September weather forecast
San Salvador Tepexco, Mexico

September

Weather in September

The first month of the autumn, September, is still a pleasant month in San Salvador Tepexco, Mexico, with an average temperature fluctuating between 11.1°C (52°F) and 20.2°C (68.4°F).

Temperature

September's weather records an average high-temperature of a still pleasant 20.2°C (68.4°F), showing little deviation from August. Throughout September, San Salvador Tepexco witnesses a consistent average low-temperature of 11.1°C (52°F).

Humidity

With an average relative humidity of 82%, September is the most humid month.

Rainfall

In San Salvador Tepexco, during September, the rain falls for 26.8 days and regularly aggregates up to 173mm (6.81") of precipitation. Throughout the year, there are 210.9 rainfall days, and 1187mm (46.73") of precipitation is accumulated.

Daylight

In San Salvador Tepexco, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:17 am and sunset at 6:47 pm. On the last day of September, sunrise is at 6:23 am and sunset at 6:21 pm CST.

Sunshine

In San Salvador Tepexco, Mexico, the average sunshine in September is 8.7h.

UV index

January, June, August through December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What are the temperatures in September?
The high-temperature, in September, in San Salvador Tepexco, is 20.2°C (68.4°F), while the low-temperature averages to 11.1°C (52°F).
What is the most humid month?
September is the most humid month in San Salvador Tepexco, with an average relative humidity of 82%.
What is the average humidity in September in San Salvador Tepexco?
In San Salvador Tepexco, the average relative humidity in September is 82%.
How many days does it rain in September?
In September, the rain falls for 26.8 days. Throughout September, 173mm (6.81") of precipitation is accumulated.
How many hours of daylight does San Salvador Tepexco have in September?
In San Salvador Tepexco, the average day length in September is 12h and 14min.
When is the sunrise / sunset in September?
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.
How many hours of sunshine does San Salvador Tepexco have in September?
In San Salvador Tepexco, the average sunshine duration in September is 8.7h.
What are the months with the lowest UV index?
The months with the lowest UV index are January, June, August through December, with an average maximum UV index of 4.
What is the UV index reading in September?
In San Salvador Tepexco, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
San Salvador Tepexco, Mexico
  • Average high temperature in September: 20.2°C

The warmest month (with the highest average high temperature) is April (24.3°C).
The month with the lowest average high temperature is January (19°C).

  • Average low temperature in September: 11.1°C

The month with the highest average low temperature is May (13.2°C).
The coldest month (with the lowest average low temperature) is January (7.1°C).

Average pressure in September
San Salvador Tepexco, Mexico
  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is January (1018.7mbar).
The month with the lowest atmospheric pressure is May (1014.3mbar).

Average wind speed in September
San Salvador Tepexco, Mexico
  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is March (9.9km/h).
The calmest months (with the lowest average wind speed) are June, July and September (7.2km/h).

Average humidity in September
San Salvador Tepexco, Mexico
  • Average humidity in September: 82%

The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is April (50%).

Average rainfall in September
San Salvador Tepexco, Mexico
  • Average rainfall in September: 173mm

The wettest month (with the highest rainfall) is July (202mm).
The driest month (with the least rainfall) is December (6mm).

Average rainfall days in September
San Salvador Tepexco, Mexico
  • Average rainfall days in September: 26.8 days

The month with the highest number of rainy days is August (29.2 days).
The month with the least rainy days is December (4.5 days).

Average daylight in September /
Average sunshine in September
San Salvador Tepexco, 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 4min

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).

Average sunshine days in September
San Salvador Tepexco, Mexico
  • Average sunshine days in September: 2.6 days

The month with the most sunshine days is December (23.8 days).
The month with the least sunshine days is July (0.8 days).

Average UV index in September
San Salvador Tepexco, Mexico
  • Average UV index in September: 4

The months with the highest UV index are February, March, April, May and July (UV index 5).
The months with the lowest UV index are January, June, August, September, October, November and December (UV index 4).

Average cloud cover in September
San Salvador Tepexco, Mexico
  • Average cloud cover in September: 42

The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is December (Cloud cover 11).

Average visibility in September
San Salvador Tepexco, Mexico
  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).

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