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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).





