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 snowfall in September
- Average snowfall 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
The dawn of September sees an average high-temperature of a still tropical 31.3°C (88.3°F), subtly contrasting with August's 32.3°C (90.1°F). Guacotecti usually reports an average low-temperature of 19.8°C (67.6°F) during the month of September.Heat index
For September, the heat index is computed to be an extremely hot 42°C (107.6°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Guacotecti, the average relative humidity in September is 81%.Rainfall
In Guacotecti, El Salvador, in September, during 25.7 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Guacotecti, during the entire year, the rain falls for 188.1 days and collects up to 832mm (32.76") of precipitation.Snowfall
September is the only month when snow falls. September is the month with the most snowfall. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.Daylight
The average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 05:42 and sunset at 18:05. On the last day of September, sunrise is at 05:43 and sunset at 17:44 CST.
Sunshine
In Guacotecti, the average sunshine in September is 8.7h.UV index
The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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 many days does it rain in September?
What is the snowiest month?
When does it start snowing in Guacotecti?
What is the average length of the day in September?
When is the sunrise / sunset in September in Guacotecti?
How long on average sun shines in September?
What are the months with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Guacotecti, El Salvador
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is April (35°C).
The month with the lowest average high temperature is October (29.9°C).
- Average low temperature in September: 19.8°C
The month with the highest average low temperature is May (21.9°C).
The coldest month (with the lowest average low temperature) is December (17.8°C).
Average pressure in September
Guacotecti, El Salvador
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1014mbar).
The months with the lowest atmospheric pressure are May and October (1011.6mbar).
Average wind speed in September
Guacotecti, El Salvador
- Average wind speed in September: 3.8km/h
The windiest month (with the highest average wind speed) is January (7.3km/h).
The calmest months (with the lowest average wind speed) are June and September (3.8km/h).
Average humidity in September
Guacotecti, El Salvador
- Average humidity in September: 81%
The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (56%).
Average rainfall in September
Guacotecti, El Salvador
- Average rainfall in September: 130mm
The wettest month (with the highest rainfall) is May (150mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Guacotecti, El Salvador
- Average rainfall days in September: 25.7 days
The month with the highest number of rainy days is September (25.7 days).
The month with the least rainy days is January (1.6 days).
Average snowfall in September
Guacotecti, El Salvador
- Average snowfall in September: 1mm
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Guacotecti, El Salvador
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Guacotecti, 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 4min
The month with the most sunshine is April (Average sunshine: 11h and 36min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
Guacotecti, El Salvador
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is January (29.1 days).
The month with the least sunshine days is September (3.6 days).
Average UV index in September
Guacotecti, El Salvador
- Average UV index in September: 6
The months with the highest UV index are February, March, April and July (UV index 7).
The months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).
Average cloud cover in September
Guacotecti, El Salvador
- Average cloud cover in September: 47
The month with the most cloud cover is September (Cloud cover 47).
The months with the least cloud cover are January and December (Cloud cover 13).
Average visibility in September
Guacotecti, 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).
