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
Entering September, Santo Tomás Chiconautla's average high-temperature reads a still pleasant 20.8°C (69.4°F), indicating a close resemblance to the previous month's climate. In Santo Tomás Chiconautla, September's nights observe an average temperature dip to a cool 11.2°C (52.2°F).Humidity
September is the most humid month, with an average relative humidity of 77%.Rainfall
In September, the rain falls for 25.5 days. Throughout September, 105mm (4.13") of precipitation is accumulated. Throughout the year, there are 172.3 rainfall days, and 662mm (26.06") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 14min.On the first day of September, sunrise is at 6:20 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 6:24 pm CST.
Sunshine
In September, the average sunshine is 9.1h.UV index
The months with the lowest UV index are January, June, September through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the most humid month?
What is the average humidity in September in Santo Tomás Chiconautla?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Santo Tomás Chiconautla have in September?
When is the lowest UV index?
How high is the UV index in September?
Average temperature in September
Santo Tomás Chiconautla, Mexico
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is April (25.6°C).
The month with the lowest average high temperature is January (18.9°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is May (13.3°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).
Average pressure in September
Santo Tomás Chiconautla, Mexico
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is January (1018.5mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).
Average wind speed in September
Santo Tomás Chiconautla, Mexico
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is March (7.8km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).
Average humidity in September
Santo Tomás Chiconautla, Mexico
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (42%).
Average rainfall in September
Santo Tomás Chiconautla, Mexico
- Average rainfall in September: 105mm
The wettest months (with the highest rainfall) are July and August (136mm).
The driest month (with the least rainfall) is December (4mm).
Average rainfall days in September
Santo Tomás Chiconautla, Mexico
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is July (27.5 days).
The month with the least rainy days is December (3.5 days).
Average daylight in September /
Average sunshine in September
Santo Tomás Chiconautla, 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: 11h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).
Average sunshine days in September
Santo Tomás Chiconautla, Mexico
- Average sunshine days in September: 3 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is July (2.3 days).
Average UV index in September
Santo Tomás Chiconautla, Mexico
- Average UV index in September: 4
The months with the highest UV index are February, March, April, May, July and August (UV index 5).
The months with the lowest UV index are January, June, September, October, November and December (UV index 4).
Average cloud cover in September
Santo Tomás Chiconautla, Mexico
- Average cloud cover in September: 39
The month with the most cloud cover is September (Cloud cover 39).
The months with the least cloud cover are February, March and December (Cloud cover 11).
Average visibility in September
Santo Tomás Chiconautla, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May and December (10km).
The months with the lowest visibility are July, August and September (8km).
