September weather forecast
San Mateo Etlatongo, Mexico

September

Weather in September

The first month of the autumn, September, is also an agreeable month in San Mateo Etlatongo, Mexico, with an average temperature ranging between max 22.3°C (72.1°F) and min 13.2°C (55.8°F).

Temperature

At the onset of September, San Mateo Etlatongo records an average high-temperature of a pleasant 22.3°C (72.1°F), showing little deviation from the preceding month. In San Mateo Etlatongo, an average temperature of 13.2°C (55.8°F) is noted during September nights.

Humidity

The most humid month is September, with an average relative humidity of 81%.

Rainfall

In San Mateo Etlatongo, in September, it is raining for 26.6 days, with typically 145mm (5.71") of accumulated precipitation. In San Mateo Etlatongo, during the entire year, the rain falls for 185.5 days and collects up to 866mm (34.09") of precipitation.

Daylight

The average length of the day in September in San Mateo Etlatongo is 12h and 14min.
On the first day of the month, sunrise is at 6:15 am and sunset at 6:42 pm. On the last day of September, in San Mateo Etlatongo, sunrise is at 6:19 am and sunset at 6:18 pm CST.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index in San Mateo Etlatongo is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 during September translates into the following guidance:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

What is the temperature in September in San Mateo Etlatongo?
The high-temperature, in September, in San Mateo Etlatongo, is 22.3°C (72.1°F), while the low-temperature averages to 13.2°C (55.8°F). In April, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 28°C (82.4°F).
What is the most humid month in San Mateo Etlatongo?
September is the most humid month in San Mateo Etlatongo, with an average relative humidity of 81%.
What is the average humidity in September in San Mateo Etlatongo?
In San Mateo Etlatongo, the average relative humidity in September is 81%.
How much does it rain in San Mateo Etlatongo in September?
In September, in San Mateo Etlatongo, Mexico, the rain falls for 26.6 days. Throughout September, 145mm (5.71") of precipitation is accumulated.
What is the average length of the day in September in San Mateo Etlatongo?
The average day length in September in San Mateo Etlatongo is 12h and 14min.
When are sunrise and sunset in September in San Mateo Etlatongo?
On the first day of September in San Mateo Etlatongo, Mexico, sunrise is at 6:15 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 6:18 pm CST.
How many hours of sunshine does San Mateo Etlatongo have in September?
In San Mateo Etlatongo, Mexico, the average sunshine duration in September is 8.9h.
What is the UV index intensity in September in San Mateo Etlatongo?
In San Mateo Etlatongo, Mexico, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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 Mateo Etlatongo, Mexico
Average temperature in September
San Mateo Etlatongo, Mexico
  • Average high temperature in September: 22.3°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is January (21.1°C).

  • Average low temperature in September: 13.2°C

The month with the highest average low temperature is May (14.5°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).

Average pressure in September - San Mateo Etlatongo, Mexico
Average pressure in September
San Mateo Etlatongo, Mexico
  • Average pressure in September: 1014.8mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).

Average wind speed in September - San Mateo Etlatongo, Mexico
Average wind speed in September
San Mateo Etlatongo, Mexico
  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest months (with the lowest average wind speed) are June and September (6.7km/h).

Average humidity in September - San Mateo Etlatongo, Mexico
Average humidity in September
San Mateo Etlatongo, Mexico
  • Average humidity in September: 81%

The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is April (56%).

Average rainfall in September - San Mateo Etlatongo, Mexico
Average rainfall in September
San Mateo Etlatongo, Mexico
  • Average rainfall in September: 145mm

The wettest month (with the highest rainfall) is June (164mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in September - San Mateo Etlatongo, Mexico
Average rainfall days in September
San Mateo Etlatongo, Mexico
  • Average rainfall days in September: 26.6 days

The month with the highest number of rainy days is September (26.6 days).
The month with the least rainy days is December (4.5 days).

Average daylight in September / Average sunshine in September - San Mateo Etlatongo, Mexico
Average daylight in September /
Average sunshine in September
San Mateo Etlatongo, Mexico
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in September: 8h and 5min

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 36min).

Average sunshine days in September - San Mateo Etlatongo, Mexico
Average sunshine days in September
San Mateo Etlatongo, Mexico
  • Average sunshine days in September: 2 days

The month with the most sunshine days is December (22.2 days).
The months with the least sunshine days are August and September (2 days).

Average UV index in September - San Mateo Etlatongo, Mexico
Average UV index in September
San Mateo Etlatongo, Mexico
  • Average UV index in September: 5

The month with the highest UV index is April (UV index 6).
The months with the lowest UV index are January, June, October, November and December (UV index 4).

Average cloud cover in September - San Mateo Etlatongo, Mexico
Average cloud cover in September
San Mateo Etlatongo, Mexico
  • Average cloud cover in September: 42

The month with the most cloud cover is September (Cloud cover 42).
The months with the least cloud cover are February, March and April (Cloud cover 15).

Average visibility in September - San Mateo Etlatongo, Mexico
Average visibility in September
San Mateo Etlatongo, Mexico
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).

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