September weather forecastPiritiba, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Piritiba, Brazil, with an average temperature ranging between max 28.2°C (82.8°F) and min 17.3°C (63.1°F).Temperature
September notes an average high-temperature of a still warm 28.2°C (82.8°F), subtly differing from August's 26.3°C (79.3°F). September nights in Piritiba observe an average temperature dip to a comfortable 17.3°C (63.1°F).Heat index
For September, the heat index is computed to be a hot 31°C (87.8°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In Piritiba, the average relative humidity in September is 71%.Rainfall
The month with the least rainfall in Piritiba is September, when the rain falls for 14.7 days and typically collects 12mm (0.47") of precipitation.Daylight
The average length of the day in September in Piritiba, Brazil, is 12h and 2min.On the first day of the month, sunrise is at 05:45 and sunset at 17:38. On the last day of September, sunrise is at 05:25 and sunset at 17:38 -03.
Sunshine
In September, the average sunshine in Piritiba is 6.3h.UV index
The months with the highest UV index in Piritiba are January through April, September through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Piritiba, Brazil
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is March (30.5°C).
The month with the lowest average high temperature is July (25.1°C).
- Average low temperature in September: 17.3°C
The month with the highest average low temperature is November (19.7°C).
The coldest month (with the lowest average low temperature) is August (16.4°C).
Average pressure in September
Piritiba, Brazil
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Piritiba, Brazil
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is September (16km/h).
The calmest month (with the lowest average wind speed) is March (11.2km/h).
Average humidity in September
Piritiba, Brazil
- Average humidity in September: 71%
The month with the highest relative humidity is June (83%).
The months with the lowest relative humidity are October and November (68%).
Average rainfall in September
Piritiba, Brazil
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is March (74mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in September
Piritiba, Brazil
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is October (14.5 days).
Average daylight in September /
Average sunshine in September
Piritiba, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is January (Average sunshine: 8h and 36min).
The month with the least sunshine is July (Average sunshine: 3h and 54min).
Average sunshine days in September
Piritiba, Brazil
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is October (11.6 days).
The month with the least sunshine days is July (6.4 days).
Average UV index in September
Piritiba, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 5).
Average cloud cover in September
Piritiba, Brazil
- Average cloud cover in September: 52
The month with the most cloud cover is June (Cloud cover 71).
The months with the least cloud cover are November and December (Cloud cover 47).
Average visibility in September
Piritiba, Brazil
- Average visibility in September: 9km
The months with the highest visibility are February, March, August, September, October, November and December (9km).
The months with the lowest visibility are January, April, May, June and July (8km).





