September weather forecastCiudad Valles, Mexico

September

Weather in September

The first month of the autumn, September, is also a hot month in Ciudad Valles, Mexico, with temperature in the range of an average high of 32.2°C (90°F) and an average low of 21.3°C (70.3°F).

Temperature

In September, Ciudad Valles notes an average high-temperature of a still hot 32.2°C (90°F), hardly different from the preceding month. In the month of September, Ciudad Valles records a consistent average low-temperature of 21.3°C (70.3°F).

Heat index

The heat index in September is calculated to be a blisteringly hot 44°C (111.2°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

With an average relative humidity of 77%, September is the most humid month.

Rainfall

In September, in Ciudad Valles, the rain falls for 18.7 days. Throughout September, 91mm (3.58") of precipitation is accumulated. Throughout the year, there are 152.5 rainfall days, and 576mm (22.68") of precipitation is accumulated.

Daylight

In Ciudad Valles, the average length of the day in September is 12h and 16min.
On the first day of September, sunrise is at 6:19 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 6:24 pm CST.

Sunshine

In Ciudad Valles, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Ciudad Valles is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the UV index of 6 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

The average high-temperature, in September, in Ciudad Valles, is 32.2°C (90°F), while the average low-temperature is 21.3°C (70.3°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 44°C (111.2°F).

September is the most humid month in Ciudad Valles, Mexico, with an average relative humidity of 77%.

The average relative humidity in September is 77%.

In Ciudad Valles, Mexico, in September, it is raining for 18.7 days, with typically 91mm (3.58") of accumulated precipitation.

In Ciudad Valles, the average day length in September is 12h and 16min.

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 6:52 pm. On the last day of the month, in Ciudad Valles, Mexico, sunrise is at 6:27 am and sunset at 6:24 pm CST.

In September, the average sunshine duration in Ciudad Valles is 8.5h.

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from 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
Ciudad Valles, Mexico

  • Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is May (35.1°C).
The month with the lowest average high temperature is January (24.2°C).

  • Average low temperature in September: 21.3°C

The month with the highest average low temperature is June (22.3°C).
The coldest month (with the lowest average low temperature) is January (12.9°C).

Average pressure in September
Ciudad Valles, Mexico

  • Average pressure in September: 1014.1mbar

The month with the highest atmospheric pressure is January (1019.4mbar).
The month with the lowest atmospheric pressure is May (1012.7mbar).

Average wind speed in September
Ciudad Valles, Mexico

  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is April (8.1km/h).
The calmest month (with the lowest average wind speed) is November (5.5km/h).

Average humidity in September
Ciudad Valles, 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 (61%).

Average rainfall in September
Ciudad Valles, Mexico

  • Average rainfall in September: 91mm

The wettest month (with the highest rainfall) is June (93mm).
The driest month (with the least rainfall) is December (12mm).

Average rainfall days in September
Ciudad Valles, Mexico

  • Average rainfall days in September: 18.7 days

The month with the highest number of rainy days is September (18.7 days).
The month with the least rainy days is February (7.6 days).

Average daylight in September /
Average sunshine in September
Ciudad Valles, Mexico

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).

Average sunshine days in September
Ciudad Valles, Mexico

  • Average sunshine days in September: 9 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is September (9 days).

Average UV index in September
Ciudad Valles, Mexico

  • Average UV index in September: 6

The months with the highest UV index are March, April, May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 5).

Average cloud cover in September
Ciudad Valles, Mexico

  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Ciudad Valles, Mexico

  • Average visibility in September: 9km

The month with the highest visibility is April (10km).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (9km).