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
September's onset records a minor alteration in the average high-temperature to a still hot 30.9°C (87.6°F) from August's 31.8°C (89.2°F). Throughout September, a steady low-temperature average of 20.5°C (68.9°F) is noted.Heat index
In September, the average heat index is appraised at a scorching 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In September, the average relative humidity in San Francisco Morazán is 82%.Rainfall
In San Francisco Morazán, during September, the rain falls for 27.5 days and regularly aggregates up to 134mm (5.28") of precipitation. In San Francisco Morazán, during the entire year, the rain falls for 192.2 days and collects up to 1062mm (41.81") of precipitation.Daylight
In San Francisco Morazán, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 05:44 and sunset at 18:07. On the last day of the month, sunrise is at 05:45 and sunset at 17:46 CST.
Sunshine
In San Francisco Morazán, the average sunshine in September is 8.8h.UV index
January, June through December, 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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
Is it hot in San Francisco Morazán during September?
What is the average humidity in September in San Francisco Morazán?
How much does it rain in San Francisco Morazán in September?
How many hours of daylight does San Francisco Morazán have in September?
When are sunrise and sunset in September in San Francisco Morazán?
How long on average sun shines in September in San Francisco Morazán?
What are the months with the lowest UV index in San Francisco Morazán?
What is the UV index intensity in September in San Francisco Morazán?
Average temperature in September
San Francisco Morazán, El Salvador
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is March (34.1°C).
The month with the lowest average high temperature is October (29.6°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is April (22.3°C).
The coldest month (with the lowest average low temperature) is December (18.6°C).
Average pressure in September
San Francisco Morazán, El Salvador
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1013.7mbar).
The months with the lowest atmospheric pressure are May and October (1011.4mbar).
Average wind speed in September
San Francisco Morazán, El Salvador
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity in September
San Francisco Morazán, El Salvador
- Average humidity in September: 82%
The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is March (59%).
Average rainfall in September
San Francisco Morazán, El Salvador
- Average rainfall in September: 134mm
The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
San Francisco Morazán, El Salvador
- Average rainfall days in September: 27.5 days
The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (1.5 days).
Average daylight in September /
Average sunshine in September
San Francisco Morazán, El Salvador
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 0min).
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 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
San Francisco Morazán, El Salvador
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is September (1.3 days).
Average UV index in September
San Francisco Morazán, El Salvador
- Average UV index in September: 6
The months with the highest UV index are February, March, April and May (UV index 7).
The months with the lowest UV index are January, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
San Francisco Morazán, El Salvador
- Average cloud cover in September: 44
The month with the most cloud cover is September (Cloud cover 44).
The months with the least cloud cover are January and December (Cloud cover 14).
Average visibility in September
San Francisco Morazán, El Salvador
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (7km).
San Francisco Morazán, El Salvador
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