September weather forecastNepopualco, Mexico

September

Weather in September

The first month of the autumn, September, is still a warm month in Nepopualco, Mexico, with an average temperature ranging between min 13.5°C (56.3°F) and max 23.4°C (74.1°F).

Temperature

During September, the average high-temperature is a still moderately hot 23.4°C (74.1°F), maintaining a close resemblance to that of the preceding month. Throughout September, an average low-temperature of 13.5°C (56.3°F) is experienced.

Humidity

With an average relative humidity of 82%, September is the most humid month in Nepopualco.

Rainfall

In Nepopualco, in September, during 28.5 rainfall days, 234mm (9.21") of precipitation is typically accumulated. Throughout the year, there are 192.9 rainfall days, and 1226mm (48.27") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September in Nepopualco, Mexico, sunrise is at 6:20 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.

Sunshine

In Nepopualco, the average sunshine in September is 9h.

UV index

January, February, June through December, with an average maximum UV index of 5, are months with the lowest UV index in Nepopualco. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

In Nepopualco, in September, the average high-temperature is 23.4°C (74.1°F), and the average low-temperature is 13.5°C (56.3°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in May is evaluated at 30°C (86°F).

The most humid month in Nepopualco is September, with an average relative humidity of 82%.

In Nepopualco, Mexico, the average relative humidity in September is 82%.

In Nepopualco, in September, during 28.5 rainfall days, 234mm (9.21") of precipitation is typically accumulated.

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

On the first day of September, sunrise is at 6:20 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.

In September, the average sunshine duration in Nepopualco is 9h.

The months with the lowest UV index are January, February, June through December, with an average maximum UV index of 5.

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Nepopualco, Mexico

  • Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is April (29.4°C).
The month with the lowest average high temperature is January (23.1°C).

  • Average low temperature in September: 13.5°C

The month with the highest average low temperature is May (16.6°C).
The coldest month (with the lowest average low temperature) is January (10°C).

Average pressure in September
Nepopualco, Mexico

  • Average pressure in September: 1015.3mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1014mbar).

Average wind speed in September
Nepopualco, Mexico

  • Average wind speed in September: 4.9km/h

The windiest month (with the highest average wind speed) is April (6.5km/h).
The calmest months (with the lowest average wind speed) are July, August and September (4.9km/h).

Average humidity in September
Nepopualco, Mexico

  • Average humidity in September: 82%

The month with the highest relative humidity is September (82%).
The month with the lowest relative humidity is April (40%).

Average rainfall in September
Nepopualco, Mexico

  • Average rainfall in September: 234mm

The wettest month (with the highest rainfall) is July (237mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in September
Nepopualco, Mexico

  • Average rainfall days in September: 28.5 days

The month with the highest number of rainy days is August (30.4 days).
The month with the least rainy days is December (2.6 days).

Average daylight in September /
Average sunshine in September
Nepopualco, 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 18min).
The month with the least sunshine is November (Average sunshine: 7h and 54min).

Average sunshine days in September
Nepopualco, Mexico

  • Average sunshine days in September: 1.2 days

The month with the most sunshine days is December (26.4 days).
The month with the least sunshine days is August (0.2 days).

Average UV index in September
Nepopualco, 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, February, June, July, August, September, October, November and December (UV index 5).

Average cloud cover in September
Nepopualco, Mexico

  • Average cloud cover in September: 38

The month with the most cloud cover is September (Cloud cover 38).
The month with the least cloud cover is December (Cloud cover 9).

Average visibility in September
Nepopualco, Mexico

  • Average visibility in September: 8km

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