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
September denotes a minimal variation in the average high-temperature to a warm 29.2°C (84.6°F) from August's 30°C (86°F). Throughout September, the average low-temperature records at an agreeable 22.1°C (71.8°F).Heat index
Throughout September, the heat index is computed to be a very hot 36°C (96.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
September and October, with an average relative humidity of 81%, are the most humid months in Caluco, El Salvador.Rainfall
In Caluco, in September, it is raining for 24 days, with typically 113mm (4.45") of accumulated precipitation. Throughout the year, in Caluco, there are 166.9 rainfall days, and 832mm (32.76") of precipitation is accumulated.Daylight
In Caluco, El Salvador, the average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 05:47 and sunset at 18:09. On the last day of the month, sunrise is at 05:48 and sunset at 17:48 CST.
Sunshine
In Caluco, the average sunshine in September is 9.6h.UV index
The months with the lowest UV index in Caluco are June, August through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Caluco in September?
What are the most humid months in Caluco?
What is the average humidity in September in Caluco?
How many days does it rain in September in Caluco?
What is the average length of the day in September in Caluco?
When is the sunrise / sunset in September in Caluco?
How long on average sun shines in September in Caluco?
What are the months with the lowest UV index in Caluco?
What is the UV index intensity in September in Caluco?
Average temperature in September
Caluco, El Salvador
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (28.6°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is January (20.5°C).
Average pressure in September
Caluco, El Salvador
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is October (1011.3mbar).
Average wind speed in September
Caluco, El Salvador
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is June (6.1km/h).
Average humidity in September
Caluco, El Salvador
- Average humidity in September: 81%
The months with the highest relative humidity are September and October (81%).
The month with the lowest relative humidity is March (64%).
Average rainfall in September
Caluco, El Salvador
- Average rainfall in September: 113mm
The wettest month (with the highest rainfall) is October (161mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Caluco, El Salvador
- Average rainfall days in September: 24 days
The month with the highest number of rainy days is September (24 days).
The month with the least rainy days is December (1.7 days).
Average daylight in September /
Average sunshine in September
Caluco, 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 4min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
Caluco, El Salvador
- Average sunshine days in September: 4.4 days
The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (4.4 days).
Average UV index in September
Caluco, El Salvador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May and July (UV index 7).
The months with the lowest UV index are June, August, September, October, November and December (UV index 6).
Average cloud cover in September
Caluco, El Salvador
- Average cloud cover in September: 37
The months with the most cloud cover are June and September (Cloud cover 37).
The months with the least cloud cover are January and December (Cloud cover 12).
Average visibility in September
Caluco, El Salvador
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, November and December (10km).
The month with the lowest visibility is October (9km).
