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
Weather in September
Temperature
The ushering in of September brings an average high-temperature of a still pleasant 21.5°C (70.7°F), closely mirroring the 22.7°C (72.9°F) of August. During September, the temperature in Acatlán tends to dip to an average of 13.8°C (56.8°F) at night.Humidity
The most humid month in Acatlán is September, with an average relative humidity of 88%.Rainfall
In Acatlán, Mexico, during September, the rain falls for 25.5 days and regularly aggregates up to 131mm (5.16") of precipitation. In Acatlán, during the entire year, the rain falls for 238 days and collects up to 975mm (38.39") of precipitation.Snowfall
January through October and December are months without snowfall in Acatlán.Daylight
The average length of the day in September in Acatlán, Mexico, is 12h and 15min.On the first day of September in Acatlán, sunrise is at 6:18 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 6:22 pm CST.
Sunshine
In September, the average sunshine is 6.8h.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. When the Sun is at its strongest around midday, find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are September temperatures in Acatlán?
What is the most humid month in Acatlán?
What is the average humidity in September in Acatlán?
How much does it rain in Acatlán in September?
When it does not snow in Acatlán?
How many hours of daylight does Acatlán have in September?
When are sunrise and sunset in September in Acatlán?
How many hours of sunshine does Acatlán have in September?
When is the highest UV index in Acatlán?
What is the UV index reading in September in Acatlán?
Average temperature in September
Acatlán, Mexico
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is April (24.7°C).
The month with the lowest average high temperature is January (17.7°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is June (13.9°C).
The coldest month (with the lowest average low temperature) is January (7.9°C).
Average pressure in September
Acatlán, Mexico
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.6mbar).
Average wind speed in September
Acatlán, Mexico
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is April (7.6km/h).
The calmest month (with the lowest average wind speed) is September (5.8km/h).
Average humidity in September
Acatlán, Mexico
- Average humidity in September: 88%
The month with the highest relative humidity is September (88%).
The month with the lowest relative humidity is April (69%).
Average rainfall in September
Acatlán, Mexico
- Average rainfall in September: 131mm
The wettest month (with the highest rainfall) is June (143mm).
The driest month (with the least rainfall) is December (23mm).
Average rainfall days in September
Acatlán, Mexico
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is December (14.2 days).
Average snowfall in September
Acatlán, Mexico
- Average snowfall in September: 0mm
The month with the highest snowfall is November (7mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Acatlán, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is November (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Acatlán, 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: 6h and 5min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Acatlán, Mexico
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is September (3.6 days).
Average UV index in September
Acatlán, Mexico
- Average UV index in September: 5
The months with the highest UV index are March, April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 4).
Average cloud cover in September
Acatlán, Mexico
- Average cloud cover in September: 58
The month with the most cloud cover is September (Cloud cover 58).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in September
Acatlán, Mexico
- Average visibility in September: 7km
The month with the highest visibility is April (9km).
The month with the lowest visibility is November (6km).
Acatlán, Mexico
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