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 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
San Francisco Tetlanohcan commences September with an average high-temperature of a comfortable 18.8°C (65.8°F), maintaining a close resemblance to the previous month. During the month of September, San Francisco Tetlanohcan's nighttime temperature lowers to an average of 9.7°C (49.5°F).Humidity
September is the most humid month in San Francisco Tetlanohcan, with an average relative humidity of 84%.Rainfall
In San Francisco Tetlanohcan, during September, the rain falls for 27.6 days and regularly aggregates up to 143mm (5.63") of precipitation. In San Francisco Tetlanohcan, Mexico, during the entire year, the rain falls for 207.4 days and collects up to 906mm (35.67") of precipitation.Snowfall
February through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 6:17 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 6:21 pm CST.
Sunshine
In San Francisco Tetlanohcan, 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 reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Francisco Tetlanohcan in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
San Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 3min
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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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 Francisco Tetlanohcan, 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).
