September weather forecastMilpa Alta, Mexico

September

Weather in September

September, the first month of the autumn in Milpa Alta, is also an agreeable month, with an average temperature varying between 20.5°C (68.9°F) and 11.2°C (52.2°F).

Temperature

With the advent of September, Milpa Alta's high-temperatures adjust to a still agreeable 20.5°C (68.9°F), closely aligning with the preceding month. September's nights observe an average temperature of 11.2°C (52.2°F).

Humidity

September is the most humid month in Milpa Alta, with an average relative humidity of 80%.

Rainfall

In Milpa Alta, in September, it is raining for 27.5 days, with typically 174mm (6.85") of accumulated precipitation. In Milpa Alta, during the entire year, the rain falls for 195.2 days and collects up to 1088mm (42.83") of precipitation.

Daylight

In September, the average length of the day 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 6:24 pm CST.

Sunshine

The average sunshine in September is 9h.

UV index

January, August through December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

The average high-temperature, in September, in Milpa Alta, is 20.5°C (68.9°F), while the average low-temperature is 11.2°C (52.2°F).

With an average relative humidity of 80%, September is the most humid month.

In September, the average relative humidity is 80%.

In Milpa Alta, during September, the rain falls for 27.5 days and regularly aggregates up to 174mm (6.85") of precipitation.

In September, the average day length is 12h and 14min.

On the first day of September, 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 6:24 pm CST.

The average sunshine duration in September in Milpa Alta is 9h.

January, August through December, with an average maximum UV index of 4, are months with the lowest UV index.

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Milpa Alta, Mexico

  • Average high temperature in September: 20.5°C

The warmest month (with the highest average high temperature) is April (25.3°C).
The month with the lowest average high temperature is January (19.3°C).

  • Average low temperature in September: 11.2°C

The month with the highest average low temperature is May (13°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).

Average pressure in September
Milpa Alta, Mexico

  • Average pressure in September: 1015.6mbar

The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is May (1014.2mbar).

Average wind speed in September
Milpa Alta, Mexico

  • Average wind speed in September: 5.5km/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 (4.8km/h).

Average humidity in September
Milpa Alta, Mexico

  • Average humidity in September: 80%

The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is April (43%).

Average rainfall in September
Milpa Alta, Mexico

  • Average rainfall in September: 174mm

The wettest month (with the highest rainfall) is July (230mm).
The driest month (with the least rainfall) is December (5mm).

Average rainfall days in September
Milpa Alta, Mexico

  • Average rainfall days in September: 27.5 days

The months with the highest number of rainy days are July and August (29.7 days).
The month with the least rainy days is December (4.3 days).

Average daylight in September /
Average sunshine in September
Milpa Alta, Mexico

  • Average daylight in September: 12h and 12min

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 0min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).

Average sunshine days in September
Milpa Alta, Mexico

  • Average sunshine days in September: 1.3 days

The month with the most sunshine days is December (24.9 days).
The months with the least sunshine days are July and August (0.5 days).

Average UV index in September
Milpa Alta, Mexico

  • Average UV index in September: 4

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

Average cloud cover in September
Milpa Alta, Mexico

  • Average cloud cover in September: 37

The months with the most cloud cover are July and September (Cloud cover 37).
The months with the least cloud cover are February and December (Cloud cover 10).

Average visibility in September
Milpa Alta, 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).