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
Temperature readings reach their annual highs in September, averaging 28.5°C (83.3°F) and a minimum average of 19.3°C (66.7°F).Heat index
The average heat index in September is calculated to be a tropical 33°C (91.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The most humid month is September, with an average relative humidity of 80%.Rainfall
In San Francisco Zapotitlán, in September, it is raining for 27.8 days, with typically 257mm (10.12") of accumulated precipitation. In San Francisco Zapotitlán, during the entire year, the rain falls for 223.1 days and collects up to 1539mm (60.59") of precipitation.Daylight
In San Francisco Zapotitlán, the average length of the day in September is 12h and 13min.On the first day of September in San Francisco Zapotitlán, sunrise is at 05:54 and sunset at 18:17. On the last day of the month, sunrise is at 05:55 and sunset at 17:56 CST.
Sunshine
In San Francisco Zapotitlán, the average sunshine in September is 10.1h.UV index
January through December, with an average maximum UV index of 6, are months with the highest UV index in San Francisco Zapotitlán. January 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 unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in San Francisco Zapotitlán?
How hot is it in San Francisco Zapotitlán in September?
What is the most humid month in San Francisco Zapotitlán?
What is the average humidity in September in San Francisco Zapotitlán?
How many days does it rain in September in San Francisco Zapotitlán?
How many hours of daylight does San Francisco Zapotitlán have in September?
When is the sunrise / sunset in September in San Francisco Zapotitlán?
How long on average sun shines in September in San Francisco Zapotitlán?
What are the months with the highest UV index in San Francisco Zapotitlán?
What are the months with the lowest UV index in San Francisco Zapotitlán?
What is the UV index reading in September in San Francisco Zapotitlán?
Average temperature in September
San Francisco Zapotitlán, Guatemala
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is September (28.5°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is May (20.5°C).
The coldest month (with the lowest average low temperature) is December (17.6°C).
Average pressure in September
San Francisco Zapotitlán, Guatemala
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in September
San Francisco Zapotitlán, Guatemala
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is March (6.6km/h).
The calmest month (with the lowest average wind speed) is May (5.1km/h).
Average humidity in September
San Francisco Zapotitlán, Guatemala
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The months with the lowest relative humidity are January, February and March (59%).
Average rainfall in September
San Francisco Zapotitlán, Guatemala
- Average rainfall in September: 257mm
The wettest month (with the highest rainfall) is May (274mm).
The driest months (with the least rainfall) are January and February (7mm).
Average rainfall days in September
San Francisco Zapotitlán, Guatemala
- Average rainfall days in September: 27.8 days
The month with the highest number of rainy days is September (27.8 days).
The month with the least rainy days is January (4.8 days).
Average daylight in September /
Average sunshine in September
San Francisco Zapotitlán, Guatemala
- 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: 10h and 1min
The months with the most sunshine are April and July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in September
San Francisco Zapotitlán, Guatemala
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is September (1.3 days).
Average UV index in September
San Francisco Zapotitlán, Guatemala
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
San Francisco Zapotitlán, Guatemala
- Average cloud cover in September: 39
The month with the most cloud cover is September (Cloud cover 39).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in September
San Francisco Zapotitlán, Guatemala
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
