Monclova
Mexico
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Monclova, Mexico

The first month of the autumn, September, is still a tropical month in Monclova, Mexico, with temperature in the range of an average low of 19.9°C (67.8°F) and an average high of 31.7°C (89.1°F).

Temperature

In September, the average high-temperature marginally drops, from 34.9°C (94.8°F) in August, to a still tropical 31.7°C (89.1°F). The average low-temperature, in Monclova, is 19.9°C (67.8°F).

Heat index

In September, the average heat index is appraised at a sweltering 35.3°C (95.5°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, metabolic differences, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity in Monclova is 56%.

Rainfall

September is the month with the most rainfall in Monclova. Rain falls for 6.3 days and accumulates 78.5mm (3.1") of precipitation.

Daylight

In September, the average length of the day in Monclova is 12.3h.

Sunshine

The average sunshine in September in Monclova, Mexico, is 7.4h.

What is the temperature in September in Monclova?

The average high-temperature, in September, in Monclova, is 31.7°C (89.1°F), while the average low-temperature is 19.9°C (67.8°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines air temperature and relative humidity, in September is appraised at 35.3°C (95.5°F).

What is the average humidity in September in Monclova?

In Monclova, the average relative humidity in September is 56%.

How many days does it rain in September in Monclova?

In Monclova, in September, it is raining for 6.3 days, with typically 78.5mm (3.1") of accumulated precipitation.

What is the rainiest month in Monclova?

The month with the most rainfall is September when the rain falls for 6.3 days and typically aggregates up to 78.5mm (3.1") of precipitation.

What is the average length of the day in September in Monclova?

The average length of the day in September in Monclova is 12.3h.

How long on average sun shines in September in Monclova?

In September, the average sunshine is 7.4h.
Average temperature in September - Monclova, Mexico
  • Average high temperature in September: 31.7°C

The warmest month (with the highest average high temperature) is June (35.8°C).
The month with the lowest average high temperature is January (19.7°C).

  • Average low temperature in September: 19.9°C

The month with the highest average low temperature is July (22.6°C).
The coldest month (with the lowest average low temperature) is January (5.5°C).

Average humidity in September - Monclova, Mexico
  • Average humidity in September: 56%

The month with the highest relative humidity is October (59%).
The month with the lowest relative humidity is March (43%).

Average rainfall in September - Monclova, Mexico
  • Average rainfall in September: 78.5mm

The wettest month (with the highest rainfall) is September (78.5mm).
The driest month (with the lowest rainfall) is March (8.1mm).

Average rainfall days in September - Monclova, Mexico
  • Average rainfall days in September: 6.3 days

The month with the highest number of rainy days is September (6.3 days).
The month with the lowest number of rainy days is March (1.7 days).

Average daylight in September / Average sunshine in September - Monclova, Mexico
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.5h).

  • Average sunshine in September: 7.4h

The month with most sunshine is July (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 5.5h).