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
In Concepcion de Oriente, September's average high-temperature stands at a still hot 31.8°C (89.2°F), closely related to the preceding month. The average temperature during September nights is registered at a warm 23.5°C (74.3°F).Heat index
The average heat index in September is calculated to be a blistering 43°C (109.4°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Concepcion de Oriente, during September, the rain falls for 28.3 days and regularly aggregates up to 148mm (5.83") of precipitation. Throughout the year, there are 201.6 rainfall days, and 974mm (38.35") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 12min.On the first day of September, sunrise is at 05:39 and sunset at 18:01. On the last day of the month, sunrise is at 05:40 and sunset at 17:40 CST.
Sunshine
In September, the average sunshine is 9.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, an average UV index of 7 transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September in Concepcion de Oriente?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the month with the lowest UV index in Concepcion de Oriente?
How high is the UV index in September?
Average temperature in September
Concepcion de Oriente, El Salvador
- Average high temperature in September: 31.8°C
The warmest month (with the highest average high temperature) is April (34.4°C).
The month with the lowest average high temperature is October (30.6°C).
- Average low temperature in September: 23.5°C
The month with the highest average low temperature is April (25.8°C).
The coldest months (with the lowest average low temperature) are January and December (21.8°C).
Average pressure in September
Concepcion de Oriente, El Salvador
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1013.3mbar).
The month with the lowest atmospheric pressure is October (1011.2mbar).
Average wind speed in September
Concepcion de Oriente, El Salvador
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is January (9.8km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).
Average humidity in September
Concepcion de Oriente, El Salvador
- Average humidity in September: 78%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is March (56%).
Average rainfall in September
Concepcion de Oriente, El Salvador
- Average rainfall in September: 148mm
The wettest month (with the highest rainfall) is October (192mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Concepcion de Oriente, El Salvador
- Average rainfall days in September: 28.3 days
The month with the highest number of rainy days is September (28.3 days).
The month with the least rainy days is January (1.8 days).
Average daylight in September /
Average sunshine in September
Concepcion de Oriente, 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 2min
The month with the most sunshine is April (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 7h and 42min).
Average sunshine days in September
Concepcion de Oriente, El Salvador
- Average sunshine days in September: 0.6 days
The month with the most sunshine days is January (28.6 days).
The month with the least sunshine days is September (0.6 days).
Average UV index in September
Concepcion de Oriente, El Salvador
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Concepcion de Oriente, El Salvador
- Average cloud cover in September: 35
The month with the most cloud cover is October (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in September
Concepcion de Oriente, El Salvador
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).
