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
The advent of September denotes an average high-temperature of a still hot 30.3°C (86.5°F), subtly different from August's 31°C (87.8°F). September introduces a small decrease to a nighttime average of 26.7°C (80.1°F).Heat index
Throughout September, the heat index is evaluated at a torrid 38°C (100.4°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The months with the highest humidity are June and September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 22.1 days. Throughout September, 105mm (4.13") of precipitation is accumulated. Throughout the year, there are 225.3 rainfall days, and 900mm (35.43") of precipitation is accumulated.Daylight
In Chunyaxché, the average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:05 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:39 pm EST.
Sunshine
The average sunshine in September is 8.9h.UV index
March through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month in Chunyaxché?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Chunyaxché have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Chunyaxché have in September?
When is the highest UV index?
How high is the UV index in September?
Average temperature in September
Chunyaxché, Mexico
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (26°C).
- Average low temperature in September: 26.7°C
The month with the highest average low temperature is August (27°C).
The coldest month (with the lowest average low temperature) is January (22.1°C).
Average pressure in September
Chunyaxché, Mexico
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is September (1012.4mbar).
Average wind speed in September
Chunyaxché, Mexico
- Average wind speed in September: 13.1km/h
The windiest month (with the highest average wind speed) is March (18.8km/h).
The calmest months (with the lowest average wind speed) are July and September (13.1km/h).
Average humidity in September
Chunyaxché, Mexico
- Average humidity in September: 78%
The months with the highest relative humidity are June and September (78%).
The month with the lowest relative humidity is March (73%).
Average rainfall in September
Chunyaxché, Mexico
- Average rainfall in September: 105mm
The wettest month (with the highest rainfall) is October (137mm).
The driest month (with the least rainfall) is March (26mm).
Average rainfall days in September
Chunyaxché, Mexico
- Average rainfall days in September: 22.1 days
The month with the highest number of rainy days is October (23.3 days).
The month with the least rainy days is April (12.3 days).
Average daylight in September /
Average sunshine in September
Chunyaxché, Mexico
- Average daylight in September: 12h and 1min
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: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 7h and 42min).
Average sunshine days in September
Chunyaxché, Mexico
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is December (4.6 days).
Average UV index in September
Chunyaxché, Mexico
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Chunyaxché, Mexico
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Chunyaxché, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
