September weather forecast
Iztapalapa, Mexico

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Iztapalapa, Mexico, with an average temperature varying between 11°C (51.8°F) and 20.8°C (69.4°F).

Temperature

As Iztapalapa transitions into September, the average high-temperature stands at a still agreeable 20.8°C (69.4°F), offering little variation from the preceding month. September nights in Iztapalapa are marked by an average low-temperature of 11°C (51.8°F).

Humidity

The most humid month is September, with an average relative humidity of 77%.

Rainfall

In Iztapalapa, during September, the rain falls for 25.7 days and regularly aggregates up to 116mm (4.57") of precipitation. In Iztapalapa, during the entire year, the rain falls for 176.8 days and collects up to 781mm (30.75") of precipitation.

Daylight

In Iztapalapa, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:21 am and sunset at 6:50 pm. On the last day of September, sunrise is at 6:26 am and sunset at 6:25 pm CST.

Sunshine

In September, the average sunshine in Iztapalapa, Mexico, is 9.1h.

UV index

The months with the lowest UV index are January, June, August through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What are September temperatures in Iztapalapa?
Iztapalapa in September has an average high-temperature of 20.8°C (69.4°F) and an average low-temperature of 11°C (51.8°F).
What is the most humid month in Iztapalapa?
With an average relative humidity of 77%, September is the most humid month in Iztapalapa, Mexico.
What is the average humidity in September in Iztapalapa?
The average relative humidity in September is 77%.
How many days does it rain in September in Iztapalapa?
In Iztapalapa, during September, the rain falls for 25.7 days and regularly aggregates up to 116mm (4.57") of precipitation.
How many hours of daylight does Iztapalapa have in September?
The average day length in September in Iztapalapa, Mexico, is 12h and 14min.
When is the sunrise / sunset in September in Iztapalapa?
On the first day of September in Iztapalapa, Mexico, sunrise is at 6:21 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 6:25 pm CST.
How many hours of sunshine does Iztapalapa have in September?
In Iztapalapa, the average sunshine duration in September is 9.1h.
What is the month with the lowest UV index in Iztapalapa?
January, June, August through December, with an average maximum UV index of 4, are months with the lowest UV index in Iztapalapa, Mexico.
What is the UV index reading in September in Iztapalapa?
The average daily maximum UV index in September in Iztapalapa 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
Iztapalapa, Mexico
  • Average high temperature in September: 20.8°C

The warmest months (with the highest average high temperature) are April and May (25.4°C).
The month with the lowest average high temperature is January (19.2°C).

  • Average low temperature in September: 11°C

The month with the highest average low temperature is May (13.7°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).

Average pressure in September
Iztapalapa, Mexico
  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).

Average wind speed in September
Iztapalapa, Mexico
  • Average wind speed in September: 6.2km/h

The windiest month (with the highest average wind speed) is March (7.4km/h).
The calmest month (with the lowest average wind speed) is July (5.4km/h).

Average humidity in September
Iztapalapa, Mexico
  • Average humidity in September: 77%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (41%).

Average rainfall in September
Iztapalapa, Mexico
  • Average rainfall in September: 116mm

The wettest month (with the highest rainfall) is July (181mm).
The driest month (with the least rainfall) is December (4mm).

Average rainfall days in September
Iztapalapa, Mexico
  • Average rainfall days in September: 25.7 days

The month with the highest number of rainy days is July (28.8 days).
The month with the least rainy days is December (3.9 days).

Average daylight in September /
Average sunshine in September
Iztapalapa, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).

Average sunshine days in September
Iztapalapa, Mexico
  • Average sunshine days in September: 2.5 days

The month with the most sunshine days is December (25.1 days).
The month with the least sunshine days is July (0.3 days).

Average UV index in September
Iztapalapa, 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
Iztapalapa, Mexico
  • Average cloud cover in September: 37

The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is December (Cloud cover 10).

Average visibility in September
Iztapalapa, 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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