September weather forecastLa Brecha, Mexico
September
Weather in September
The first month of the autumn, September, is still a tropical month in La Brecha, Mexico, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 34.6°C (94.3°F).Temperature
With the transition into September, La Brecha notes an average high-temperature of a tropical 34.6°C (94.3°F), closely resembling August. La Brecha's average low-temperature for the month of September records at a warm 25.5°C (77.9°F).Heat index
The heat index value during September is appraised at a burning hot 48°C (118.4°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The most humid month is September, with an average relative humidity of 69%.Rainfall
September is the month with the most rainfall in La Brecha. Rain falls for 18.9 days and accumulates 90mm (3.54") of precipitation.Daylight
In La Brecha, the average length of the day in September is 12h and 17min.On the first day of September in La Brecha, Mexico, sunrise is at 5:54 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:01 pm MST.
Sunshine
In La Brecha, Mexico, the average sunshine in September is 10h.UV index
The months with the highest UV index in La Brecha are June and September, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, an average UV index of 8 transforms into the following instructions:
Never be careless. Unprotected skin and eyes can be harmed swiftly. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
La Brecha, Mexico
- Average high temperature in September: 34.6°C
The warmest month (with the highest average high temperature) is June (36.2°C).
The month with the lowest average high temperature is December (27.5°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is July (26.6°C).
The coldest month (with the lowest average low temperature) is February (14.1°C).
Average pressure in September
La Brecha, Mexico
- Average pressure in September: 1010.4mbar
The month with the highest atmospheric pressure is January (1015.8mbar).
The month with the lowest atmospheric pressure is September (1010.4mbar).
Average wind speed in September
La Brecha, Mexico
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is June (12.6km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
La Brecha, Mexico
- Average humidity in September: 69%
The month with the highest relative humidity is September (69%).
The month with the lowest relative humidity is May (38%).
Average rainfall in September
La Brecha, Mexico
- Average rainfall in September: 90mm
The wettest month (with the highest rainfall) is September (90mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
La Brecha, Mexico
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is July (24.4 days).
The month with the least rainy days is April (1.2 days).
Average daylight in September /
Average sunshine in September
La Brecha, 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 36min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
La Brecha, Mexico
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is March (28.9 days).
The month with the least sunshine days is July (3.4 days).
Average UV index in September
La Brecha, Mexico
- Average UV index in September: 8
The months with the highest UV index are June and September (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
La Brecha, Mexico
- Average cloud cover in September: 26
The month with the most cloud cover is July (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in September
La Brecha, 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).





