September weather forecastSan Bartolomé Tenango, Mexico
September
Weather in September
September, the first month of the autumn in San Bartolomé Tenango, is still a comfortable month, with temperature in the range of an average high of 18.8°C (65.8°F) and an average low of 9.7°C (49.5°F).Temperature
With the advent of September, San Bartolomé Tenango experiences an average high-temperature of a refreshing 18.8°C (65.8°F), mirroring a close resemblance to the previous month. San Bartolomé Tenango records an average nighttime low of 9.7°C (49.5°F) in September.Humidity
The most humid month in San Bartolomé Tenango is September, with an average relative humidity of 84%.Rainfall
In San Bartolomé Tenango, in September, during 27.6 rainfall days, 143mm (5.63") of precipitation is typically accumulated. In San Bartolomé Tenango, Mexico, during the entire year, the rain falls for 207.4 days and collects up to 906mm (35.67") of precipitation.Snowfall
In San Bartolomé Tenango, snow does not fall in February through October and December.Daylight
The average length of the day in September in San Bartolomé Tenango 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, in San Bartolomé Tenango, Mexico, sunrise is at 6:23 am and sunset at 6:22 pm CST.
Sunshine
In San Bartolomé Tenango, the average sunshine in September is 8.5h.UV index
The months with the lowest UV index are January, February, May 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: A maximum high UV index of 4 in September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. 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
San Bartolomé Tenango, Mexico
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is April (23.3°C).
The month with the lowest average high temperature is January (17.5°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is May (11.7°C).
The coldest month (with the lowest average low temperature) is January (5.5°C).
Average pressure in September
San Bartolomé Tenango, Mexico
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is May (1014.2mbar).
Average wind speed in September
San Bartolomé Tenango, Mexico
- Average wind speed in September: 6.8km/h
The windiest months (with the highest average wind speed) are February and March (8.6km/h).
The calmest month (with the lowest average wind speed) is July (6.5km/h).
Average humidity in September
San Bartolomé Tenango, Mexico
- Average humidity in September: 84%
The month with the highest relative humidity is September (84%).
The month with the lowest relative humidity is April (51%).
Average rainfall in September
San Bartolomé Tenango, Mexico
- Average rainfall in September: 143mm
The wettest month (with the highest rainfall) is July (155mm).
The driest month (with the least rainfall) is December (6mm).
Average rainfall days in September
San Bartolomé Tenango, Mexico
- Average rainfall days in September: 27.6 days
The month with the highest number of rainy days is September (27.6 days).
The month with the least rainy days is December (4.7 days).
Average snowfall days in September
San Bartolomé Tenango, Mexico
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and November (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
San Bartolomé Tenango, 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: 8h and 30min
The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in September
San Bartolomé Tenango, Mexico
- Average sunshine days in September: 1.8 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is September (1.8 days).
Average UV index in September
San Bartolomé Tenango, Mexico
- Average UV index in September: 4
The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 4).
Average cloud cover in September
San Bartolomé Tenango, Mexico
- Average cloud cover in September: 46
The month with the most cloud cover is September (Cloud cover 46).
The months with the least cloud cover are February and December (Cloud cover 13).
Average visibility in September
San Bartolomé Tenango, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are July, August and September (8km).





