September weather forecastEl Pacayal, Mexico
September
Weather in September
The first month of the autumn, September, is also a hot month in El Pacayal, Mexico, with an average temperature varying between 30.1°C (86.2°F) and 23.9°C (75°F).Temperature
September's climate shows a minor adjustment in average high-temperatures to a still hot 30.1°C (86.2°F) from August's 30.7°C (87.3°F). In the month of September, El Pacayal experiences an average low-temperature of 23.9°C (75°F).Heat index
Throughout September, the heat index is computed to be a fiery hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
September and October, with an average relative humidity of 76%, are the most humid months.Rainfall
In El Pacayal, in September, it is raining for 27.8 days, with typically 182mm (7.17") of accumulated precipitation. In El Pacayal, during the entire year, the rain falls for 226.9 days and collects up to 1231mm (48.46") of precipitation.Daylight
In El Pacayal, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 5:55 am and sunset at 6:20 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 5:57 pm CST.
Sunshine
In September, the average sunshine is 10.6h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Pacayal, Mexico
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).
- Average low temperature in September: 23.9°C
The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).
Average pressure in September
El Pacayal, Mexico
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).
Average wind speed in September
El Pacayal, Mexico
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).
Average humidity in September
El Pacayal, Mexico
- Average humidity in September: 76%
The months with the highest relative humidity are September and October (76%).
The months with the lowest relative humidity are January, February and March (63%).
Average rainfall in September
El Pacayal, Mexico
- Average rainfall in September: 182mm
The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
El Pacayal, Mexico
- Average rainfall days in September: 27.8 days
The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).
Average daylight in September /
Average sunshine in September
El Pacayal, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 36min
The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in September
El Pacayal, Mexico
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).
Average UV index in September
El Pacayal, Mexico
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
El Pacayal, Mexico
- Average cloud cover in September: 38
The month with the most cloud cover is September (Cloud cover 38).
The months with the least cloud cover are January and December (Cloud cover 11).
Average visibility in September
El Pacayal, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, July, October, November and December (10km).
The months with the lowest visibility are May, August and September (9km).





