September weather forecastCerralvo, Mexico
September
Weather in September
September, the first month of the autumn in Cerralvo, is also a hot month, with an average temperature fluctuating between 24.2°C (75.6°F) and 33.1°C (91.6°F).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a fiery hot 37.3°C (99.1°F) in August to a tropical 33.1°C (91.6°F). Cerralvo observes an average low-temperature of 24.2°C (75.6°F) during September.Heat index
In September, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.For clarity, heat index numbers account for light winds and areas under shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
September is the most humid month in Cerralvo, with an average relative humidity of 63%.Rainfall
The month with the most rainfall in Cerralvo is September, when the rain falls for 16.7 days and typically aggregates up to 90mm (3.54") of precipitation.Snowfall
January through November are months without snowfall.Daylight
In September, the average length of the day in Cerralvo is 12h and 18min.On the first day of September in Cerralvo, sunrise is at 6:18 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:25 pm CST.
Sunshine
In September, the average sunshine in Cerralvo is 8.7h.UV index
In September, the average daily maximum UV index in Cerralvo, Mexico, is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cerralvo, Mexico
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is August (37.3°C).
The month with the lowest average high temperature is January (20.5°C).
- Average low temperature in September: 24.2°C
The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (11°C).
Average pressure in September
Cerralvo, Mexico
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is January (1020mbar).
The month with the lowest atmospheric pressure is May (1011.4mbar).
Average wind speed in September
Cerralvo, Mexico
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is July (20.7km/h).
The calmest month (with the lowest average wind speed) is December (13.2km/h).
Average humidity in September
Cerralvo, Mexico
- Average humidity in September: 63%
The month with the highest relative humidity is September (63%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Cerralvo, Mexico
- Average rainfall in September: 90mm
The wettest month (with the highest rainfall) is September (90mm).
The driest months (with the least rainfall) are January and February (11mm).
Average rainfall days in September
Cerralvo, Mexico
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is September (16.7 days).
The month with the least rainy days is January (6 days).
Average snowfall days in September
Cerralvo, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Cerralvo, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Cerralvo, Mexico
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is September (11.5 days).
Average UV index in September
Cerralvo, Mexico
- Average UV index in September: 7
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Cerralvo, Mexico
- Average cloud cover in September: 31
The month with the most cloud cover is September (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Cerralvo, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





