September weather forecastAcatlán, Mexico
September
Weather in September
September, the first month of the autumn in Acatlán, is also an agreeable month, with an average temperature varying between 21.5°C (70.7°F) and 13.8°C (56.8°F).Temperature
Acatlán's September average high-temperature settles at a still pleasant 21.5°C (70.7°F), showing a near match with the preceding month. In the month of September, Acatlán witnesses a consistent average low-temperature of 13.8°C (56.8°F).Humidity
September is the most humid month, 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, Mexico, during the entire year, the rain falls for 238 days and collects up to 975mm (38.39") of precipitation.Snowfall
In Acatlán, snow does not fall in January through October and December.Daylight
The average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 6:18 am and sunset at 6:48 pm. On the last day of September, sunrise is at 6:24 am and sunset at 6:22 pm CST.
Sunshine
In Acatlán, the average sunshine in September 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 of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 12min
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 48min
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).
