September weather forecast
San Bartolomé Tlaltelulco, Mexico

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Weather in September

September, the first month of the autumn in San Bartolomé Tlaltelulco, is still a comfortable month, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 18.2°C (64.8°F).

Temperature

San Bartolomé Tlaltelulco registers an average high-temperature of a still enjoyable 18.2°C (64.8°F) with the arrival of September, showing minor deviation from the preceding month. Throughout September, San Bartolomé Tlaltelulco experiences a low-temperature average of 9.7°C (49.5°F).

Humidity

The most humid month is September, with an average relative humidity of 86%.

Rainfall

In September, in San Bartolomé Tlaltelulco, Mexico, the rain falls for 28 days. Throughout September, 224mm (8.82") of precipitation is accumulated. In San Bartolomé Tlaltelulco, Mexico, during the entire year, the rain falls for 211.5 days and collects up to 1407mm (55.39") of precipitation.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm CST.

Sunshine

The average sunshine in September in San Bartolomé Tlaltelulco is 8.3h.

UV index

The months with the lowest UV index in San Bartolomé Tlaltelulco, Mexico, are September and October, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 3 in September translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the usual temperature for San Bartolomé Tlaltelulco in September?

During September, San Bartolomé Tlaltelulco experiences an average high-temperature of 18.2°C (64.8°F) and a low-temperature of 9.7°C (49.5°F).

What is the most humid month in San Bartolomé Tlaltelulco?

With an average relative humidity of 86%, September is the most humid month.

What is the average humidity in September in San Bartolomé Tlaltelulco?

The average relative humidity in September in San Bartolomé Tlaltelulco is 86%.

How much does it rain in San Bartolomé Tlaltelulco in September?

In September, in San Bartolomé Tlaltelulco, Mexico, the rain falls for 28 days. Throughout September, 224mm (8.82") of precipitation is accumulated.

How many hours of daylight does San Bartolomé Tlaltelulco have in September?

In San Bartolomé Tlaltelulco, the average day length in September is 12h and 14min.

When is the sunrise / sunset in September in San Bartolomé Tlaltelulco?

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, in San Bartolomé Tlaltelulco, Mexico, sunrise is at 6:29 am and sunset at 6:27 pm CST.

How many hours of sunshine does San Bartolomé Tlaltelulco have in September?

In San Bartolomé Tlaltelulco, the average sunshine duration in September is 8.3h.

When is the lowest UV index in San Bartolomé Tlaltelulco?

The months with the lowest UV index in San Bartolomé Tlaltelulco are September and October, with an average maximum UV index of 3.

What is the UV index reading in September in San Bartolomé Tlaltelulco?

The average daily maximum UV index in September in San Bartolomé Tlaltelulco, Mexico, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Bartolomé Tlaltelulco, Mexico

Average temperature in September - San Bartolomé Tlaltelulco, Mexico
  • Average high temperature in September: 18.2°C

The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average pressure in September
San Bartolomé Tlaltelulco, Mexico

Average pressure in September - San Bartolomé Tlaltelulco, Mexico
  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).

Average wind speed in September
San Bartolomé Tlaltelulco, Mexico

Average wind speed in September - San Bartolomé Tlaltelulco, Mexico
  • Average wind speed in September: 5.1km/h

The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).

Average humidity in September
San Bartolomé Tlaltelulco, Mexico

Average humidity in September - San Bartolomé Tlaltelulco, Mexico
  • Average humidity in September: 86%

The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).

Average rainfall in September
San Bartolomé Tlaltelulco, Mexico

Average rainfall in September - San Bartolomé Tlaltelulco, Mexico
  • Average rainfall in September: 224mm

The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).

Average rainfall days in September
San Bartolomé Tlaltelulco, Mexico

Average rainfall days in September - San Bartolomé Tlaltelulco, Mexico
  • Average rainfall days in September: 28 days

The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).

Average daylight in September /
Average sunshine in September
San Bartolomé Tlaltelulco, Mexico

Average daylight in September / Average sunshine in September - San Bartolomé Tlaltelulco, 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 2min

The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days in September
San Bartolomé Tlaltelulco, Mexico

Average sunshine days in September - San Bartolomé Tlaltelulco, Mexico
  • Average sunshine days in September: 1.1 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).

Average UV index in September
San Bartolomé Tlaltelulco, Mexico

Average UV index in September - San Bartolomé Tlaltelulco, Mexico
  • Average UV index in September: 3

The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).

Average cloud cover in September
San Bartolomé Tlaltelulco, Mexico

Average cloud cover in September - San Bartolomé Tlaltelulco, Mexico
  • Average cloud cover in September: 46

The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).

Average visibility in September
San Bartolomé Tlaltelulco, Mexico

Average visibility in September - San Bartolomé Tlaltelulco, Mexico
  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).

San Bartolomé Tlaltelulco, Mexico

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