September weather forecastChaparaco, Mexico

September

Weather in September

September, the first month of the autumn in Chaparaco, is still a warm month, with an average temperature ranging between max 23.5°C (74.3°F) and min 12.3°C (54.1°F).

Temperature

September's onset records a minor alteration in the average high-temperature to a still moderately hot 23.5°C (74.3°F) from August's 24.3°C (75.7°F). During the September nights, an average temperature of 12.3°C (54.1°F) is observed.

Humidity

With an average relative humidity of 83%, September is the most humid month.

Rainfall

In Chaparaco, in September, it is raining for 24.1 days, with typically 105mm (4.13") of accumulated precipitation. Throughout the year, there are 144.4 rainfall days, and 602mm (23.7") of precipitation is accumulated.

Daylight

In Chaparaco, the average length of the day in September is 12h and 15min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:03 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:37 pm CST.

Sunshine

The average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

An average high-temperature, in September, in Chaparaco, is 23.5°C (74.3°F) and the average low-temperature is 12.3°C (54.1°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in June is estimated at 30°C (86°F).

With an average relative humidity of 83%, September is the most humid month.

In September, the average relative humidity is 83%.

In Chaparaco, in September, it is raining for 24.1 days, with typically 105mm (4.13") of accumulated precipitation.

In Chaparaco, the average day length in September is 12h and 15min.

On the first day of September in Chaparaco, Mexico, sunrise is at 6:33 am and sunset at 7:03 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:37 pm CST.

In Chaparaco, the average sunshine duration in September is 9.1h.

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Chaparaco, Mexico

  • Average high temperature in September: 23.5°C

The warmest month (with the highest average high temperature) is May (30.1°C).
The month with the lowest average high temperature is January (22°C).

  • Average low temperature in September: 12.3°C

The month with the highest average low temperature is June (15.7°C).
The coldest month (with the lowest average low temperature) is January (8°C).

Average pressure in September
Chaparaco, Mexico

  • Average pressure in September: 1014.1mbar

The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).

Average wind speed in September
Chaparaco, Mexico

  • Average wind speed in September: 5.3km/h

The windiest month (with the highest average wind speed) is April (8.2km/h).
The calmest month (with the lowest average wind speed) is July (4.8km/h).

Average humidity in September
Chaparaco, Mexico

  • Average humidity in September: 83%

The month with the highest relative humidity is September (83%).
The month with the lowest relative humidity is April (37%).

Average rainfall in September
Chaparaco, Mexico

  • Average rainfall in September: 105mm

The wettest month (with the highest rainfall) is July (143mm).
The driest month (with the least rainfall) is April (2mm).

Average rainfall days in September
Chaparaco, Mexico

  • Average rainfall days in September: 24.1 days

The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is April (2.6 days).

Average daylight in September /
Average sunshine in September
Chaparaco, 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: 10h and 54min).

  • Average sunshine in September: 9h and 6min

The months with the most sunshine are April, May and December (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 8h and 48min).

Average sunshine days in September
Chaparaco, Mexico

  • Average sunshine days in September: 3.7 days

The month with the most sunshine days is April (26.7 days).
The month with the least sunshine days is July (2.8 days).

Average UV index in September
Chaparaco, Mexico

  • Average UV index in September: 5

The months with the highest UV index are March, April and May (UV index 6).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Chaparaco, Mexico

  • Average cloud cover in September: 39

The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 9).

Average visibility in September
Chaparaco, Mexico

  • Average visibility in September: 8km

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