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
The initiation of September records an average high-temperature of a still tropical 31.7°C (89.1°F), displaying a near consistency with the previous month. During September, the average low-temperature is an agreeable 22.1°C (71.8°F).Heat index
During September, the heat index is estimated at a scorching 44°C (111.2°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In September, the average relative humidity is 81%.Rainfall
In Quelepa, in September, it is raining for 25.8 days, with typically 122mm (4.8") of accumulated precipitation. Throughout the year, in Quelepa, there are 188.2 rainfall days, and 954mm (37.56") of precipitation is accumulated.Daylight
In September, the average length of the day in Quelepa is 12h and 12min.On the first day of September in Quelepa, El Salvador, sunrise is at 05:41 and sunset at 18:03. On the last day of the month, sunrise is at 05:42 and sunset at 17:43 CST.
Sunshine
The average sunshine in September in Quelepa is 8.8h.UV index
September and October, with an average maximum UV index of 6, are months with the lowest UV index in Quelepa. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Quelepa in September?
What is the average humidity in September in Quelepa?
How much does it rain in Quelepa in September?
How many hours of daylight does Quelepa have in September?
When is the sunrise / sunset in September in Quelepa?
How long on average sun shines in September in Quelepa?
What is the month with the lowest UV index in Quelepa?
What is the UV index intensity in September in Quelepa?
Average temperature in September
Quelepa, El Salvador
- Average high temperature in September: 31.7°C
The warmest months (with the highest average high temperature) are March and April (35.1°C).
The month with the lowest average high temperature is October (30.8°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is April (24.4°C).
The coldest month (with the lowest average low temperature) is December (20.1°C).
Average pressure in September
Quelepa, El Salvador
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May and October (1011.3mbar).
Average wind speed in September
Quelepa, El Salvador
- Average wind speed in September: 4.5km/h
The windiest month (with the highest average wind speed) is January (7.4km/h).
The calmest months (with the lowest average wind speed) are September and October (4.5km/h).
Average humidity in September
Quelepa, El Salvador
- Average humidity in September: 81%
The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is March (55%).
Average rainfall in September
Quelepa, El Salvador
- Average rainfall in September: 122mm
The wettest month (with the highest rainfall) is October (179mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Quelepa, El Salvador
- Average rainfall days in September: 25.8 days
The month with the highest number of rainy days is September (25.8 days).
The month with the least rainy days is January (1.6 days).
Average daylight in September /
Average sunshine in September
Quelepa, 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: 8h and 5min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in September
Quelepa, El Salvador
- Average sunshine days in September: 2.7 days
The month with the most sunshine days is January (28.9 days).
The month with the least sunshine days is September (2.7 days).
Average UV index in September
Quelepa, El Salvador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, November and December (UV index 7).
The months with the lowest UV index are September and October (UV index 6).
Average cloud cover in September
Quelepa, El Salvador
- Average cloud cover in September: 40
The month with the most cloud cover is October (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in September
Quelepa, El Salvador
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are June, August, September and October (8km).
