September weather forecastBotumirim, Brazil

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Botumirim, Brazil, with an average temperature fluctuating between 29.1°C (84.4°F) and 15.9°C (60.6°F).

Temperature

With the start of September, Botumirim measures an average high-temperature of a still moderately hot 29.1°C (84.4°F), not significantly differing from August's 26.6°C (79.9°F). Botumirim records a marked daily temperature contrast, with an average low-temperature of 15.9°C (60.6°F) during the nights of September.

Heat index

For most parts of September, the heat index is evaluated at a tropical 32°C (89.6°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

The least humid month is September, with an average relative humidity of 65%.

Rainfall

In September, the rain falls for 7.2 days. Throughout September, 13mm (0.51") of precipitation is accumulated. In Botumirim, during the entire year, the rain falls for 186.1 days and collects up to 862mm (33.94") of precipitation.

Daylight

In September, the average length of the day is 12h and 1min.
On the first day of the month, sunrise is at 05:57 and sunset at 17:45. On the last day of September, sunrise is at 05:34 and sunset at 17:49 -03.

Sunshine

The month with the most sunshine is September, with an average of 8.7h of sunshine.

UV index

The months with the highest UV index are January through March, August through October and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during September translates into the following guidance:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Updated: Aug 12, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Botumirim, the average high-temperature is 29.1°C (84.4°F), and the average low-temperature is 15.9°C (60.6°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 32°C (89.6°F).

September is the least humid month, with an average relative humidity of 65%.

In September, the average relative humidity is 65%.

In Botumirim, Brazil, during September, the rain falls for 7.2 days and regularly aggregates up to 13mm (0.51") of precipitation.

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

In September, on the first day of the month, sunrise is at 05:57 and sunset at 17:45. On the last day of the month, sunrise is at 05:34 and sunset at 17:49 -03.

The month with the most sunshine is September, with an average of 8.7h of sunshine.

In Botumirim, the average sunshine duration in September is 8.7h.

January through March, August through October and December, with an average maximum UV index of 6, are months with the highest UV index.

In Botumirim, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

26.6°C

29.1°C

29.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.7km/h

9.2km/h

9.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

20.7

17.5

11.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Botumirim, Brazil

Average high temperature in September: 29.1°C

The warmest month (with the highest average high temperature) is October (29.2°C).
The month with the lowest average high temperature is June (24.4°C).

Average low temperature in September: 15.9°C

The month with the highest average low temperature is December (18.5°C).
The coldest month (with the lowest average low temperature) is July (13.6°C).

Average pressure in September
Botumirim, Brazil

Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1013.1mbar).

Average wind speed in September
Botumirim, Brazil

Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is September (8.7km/h).
The calmest months (with the lowest average wind speed) are March and May (5.8km/h).

Average humidity in September
Botumirim, Brazil

Average humidity in September: 65%

The month with the highest relative humidity is April (87%).
The month with the lowest relative humidity is September (65%).

Average rainfall in September
Botumirim, Brazil

Average rainfall in September: 13mm

The wettest months (with the highest rainfall) are November and December (163mm).
The driest month (with the least rainfall) is July (5mm).

Average rainfall days in September
Botumirim, Brazil

Average rainfall days in September: 7.2 days

The month with the highest number of rainy days is November (23.5 days).
The month with the least rainy days is August (6 days).

Average daylight in September /
Average sunshine in September
Botumirim, 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 6min).

Average sunshine in September: 8h and 42min

The month with the most sunshine is September (Average sunshine: 8h and 42min).
The months with the least sunshine are April and November (Average sunshine: 6h and 36min).

Average sunshine days in September
Botumirim, Brazil

Average sunshine days in September: 17.5 days

The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is November (4.8 days).

Average UV index in September
Botumirim, Brazil

Average UV index in September: 6

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

Average cloud cover in September
Botumirim, Brazil

Average cloud cover in September: 34

The month with the most cloud cover is April (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in September
Botumirim, Brazil

Average visibility in September: 9km

The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are January, April and May (6km).