September weather forecastComalcalco, Mexico

September

Weather in September

The first month of the autumn, September, is also a hot month in Comalcalco, Mexico, with temperature in the range of an average low of 24.7°C (76.5°F) and an average high of 30.6°C (87.1°F).

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a still hot 30.6°C (87.1°F) from August's 31.3°C (88.3°F). Throughout September, Comalcalco anticipates an average low-temperature of 24.7°C (76.5°F).

Heat index

The heat index for September is appraised at a scorching 40°C (104°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in September is 82%.

Rainfall

In Comalcalco, during September, the rain falls for 25.5 days and regularly aggregates up to 155mm (6.1") of precipitation. Throughout the year, in Comalcalco, there are 223 rainfall days, and 1255mm (49.41") of precipitation is accumulated.

Daylight

In Comalcalco, the average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 5:58 am and sunset at 6:26 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 6:01 pm CST.

Sunshine

The average sunshine in September in Comalcalco is 9.2h.

UV index

The months with the highest UV index in Comalcalco are March through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

The high-temperature during September is 30.6°C (87.1°F) and the low-temperature is 24.7°C (76.5°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 40°C (104°F).

The average relative humidity in September is 82%.

In September, in Comalcalco, Mexico, the rain falls for 25.5 days. Throughout September, 155mm (6.1") of precipitation is accumulated.

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

On the first day of September in Comalcalco, Mexico, sunrise is at 5:58 am and sunset at 6:26 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 6:01 pm CST.

In September, the average sunshine duration in Comalcalco is 9.2h.

The months with the highest UV index in Comalcalco are March through September, with an average maximum UV index of 7.

The average daily maximum UV index in September in Comalcalco, Mexico, is 7. A UV Index value of 6 to 7 symbolizes 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Comalcalco, Mexico

  • Average high temperature in September: 30.6°C

The warmest month (with the highest average high temperature) is May (33.1°C).
The month with the lowest average high temperature is January (25.3°C).

  • Average low temperature in September: 24.7°C

The month with the highest average low temperature is May (25.5°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average pressure in September
Comalcalco, Mexico

  • Average pressure in September: 1011.1mbar

The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is May (1010.6mbar).

Average wind speed in September
Comalcalco, Mexico

  • Average wind speed in September: 9.8km/h

The windiest month (with the highest average wind speed) is July (12.6km/h).
The calmest month (with the lowest average wind speed) is October (9.6km/h).

Average humidity in September
Comalcalco, Mexico

  • Average humidity in September: 82%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are April and May (71%).

Average rainfall in September
Comalcalco, Mexico

  • Average rainfall in September: 155mm

The wettest month (with the highest rainfall) is October (197mm).
The driest month (with the least rainfall) is April (31mm).

Average rainfall days in September
Comalcalco, Mexico

  • Average rainfall days in September: 25.5 days

The month with the highest number of rainy days is September (25.5 days).
The month with the least rainy days is April (11.4 days).

Average daylight in September /
Average sunshine in September
Comalcalco, Mexico

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in September: 9h and 12min

The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in September
Comalcalco, Mexico

  • Average sunshine days in September: 2.7 days

The month with the most sunshine days is March (17.1 days).
The month with the least sunshine days is September (2.7 days).

Average UV index in September
Comalcalco, Mexico

  • Average UV index in September: 7

The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).

Average cloud cover in September
Comalcalco, Mexico

  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is April (Cloud cover 22).

Average visibility in September
Comalcalco, Mexico

  • Average visibility in September: 9km

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