September weather forecastOlímpia, Brazil

September

Weather in September

The first month of the spring, September, is a hot month in Olímpia, Brazil, with an average temperature varying between 19.2°C (66.6°F) and 32.2°C (90°F).

Temperature

The warmest time of the year is September, with temperatures averaging a high of 32.2°C (90°F) and a low of 19.2°C (66.6°F).

Heat index

The average heat index in September is estimated at a very hot 35°C (95°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

August and September, with an average relative humidity of 51%, are the least humid months in Olímpia.

Rainfall

In Olímpia, Brazil, in September, it is raining for 8.4 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Olímpia, Brazil, there are 210.1 rainfall days, and 1237mm (48.7") of precipitation is accumulated.

Daylight

The average length of the day in September in Olímpia is 11h and 59min.
On the first day of September in Olímpia, sunrise is at 06:23 and sunset at 18:07. On the last day of the month, sunrise is at 05:56 and sunset at 18:13 -03.

Sunshine

In September, the average sunshine is 9.5h.

UV index

January, March through December, with an average maximum UV index of 6, are months with the highest UV index in Olímpia. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

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

Frequently asked questions

The warmest temperatures occur during September, when averages reach a peak of 32.2°C (90°F) and a low of 19.2°C (66.6°F).

In Olímpia, in September, the average high-temperature is 32.2°C (90°F), and the average low-temperature is 19.2°C (66.6°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 35°C (95°F).

August and September, with an average relative humidity of 51%, are the least humid months.

In Olímpia, the average relative humidity in September is 51%.

In Olímpia, Brazil, in September, during 8.4 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

In September, the average day length in Olímpia is 11h and 59min.

In September, on the first day of the month, sunrise is at 06:23 and sunset at 18:07. On the last day of the month, in Olímpia, sunrise is at 05:56 and sunset at 18:13 -03.

In September, the average sunshine duration in Olímpia, Brazil, is 9.5h.

The months with the highest UV index in Olímpia, Brazil, are January, March through December, with an average maximum UV index of 6.

The average daily maximum UV index in September in Olímpia is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to 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

29.6°C

32.2°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.1km/h

10.8km/h

10.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

26.7

19.2

11.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Olímpia, Brazil

Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is September (32.2°C).
The month with the lowest average high temperature is June (25.3°C).

Average low temperature in September: 19.2°C

The month with the highest average low temperature is December (20.8°C).
The coldest month (with the lowest average low temperature) is June (15.6°C).

Average pressure in September
Olímpia, Brazil

Average pressure in September: 1014.2mbar

The month with the highest atmospheric pressure is July (1018.2mbar).
The months with the lowest atmospheric pressure are November and December (1010.4mbar).

Average wind speed in September
Olímpia, Brazil

Average wind speed in September: 10.1km/h

The windiest months (with the highest average wind speed) are August and September (10.1km/h).
The calmest month (with the lowest average wind speed) is February (7km/h).

Average humidity in September
Olímpia, Brazil

Average humidity in September: 51%

The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in September
Olímpia, Brazil

Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is January (214mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in September
Olímpia, Brazil

Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is January (29.2 days).
The month with the least rainy days is August (3.7 days).

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

Average daylight in September: 12h and 0min

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

Average sunshine in September: 9h and 30min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

Average sunshine days in September
Olímpia, Brazil

Average sunshine days in September: 19.2 days

The month with the most sunshine days is August (26.7 days).
The month with the least sunshine days is December (1.5 days).

Average UV index in September
Olímpia, Brazil

Average UV index in September: 6

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