September weather forecastApan, Mexico
September
Weather in September
September, the first month of the autumn in Apan, is still a refreshing month, with an average temperature ranging between max 18.2°C (64.8°F) and min 10.7°C (51.3°F).Temperature
With the onset of September, the average high-temperature stands at a still refreshing 18.2°C (64.8°F), closely aligned with August's 19.7°C (67.5°F). Apan, during September nights, observes an average temperature of 10.7°C (51.3°F).Humidity
With an average relative humidity of 90%, September is the most humid month.Rainfall
In September, the rain falls for 24.8 days. Throughout September, 123mm (4.84") of precipitation is accumulated. Throughout the year, in Apan, there are 243 rainfall days, and 1001mm (39.41") of precipitation is accumulated.Snowfall
February, April through October and December are months without snowfall in Apan, Mexico.Daylight
In Apan, Mexico, 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 6:48 pm. On the last day of September, in Apan, sunrise is at 6:24 am and sunset at 6:22 pm CST.
Sunshine
September has the least sunshine of the year in Apan, with an average of 6.2h of sunshine.UV index
The months with the lowest UV index in Apan are January, February, June through December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Act with care - The need to guard against sun damage is communicated. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Apan, Mexico
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is April (22.9°C).
The month with the lowest average high temperature is January (16.5°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is May (11.4°C).
The coldest month (with the lowest average low temperature) is January (5.9°C).
Average pressure in September
Apan, Mexico
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is January (1019.2mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).
Average wind speed in September
Apan, Mexico
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is March (8.6km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in September
Apan, Mexico
- Average humidity in September: 90%
The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is April (63%).
Average rainfall in September
Apan, Mexico
- Average rainfall in September: 123mm
The wettest month (with the highest rainfall) is June (164mm).
The driest month (with the least rainfall) is December (17mm).
Average rainfall days in September
Apan, Mexico
- Average rainfall days in September: 24.8 days
The month with the highest number of rainy days is June (26.1 days).
The month with the least rainy days is January (12.8 days).
Average snowfall in September
Apan, Mexico
- Average snowfall in September: 0mm
The month with the highest snowfall is November (9mm).
The months with the least snowfall are February, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Apan, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Apan, 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: 11h and 0min).
- Average sunshine in September: 6h and 12min
The month with the most sunshine is May (Average sunshine: 10h and 0min).
The month with the least sunshine is September (Average sunshine: 6h and 12min).
Average sunshine days in September
Apan, Mexico
- Average sunshine days in September: 4 days
The month with the most sunshine days is January (13.7 days).
The month with the least sunshine days is June (2.4 days).
Average UV index in September
Apan, Mexico
- Average UV index in September: 4
The months with the highest UV index are March, April and May (UV index 5).
The months with the lowest UV index are January, February, June, July, August, September, October, November and December (UV index 4).
Average cloud cover in September
Apan, Mexico
- Average cloud cover in September: 68
The month with the most cloud cover is September (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 27).
Average visibility in September
Apan, Mexico
- Average visibility in September: 6km
The months with the highest visibility are January, February, March, April and May (9km).
The months with the lowest visibility are July, August, September and October (6km).
