September weather forecastComercinho, Brazil

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Comercinho, Brazil, with an average temperature ranging between min 15.9°C (60.6°F) and max 28.9°C (84°F).

Temperature

The advent of September brings an average high-temperature of a still warm 28.9°C (84°F), exhibiting minor difference from the previous month. Comercinho in September observes a sharp transition from the daytime heat, falling to an average low of 15.9°C (60.6°F).

Heat index

The heat index value during September is evaluated at a tropical 31°C (87.8°F). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

With an average relative humidity of 64%, September is the least humid month in Comercinho, Brazil.

Rainfall

In Comercinho, during September, the rain falls for 7.5 days and regularly aggregates up to 14mm (0.55") of precipitation. In Comercinho, during the entire year, the rain falls for 192.4 days and collects up to 758mm (29.84") of precipitation.

Daylight

In September, the average length of the day in Comercinho is 12h and 1min.
On the first day of the month, sunrise is at 05:52 and sunset at 17:41. On the last day of September, sunrise is at 05:29 and sunset at 17:44 -03.

Sunshine

The month with the most sunshine is September, with an average of 8.8h of sunshine.

UV index

The months with the highest UV index are January through March, August through November, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in September, in Comercinho, is 28.9°C (84°F), while the low-temperature averages to 15.9°C (60.6°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 31°C (87.8°F).

With an average relative humidity of 64%, September is the least humid month in Comercinho.

In September, the average relative humidity in Comercinho, Brazil, is 64%.

In September, in Comercinho, Brazil, the rain falls for 7.5 days. Throughout September, 14mm (0.55") of precipitation is accumulated.

In Comercinho, Brazil, the average day length in September is 12h and 1min.

In September, on the first day of the month, sunrise is at 05:52 and sunset at 17:41. On the last day of the month, in Comercinho, sunrise is at 05:29 and sunset at 17:44 -03.

September has the most sunshine of the year in Comercinho, Brazil, with an average of 8.8h of sunshine.

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

The months with the highest UV index are January through March, August through November, with an average maximum UV index of 6.

The average daily maximum UV index in September in Comercinho, Brazil, is 6. A UV Index reading 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

26.3°C

28.9°C

29.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.2km/h

10.7km/h

10.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

16.9

16.2

12.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Comercinho, Brazil

Average high temperature in September: 28.9°C

The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is June (24.1°C).

Average low temperature in September: 15.9°C

The months with the highest average low temperature are November and December (18.2°C).
The coldest month (with the lowest average low temperature) is July (14.2°C).

Average pressure in September
Comercinho, Brazil

Average pressure in September: 1017.5mbar

The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1013.1mbar).

Average wind speed in September
Comercinho, Brazil

Average wind speed in September: 10.2km/h

The windiest month (with the highest average wind speed) is September (10.2km/h).
The calmest month (with the lowest average wind speed) is March (6.6km/h).

Average humidity in September
Comercinho, Brazil

Average humidity in September: 64%

The month with the highest relative humidity is April (86%).
The month with the lowest relative humidity is September (64%).

Average rainfall in September
Comercinho, Brazil

Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is November (139mm).
The driest month (with the least rainfall) is July (6mm).

Average rainfall days in September
Comercinho, Brazil

Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is November (22.4 days).
The month with the least rainy days is September (7.5 days).

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

Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

Average sunshine in September: 8h and 48min

The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is April (Average sunshine: 6h and 48min).

Average sunshine days in September
Comercinho, Brazil

Average sunshine days in September: 16.2 days

The month with the most sunshine days is August (16.9 days).
The month with the least sunshine days is November (5.9 days).

Average UV index in September
Comercinho, Brazil

Average UV index in September: 6

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