September weather forecastCaatiba, Brazil

September

Weather in September

September, the first month of the spring in Caatiba, is also a moderately hot month, with an average temperature varying between 27.1°C (80.8°F) and 16.6°C (61.9°F).

Temperature

Caatiba's September average high-temperature settles at a still warm 27.1°C (80.8°F), showing a near match with the preceding month. Caatiba experiences an average temperature drop to a refreshing 16.6°C (61.9°F) during September nights.

Heat index

September's mean heat index is computed to be a hot 30°C (86°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

September is the least humid month in Caatiba, with an average relative humidity of 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 15.7 days and typically collects 19mm (0.75") of precipitation.

Daylight

In Caatiba, Brazil, the average length of the day in September is 12h and 1min.
On the first day of September, sunrise is at 05:46 and sunset at 17:36. On the last day of the month, sunrise is at 05:24 and sunset at 17:38 -03.

Sunshine

In September, the average sunshine in Caatiba is 6.2h.

UV index

January through April, August through December, with an average maximum UV index of 6, are months with the highest UV index in Caatiba. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

During September, Caatiba experiences an average high-temperature of 27.1°C (80.8°F) and a low-temperature of 16.6°C (61.9°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in September is computed to be 30°C (86°F).

With an average relative humidity of 79%, September is the least humid month.

In September, the average relative humidity is 79%.

September is the month with the least rainfall in Caatiba. Rain falls for 15.7 days and accumulates 19mm (0.75") of precipitation.

In September, in Caatiba, Brazil, the rain falls for 15.7 days. Throughout September, 19mm (0.75") of precipitation is accumulated.

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

In September, on the first day of the month, sunrise is at 05:46 and sunset at 17:36. On the last day of the month, sunrise is at 05:24 and sunset at 17:38 -03.

In Caatiba, Brazil, the average sunshine duration in September is 6.2h.

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

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Caatiba, Brazil

  • Average high temperature in September: 27.1°C

The warmest month (with the highest average high temperature) is February (29.8°C).
The month with the lowest average high temperature is July (24.8°C).

  • Average low temperature in September: 16.6°C

The month with the highest average low temperature is March (19.3°C).
The coldest month (with the lowest average low temperature) is August (15.4°C).

Average pressure in September
Caatiba, Brazil

  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1013.1mbar).

Average wind speed in September
Caatiba, Brazil

  • Average wind speed in September: 7.9km/h

The windiest month (with the highest average wind speed) is October (8km/h).
The calmest months (with the lowest average wind speed) are March and April (5.6km/h).

Average humidity in September
Caatiba, Brazil

  • Average humidity in September: 79%

The month with the highest relative humidity is May (87%).
The month with the lowest relative humidity is September (79%).

Average rainfall in September
Caatiba, Brazil

  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is September (19mm).

Average rainfall days in September
Caatiba, Brazil

  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (12.7 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).

  • Average sunshine in September: 6h and 12min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The month with the least sunshine is June (Average sunshine: 4h and 48min).

Average sunshine days in September
Caatiba, Brazil

  • Average sunshine days in September: 7.2 days

The months with the most sunshine days are January and February (12.1 days).
The month with the least sunshine days is July (5.3 days).

Average UV index in September
Caatiba, Brazil

  • Average UV index in September: 6

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

Average cloud cover in September
Caatiba, Brazil

  • Average cloud cover in September: 60

The month with the most cloud cover is May (Cloud cover 70).
The month with the least cloud cover is September (Cloud cover 60).

Average visibility in September
Caatiba, Brazil

  • Average visibility in September: 6km

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