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
Tonacatepeque's average high-temperature marks a still hot 30.5°C (86.9°F) with the advent of September, closely mirroring that of the preceding month. Tonacatepeque's temperature in September lowers to a consistent average of 20.9°C (69.6°F) during the nights.Heat index
In September, the average heat index is estimated at an extremely hot 40°C (104°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The months with the highest humidity in Tonacatepeque are September and October, with an average relative humidity of 82%.Rainfall
In Tonacatepeque, in September, during 26.5 rainfall days, 150mm (5.91") of precipitation is typically accumulated. Throughout the year, in Tonacatepeque, there are 196.7 rainfall days, and 1216mm (47.87") of precipitation is accumulated.Daylight
The average length of the day in September in Tonacatepeque is 12h and 12min.On the first day of the month, sunrise is at 05:44 and sunset at 18:07. On the last day of September, in Tonacatepeque, sunrise is at 05:45 and sunset at 17:46 CST.
Sunshine
In September, the average sunshine is 9h.UV index
The months with the lowest UV index are May through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Tonacatepeque?
What is the most humid month in Tonacatepeque?
What is the average humidity in September in Tonacatepeque?
How many days does it rain in September in Tonacatepeque?
How many hours of daylight does Tonacatepeque have in September?
What time are sunrise and sunset in September in Tonacatepeque?
How many hours of sunshine does Tonacatepeque have in September?
What is the month with the lowest UV index in Tonacatepeque?
What is the UV index intensity in September in Tonacatepeque?
Average temperature in September
Tonacatepeque, El Salvador
- Average high temperature in September: 30.5°C
The warmest months (with the highest average high temperature) are March and April (33.4°C).
The month with the lowest average high temperature is October (29.7°C).
- Average low temperature in September: 20.9°C
The month with the highest average low temperature is May (22.6°C).
The coldest month (with the lowest average low temperature) is January (19°C).
Average pressure in September
Tonacatepeque, El Salvador
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1013.6mbar).
The months with the lowest atmospheric pressure are May and October (1011.3mbar).
Average wind speed in September
Tonacatepeque, El Salvador
- Average wind speed in September: 4.5km/h
The windiest month (with the highest average wind speed) is January (8km/h).
The calmest month (with the lowest average wind speed) is June (4.4km/h).
Average humidity in September
Tonacatepeque, El Salvador
- Average humidity in September: 82%
The months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is March (61%).
Average rainfall in September
Tonacatepeque, El Salvador
- Average rainfall in September: 150mm
The wettest month (with the highest rainfall) is May (267mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in September
Tonacatepeque, El Salvador
- Average rainfall days in September: 26.5 days
The month with the highest number of rainy days is May (26.9 days).
The month with the least rainy days is January (2.3 days).
Average daylight in September /
Average sunshine in September
Tonacatepeque, 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 0min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
Tonacatepeque, El Salvador
- Average sunshine days in September: 2.5 days
The month with the most sunshine days is January (27.7 days).
The month with the least sunshine days is September (2.5 days).
Average UV index in September
Tonacatepeque, El Salvador
- Average UV index in September: 6
The months with the highest UV index are January, February, March and April (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Tonacatepeque, El Salvador
- Average cloud cover in September: 41
The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in September
Tonacatepeque, 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).
