September weather forecastUcí, Mexico

September

Weather in September

September, the first month of the autumn in Ucí, is still a hot month, with an average temperature ranging between max 33.6°C (92.5°F) and min 23.3°C (73.9°F).

Temperature

Transitioning from August to September, Ucí observes an average high-temperature of a hot 33.6°C (92.5°F), differing subtly from the previous month. Nighttime temperatures in Ucí consistently average a warm 23.3°C (73.9°F) during September.

Heat index

September's heat index is calculated to be a life-threatening hot 49°C (120.2°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. 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 78%, are the most humid months.

Rainfall

In Ucí, in September, during 20.4 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Ucí, during the entire year, the rain falls for 167.3 days and collects up to 536mm (21.1") of precipitation.

Daylight

In Ucí, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 5:40 am and sunset at 6:12 pm. On the last day of September, in Ucí, sunrise is at 5:48 am and sunset at 5:45 pm CST.

Sunshine

The average sunshine in September in Ucí is 9.4h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Ucí, 33.6°C (92.5°F) is the average high-temperature and 23.3°C (73.9°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 49°C (120.2°F).

The months with the highest humidity are September and October, with an average relative humidity of 78%.

In Ucí, Mexico, the average relative humidity in September is 78%.

In September, the rain falls for 20.4 days. Throughout September, 70mm (2.76") of precipitation is accumulated.

In September, the average day length in Ucí is 12h and 16min.

On the first day of September, sunrise is at 5:40 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:45 pm CST.

The average sunshine duration in September in Ucí is 9.4h.

The months with the highest UV index in Ucí, Mexico, are February through October, with an average maximum UV index of 7.

The average daily maximum UV index in September in Ucí, Mexico, is 7. A UV Index estimate of 6 to 7 represents a high health risk 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

35°C

33.6°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.6km/h

11.2km/h

12.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

12.2

8.8

8.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Ucí, Mexico

Average high temperature in September: 33.6°C

The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (28.1°C).

Average low temperature in September: 23.3°C

The month with the highest average low temperature is June (24.3°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).

Average pressure in September
Ucí, Mexico

Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).

Average wind speed in September
Ucí, Mexico

Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest month (with the lowest average wind speed) is September (10.6km/h).

Average humidity in September
Ucí, Mexico

Average humidity in September: 78%

The months with the highest relative humidity are September and October (78%).
The months with the lowest relative humidity are April and May (63%).

Average rainfall in September
Ucí, Mexico

Average rainfall in September: 70mm

The wettest month (with the highest rainfall) is June (99mm).
The driest months (with the least rainfall) are February and March (12mm).

Average rainfall days in September
Ucí, Mexico

Average rainfall days in September: 20.4 days

The month with the highest number of rainy days is September (20.4 days).
The months with the least rainy days are February and March (7.2 days).

Average daylight in September /
Average sunshine in September
Ucí, Mexico

Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

Average sunshine in September: 9h and 24min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in September
Ucí, Mexico

Average sunshine days in September: 8.8 days

The month with the most sunshine days is March (21.8 days).
The month with the least sunshine days is October (8.5 days).

Average UV index in September
Ucí, Mexico

Average UV index in September: 7

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).