September weather forecastPetatlán, Mexico
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Petatlán, Mexico, with an average temperature fluctuating between 28.8°C (83.8°F) and 23.3°C (73.9°F).Temperature
The average high-temperature during September registers at a still moderately hot 28.8°C (83.8°F), closely corresponding to the preceding month. In Petatlán, September's nights observe an average temperature dip to a still warm 23.3°C (73.9°F).Heat index
September's average heat index is computed to be a tropical 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The months with the highest humidity in Petatlán, Mexico, are September and October, with an average relative humidity of 78%.Rainfall
September is the month with the most rainfall. Rain falls for 26 days and accumulates 191mm (7.52") of precipitation.Daylight
In September, the average length of the day is 12h and 14min.On the first day of September in Petatlán, Mexico, sunrise is at 6:31 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:34 pm CST.
Sunshine
The month with the least sunshine in Petatlán is September, with an average of 8.6h of sunshine.UV index
The months with the highest UV index in Petatlán are March through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 7 in September translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petatlán, Mexico
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is May (30.5°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is June (23.8°C).
The coldest month (with the lowest average low temperature) is February (20.8°C).
Average pressure in September
Petatlán, Mexico
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May and June (1010.6mbar).
Average wind speed in September
Petatlán, Mexico
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).
Average humidity in September
Petatlán, Mexico
- Average humidity in September: 78%
The months with the highest relative humidity are September and October (78%).
The month with the lowest relative humidity is April (58%).
Average rainfall in September
Petatlán, Mexico
- Average rainfall in September: 191mm
The wettest month (with the highest rainfall) is September (191mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
Petatlán, Mexico
- Average rainfall days in September: 26 days
The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is February (1.6 days).
Average daylight in September /
Average sunshine in September
Petatlán, 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: 8h and 36min
The months with the most sunshine are January, February, March, April, May and December (Average sunshine: 9h and 54min).
The month with the least sunshine is September (Average sunshine: 8h and 36min).
Average sunshine days in September
Petatlán, Mexico
- Average sunshine days in September: 1.5 days
The month with the most sunshine days is March (28.9 days).
The month with the least sunshine days is September (1.5 days).
Average UV index in September
Petatlán, Mexico
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Petatlán, Mexico
- Average cloud cover in September: 38
The month with the most cloud cover is September (Cloud cover 38).
The month with the least cloud cover is April (Cloud cover 7).
Average visibility in September
Petatlán, 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).
