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
The average high-temperature for September is a still hot 30.9°C (87.6°F), closely aligning with the temperature of the preceding month. The nighttime temperature dips to a moderately hot 23.5°C (74.3°F) on average during September.Heat index
September's heat index is appraised at a scorching 40°C (104°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Know that the heat index computations account for shaded terrains and slight winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In September, the average relative humidity in El Salvador is 79%.Rainfall
The wettest months are May and September, with an average 95mm (3.74") of rainfall.Daylight
In El Salvador, Cuba, the average length of the day in September is 12h and 15min.On the first day of September in El Salvador, Cuba, sunrise is at 06:45 and sunset at 19:16. On the last day of the month, sunrise is at 06:51 and sunset at 18:49 CDT.
Sunshine
In El Salvador, the average sunshine in September is 10.7h.UV index
The months with the highest UV index in El Salvador are April through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 7 during September leads to these instructions:
Fend off overexposure. Sun protection is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
How hot is September in El Salvador?
What is the average humidity in September in El Salvador?
What is the wettest month in El Salvador?
How many days does it rain in September in El Salvador?
How many hours of daylight does El Salvador have in September?
When are sunrise and sunset in September in El Salvador?
How long on average sun shines in September in El Salvador?
What is the month with the highest UV index in El Salvador?
What is the UV index intensity in September in El Salvador?
Average temperature in September
El Salvador, Cuba
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in September: 23.5°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is February (20°C).
Average pressure in September
El Salvador, Cuba
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is January (1016.5mbar).
The month with the lowest atmospheric pressure is October (1012mbar).
Average wind speed in September
El Salvador, Cuba
- Average wind speed in September: 7.4km/h
The windiest months (with the highest average wind speed) are February and December (9.8km/h).
The calmest months (with the lowest average wind speed) are September and October (7.4km/h).
Average humidity in September
El Salvador, Cuba
- Average humidity in September: 79%
The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (75%).
Average rainfall in September
El Salvador, Cuba
- Average rainfall in September: 95mm
The wettest months (with the highest rainfall) are May and September (95mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in September
El Salvador, Cuba
- Average rainfall days in September: 21.7 days
The month with the highest number of rainy days is October (23.9 days).
The month with the least rainy days is February (9 days).
Average daylight in September /
Average sunshine in September
El Salvador, Cuba
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in September
El Salvador, Cuba
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is December (14 days).
The month with the least sunshine days is May (4.6 days).
Average UV index in September
El Salvador, Cuba
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in September
El Salvador, Cuba
- Average cloud cover in September: 23
The months with the most cloud cover are May and October (Cloud cover 28).
The months with the least cloud cover are February and August (Cloud cover 21).
Average visibility in September
El Salvador, Cuba
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (10km).
The months with the lowest visibility are May and October (9km).
El Salvador, Cuba
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