm (5.55") of precipitation. In El Congo, during the entire year, the rain falls for 181.4 days and collects up to 1055mm (41.54") of precipitation.Daylight
In El Congo, El Salvador, the average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 05:46 and sunset at 18:09. On the last day of the month, sunrise is at 05:47 and sunset at 17:48 CST.
Sunshine
In September, the average sunshine is 7.8h.UV index
The month with the lowest UV index in El Congo is September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Preventing sunburn is recommended. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in El Congo?
What is the average humidity in September in El Congo?
How many days does it rain in September in El Congo?
What is the average length of the day in September in El Congo?
When is the sunrise / sunset in September in El Congo?
How long on average sun shines in September in El Congo?
What is the month with the lowest UV index in El Congo?
What is the UV index intensity in September in El Congo?
Average temperature in September
El Congo, El Salvador
- Average high temperature in September: 29.3°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 September: 18.9°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 September
El Congo, El Salvador
- Average pressure in September: 1011.8mbar
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 September
El Congo, El Salvador
- Average wind speed in September: 4.2km/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 September
El Congo, El Salvador
- Average humidity in September: 85%
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).
Average rainfall in September
El Congo, El Salvador
- Average rainfall in September: 141mm
The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in September
El Congo, El Salvador
- Average rainfall days in September: 24.7 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 September /
Average sunshine in September
El Congo, 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: 7h and 5min
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 September
El Congo, El Salvador
- Average sunshine days in September: 3.7 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 September
El Congo, El Salvador
- Average UV index in September: 5
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 September
El Congo, El Salvador
- Average cloud cover in September: 57
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 September
El Congo, El Salvador
- Average visibility in September: 6km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).
El Congo, El Salvador
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