September weather forecastZapotitlán de Vadillo, Mexico

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Zapotitlán de Vadillo, Mexico, with an average temperature ranging between min 18.2°C (64.8°F) and max 28°C (82.4°F).

Temperature

Upon the beginning of September, Zapotitlán de Vadillo's high-temperatures register at a still warm 28°C (82.4°F), closely mirroring the preceding month. Throughout September, the temperature falls to an average low of 18.2°C (64.8°F).

Heat index

The heat index value for September is computed to be a hot 33°C (91.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The most humid month in Zapotitlán de Vadillo is September, with an average relative humidity of 85%.

Rainfall

In Zapotitlán de Vadillo, during September, the rain falls for 28.6 days and regularly aggregates up to 218mm (8.58") of precipitation. Throughout the year, there are 182.3 rainfall days, and 1070mm (42.13") of precipitation is accumulated.

Daylight

In Zapotitlán de Vadillo, Mexico, the average length of the day in September is 12h and 14min.
On the first day of September in Zapotitlán de Vadillo, sunrise is at 6:40 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:44 pm CST.

Sunshine

September has the least sunshine of the year, with an average of 8.6h of sunshine.

UV index

The months with the highest UV index in Zapotitlán de Vadillo are February through July, September through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During September, Zapotitlán de Vadillo experiences an average high-temperature of 28°C (82.4°F) and a low-temperature of 18.2°C (64.8°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 33°C (91.4°F).

September is the most humid month in Zapotitlán de Vadillo, with an average relative humidity of 85%.

In September, the average relative humidity in Zapotitlán de Vadillo is 85%.

In Zapotitlán de Vadillo, Mexico, in September, it is raining for 28.6 days, with typically 218mm (8.58") of accumulated precipitation.

In September, the average day length in Zapotitlán de Vadillo, Mexico, is 12h and 14min.

On the first day of September in Zapotitlán de Vadillo, sunrise is at 6:40 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:44 pm CST.

The month with the least sunshine in Zapotitlán de Vadillo, Mexico, is September, with an average of 8.6h of sunshine.

The average sunshine duration in September in Zapotitlán de Vadillo is 8.6h.

February through July, September through December, with an average maximum UV index of 6, are months with the highest UV index in Zapotitlán de Vadillo.

In Zapotitlán de Vadillo, Mexico, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

28.9°C

28°C

28.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.8km/h

5.4km/h

5.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.4

0.9

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Zapotitlán de Vadillo, Mexico

Average high temperature in September: 28°C

The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is December (27.7°C).

Average low temperature in September: 18.2°C

The month with the highest average low temperature is June (19.9°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).

Average pressure in September
Zapotitlán de Vadillo, Mexico

Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is January (1014.7mbar).
The months with the lowest atmospheric pressure are May and June (1011.6mbar).

Average wind speed in September
Zapotitlán de Vadillo, Mexico

Average wind speed in September: 5.1km/h

The windiest month (with the highest average wind speed) is April (6.6km/h).
The calmest month (with the lowest average wind speed) is July (5km/h).

Average humidity in September
Zapotitlán de Vadillo, Mexico

Average humidity in September: 85%

The month with the highest relative humidity is September (85%).
The month with the lowest relative humidity is April (50%).

Average rainfall in September
Zapotitlán de Vadillo, Mexico

Average rainfall in September: 218mm

The wettest month (with the highest rainfall) is August (234mm).
The driest month (with the least rainfall) is April (4mm).

Average rainfall days in September
Zapotitlán de Vadillo, Mexico

Average rainfall days in September: 28.6 days

The month with the highest number of rainy days is August (30.6 days).
The month with the least rainy days is April (2.8 days).

Average daylight in September /
Average sunshine in September
Zapotitlán de Vadillo, Mexico

Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

Average sunshine in September: 8h and 36min

The months with the most sunshine are 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
Zapotitlán de Vadillo, Mexico

Average sunshine days in September: 0.9 days

The month with the most sunshine days is April (26.3 days).
The month with the least sunshine days is August (0.4 days).

Average UV index in September
Zapotitlán de Vadillo, Mexico

Average UV index in September: 6

The months with the highest UV index are February, March, April, May, June, July, September, October, November and December (UV index 6).
The months with the lowest UV index are January and August (UV index 5).