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
On the advent of September, Osicala's average high-temperature exhibits a minor adjustment to a still hot 31.7°C (89.1°F) from August's 33°C (91.4°F). Osicala's nighttime temperature in September drops to an average of 22.1°C (71.8°F).Heat index
The heat index for September is appraised at a scorching 44°C (111.2°F). Stay mindful: Heat exhaustion and heat cramps are likely. Heatstroke could follow extended physical effort.Given the heat index, its values are aligned with shaded sites and gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in September in Osicala, El Salvador, is 81%.Rainfall
In Osicala, in September, during 25.8 rainfall days, 122mm (4.8") of precipitation is typically accumulated. In Osicala, during the entire year, the rain falls for 188.2 days and collects up to 954mm (37.56") of precipitation.Daylight
In September, the average length of the day is 12h and 12min.On the first day of September, sunrise is at 05:41 and sunset at 18:03. On the last day of the month, sunrise is at 05:41 and sunset at 17:42 CST.
Sunshine
In Osicala, the average sunshine in September is 8.8h.UV index
September and October, 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 risk from exposure to the Sun's UV rays for the average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Osicala have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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
Osicala, 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).
