September weather forecastPalmácia, Brazil

September

Weather in September

The first month of the spring, September, is still a hot month in Palmácia, Brazil, with temperature in the range of an average high of 32.2°C (90°F) and an average low of 22.6°C (72.7°F).

Temperature

Transitioning from August to September, Palmácia observes an average high-temperature of a still tropical 32.2°C (90°F), differing subtly from the previous month. The month of September records an average low-temperature of 22.6°C (72.7°F).

Heat index

September's average heat index is evaluated at a blisteringly hot 40°C (104°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 68%.

Rainfall

The month with the least rainfall in Palmácia, Brazil, is September, when the rain falls for 5.6 days and typically collects 3mm (0.12") of precipitation.

Daylight

The average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:36. On the last day of September, in Palmácia, Brazil, sunrise is at 05:20 and sunset at 17:29 -03.

Sunshine

In September, the average sunshine in Palmácia, Brazil, is 8.8h.

UV index

January through March, May through December, 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 rays for the ordinary person.
Note: During September, 7 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

In September, in Palmácia, the average high-temperature is 32.2°C (90°F), and the average low-temperature is 22.6°C (72.7°F). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 40°C (104°F).

September and October, with an average relative humidity of 68%, are the least humid months in Palmácia.

In Palmácia, Brazil, the average relative humidity in September is 68%.

September is the month with the least rainfall in Palmácia, Brazil. Rain falls for 5.6 days and accumulates 3mm (0.12") of precipitation.

In Palmácia, Brazil, in September, it is raining for 5.6 days, with typically 3mm (0.12") of accumulated precipitation.

The average day length in September in Palmácia is 12h and 5min.

In September, on the first day of the month, sunrise is at 05:34 and sunset at 17:36. On the last day of the month, in Palmácia, sunrise is at 05:20 and sunset at 17:29 -03.

In September, the average sunshine duration in Palmácia, Brazil, is 8.8h.

The months with the highest UV index in Palmácia, Brazil, are January through March, May through December, with an average maximum UV index of 7.

The average daily maximum UV index in September in Palmácia is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from 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
Palmácia, Brazil

  • Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is October (32.5°C).
The month with the lowest average high temperature is June (30.3°C).

  • Average low temperature in September: 22.6°C

The month with the highest average low temperature is December (24.6°C).
The coldest month (with the lowest average low temperature) is July (21.8°C).

Average pressure in September
Palmácia, Brazil

  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed in September
Palmácia, Brazil

  • Average wind speed in September: 19.2km/h

The windiest month (with the highest average wind speed) is September (19.2km/h).
The calmest month (with the lowest average wind speed) is April (11.2km/h).

Average humidity in September
Palmácia, Brazil

  • Average humidity in September: 68%

The month with the highest relative humidity is April (81%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in September
Palmácia, Brazil

  • Average rainfall in September: 3mm

The wettest month (with the highest rainfall) is April (94mm).
The driest month (with the least rainfall) is September (3mm).

Average rainfall days in September
Palmácia, Brazil

  • Average rainfall days in September: 5.6 days

The month with the highest number of rainy days is April (23.8 days).
The month with the least rainy days is September (5.6 days).

Average daylight in September /
Average sunshine in September
Palmácia, Brazil

  • Average daylight in September: 12h and 6min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 48min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is March (Average sunshine: 6h and 54min).

Average sunshine days in September
Palmácia, Brazil

  • Average sunshine days in September: 20.9 days

The month with the most sunshine days is September (20.9 days).
The month with the least sunshine days is April (3.7 days).

Average UV index in September
Palmácia, Brazil

  • Average UV index in September: 7

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

Average cloud cover in September
Palmácia, Brazil

  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Palmácia, Brazil

  • Average visibility in September: 10km

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