September weather forecast
Tetlanohcán, Mexico

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Tetlanohcán, Mexico, with an average temperature fluctuating between 18.8°C (65.8°F) and 9.7°C (49.5°F).

Temperature

Tetlanohcán's weather in September displays an average high-temperature of an enjoyable 18.8°C (65.8°F), showing minor disparity from August's 20°C (68°F). Tetlanohcán's average low-temperature in September is measured at a chilly 9.7°C (49.5°F).

Humidity

The most humid month is September, with an average relative humidity of 84%.

Rainfall

In Tetlanohcán, during September, the rain falls for 27.6 days and regularly aggregates up to 143mm (5.63") of precipitation. In Tetlanohcán, during the entire year, the rain falls for 207.4 days and collects up to 906mm (35.67") of precipitation.

Snowfall

In Tetlanohcán, snow does not fall in February through October and December.

Daylight

In September, the average length of the day 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 Tetlanohcán, the average sunshine in September is 8.5h.

UV index

January, February, May through December, with an average maximum UV index of 4, are months with the lowest UV index in Tetlanohcán. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What are the temperatures in September?
In September, the average high-temperature and low-temperature are 18.8°C (65.8°F) and 9.7°C (49.5°F) respectively.
What is the most humid month?
The most humid month is September, with an average relative humidity of 84%.
What is the average humidity in September?
The average relative humidity in September is 84%.
How many days does it rain in September?
In September, the rain falls for 27.6 days. Throughout September, 143mm (5.63") of precipitation is accumulated.
When it does not snow?
In Tetlanohcán, snow does not fall in February through October and December.
What is the average length of the day in September?
In Tetlanohcán, the average day length in September is 12h and 14min.
When is the sunrise / sunset in September in Tetlanohcán?
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 long on average sun shines in September?
In September, the average sunshine duration is 8.5h.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, May through December, with an average maximum UV index of 4.
How high is the UV index in September in Tetlanohcán?
In Tetlanohcán, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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 snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Tetlanohcán, Mexico
Average temperature in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average pressure in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average wind speed in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average humidity in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average rainfall in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average rainfall days in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average snowfall days in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average daylight in September /
Average sunshine in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average sunshine days in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average UV index in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average cloud cover in September
Tetlanohcán, 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 - Tetlanohcán, Mexico
Average visibility in September
Tetlanohcán, 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).

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