September weather forecastCerro de Ortega, Mexico

September

Weather in September

September, the first month of the autumn in Cerro de Ortega, is still a hot month, with an average temperature ranging between max 31°C (87.8°F) and min 22.5°C (72.5°F).

Temperature

September ushers in an average high-temperature of a still hot 31°C (87.8°F), aligning closely with the preceding month. Throughout September, Cerro de Ortega records an average temperature of 22.5°C (72.5°F) at night.

Heat index

The heat index value during September is estimated at an extremely hot 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

September and October, with an average relative humidity of 78%, are the most humid months in Cerro de Ortega.

Rainfall

September is the month with the most rainfall. Rain falls for 17.4 days and accumulates 105mm (4.13") of precipitation.

Daylight

In Cerro de Ortega, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:09 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:43 pm CST.

Sunshine

September has the least sunshine of the year, with an average of 9.1h of sunshine.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a regular UV index of 7 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

During September, Cerro de Ortega experiences an average high-temperature of 31°C (87.8°F) and a low-temperature of 22.5°C (72.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in September is estimated at 40°C (104°F).

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

The average relative humidity in September is 78%.

The month with the most rainfall is September, when the rain falls for 17.4 days and typically aggregates up to 105mm (4.13") of precipitation.

In Cerro de Ortega, in September, during 17.4 rainfall days, 105mm (4.13") of precipitation is typically accumulated.

The average day length in September is 12h and 14min.

In September, on the first day of the month, 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 6:43 pm CST.

September has the least sunshine of the year, with an average of 9.1h of sunshine.

In September, the average sunshine duration is 9.1h.

The months with the highest UV index are April through October, with an average maximum UV index of 7.

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cerro de Ortega, Mexico

  • Average high temperature in September: 31°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is February (29.8°C).

  • Average low temperature in September: 22.5°C

The months with the highest average low temperature are June and August (23.3°C).
The coldest month (with the lowest average low temperature) is February (19°C).

Average pressure in September
Cerro de Ortega, Mexico

  • Average pressure in September: 1011.3mbar

The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are June and September (1011.3mbar).

Average wind speed in September
Cerro de Ortega, Mexico

  • Average wind speed in September: 6.7km/h

The windiest months (with the highest average wind speed) are March and August (6.9km/h).
The calmest month (with the lowest average wind speed) is October (6.3km/h).

Average humidity in September
Cerro de Ortega, 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 (59%).

Average rainfall in September
Cerro de Ortega, Mexico

  • Average rainfall in September: 105mm

The wettest month (with the highest rainfall) is September (105mm).
The driest month (with the least rainfall) is April (0mm).

Average rainfall days in September
Cerro de Ortega, Mexico

  • Average rainfall days in September: 17.4 days

The month with the highest number of rainy days is September (17.4 days).
The month with the least rainy days is April (0.7 days).

Average daylight in September /
Average sunshine in September
Cerro de Ortega, 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 0min).

  • Average sunshine in September: 9h and 6min

The months with the most sunshine are March, April and December (Average sunshine: 9h and 54min).
The month with the least sunshine is September (Average sunshine: 9h and 6min).

Average sunshine days in September
Cerro de Ortega, Mexico

  • Average sunshine days in September: 10.6 days

The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is September (10.6 days).

Average UV index in September
Cerro de Ortega, Mexico

  • Average UV index in September: 7

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

Average cloud cover in September
Cerro de Ortega, Mexico

  • Average cloud cover in September: 32

The month with the most cloud cover is September (Cloud cover 32).
The months with the least cloud cover are March and April (Cloud cover 7).

Average visibility in September
Cerro de Ortega, Mexico

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).