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's onset records an average high-temperature of a still agreeable 20.2°C (68.4°F), a near match to August's 21.3°C (70.3°F). During the month of September, the temperature falls to an average of 11.1°C (52°F).Humidity
The most humid month is September, with an average relative humidity of 82%.Rainfall
In September, in Castillotla, Mexico, the rain falls for 26.8 days. Throughout September, 173mm (6.81") of precipitation is accumulated. In Castillotla, during the entire year, the rain falls for 210.9 days and collects up to 1187mm (46.73") of precipitation.Daylight
In Castillotla, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 6:18 am and sunset at 6:47 pm. On the last day of September, sunrise is at 6:23 am and sunset at 6:21 pm CST.
Sunshine
In September, the average sunshine is 8.7h.UV index
The months with the lowest UV index are January, June, August through December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. It's recommended to limit sun exposure when its radiation is at its peak during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Castillotla in September?
What is the most humid month in Castillotla?
What is the average humidity in September in Castillotla?
How much does it rain in Castillotla in September?
What is the average length of the day in September in Castillotla?
When are sunrise and sunset in September in Castillotla?
How many hours of sunshine does Castillotla have in September?
When is the lowest UV index in Castillotla?
How high is the UV index in September in Castillotla?
Average temperature in September
Castillotla, Mexico
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is April (24.3°C).
The month with the lowest average high temperature is January (19°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is May (13.2°C).
The coldest month (with the lowest average low temperature) is January (7.1°C).
Average pressure in September
Castillotla, Mexico
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is January (1018.7mbar).
The month with the lowest atmospheric pressure is May (1014.3mbar).
Average wind speed in September
Castillotla, Mexico
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is March (9.9km/h).
The calmest months (with the lowest average wind speed) are June, July and September (7.2km/h).
Average humidity in September
Castillotla, Mexico
- Average humidity in September: 82%
The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is April (50%).
Average rainfall in September
Castillotla, Mexico
- Average rainfall in September: 173mm
The wettest month (with the highest rainfall) is July (202mm).
The driest month (with the least rainfall) is December (6mm).
Average rainfall days in September
Castillotla, Mexico
- Average rainfall days in September: 26.8 days
The month with the highest number of rainy days is August (29.2 days).
The month with the least rainy days is December (4.5 days).
Average daylight in September /
Average sunshine in September
Castillotla, 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: 8h and 4min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).
Average sunshine days in September
Castillotla, Mexico
- Average sunshine days in September: 2.6 days
The month with the most sunshine days is December (23.8 days).
The month with the least sunshine days is July (0.8 days).
Average UV index in September
Castillotla, Mexico
- Average UV index in September: 4
The months with the highest UV index are February, March, April, May and July (UV index 5).
The months with the lowest UV index are January, June, August, September, October, November and December (UV index 4).
Average cloud cover in September
Castillotla, Mexico
- Average cloud cover in September: 42
The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is December (Cloud cover 11).
Average visibility in September
Castillotla, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
