September weather forecastPiracuruca, Brazil
September
Weather in September
The first month of the spring, September, is still a torrid month in Piracuruca, Brazil, with an average temperature fluctuating between 36.6°C (97.9°F) and 22.9°C (73.2°F).Temperature
With the transition into September, Piracuruca notes an average high-temperature of a still torrid 36.6°C (97.9°F), closely resembling August. With a notable difference from peak temperatures, an average of 22.9°C (73.2°F) marks the nights in September.Heat index
For September, the heat index is estimated at a blistering 44°C (111.2°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. 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 particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
September is the least humid month in Piracuruca, with an average relative humidity of 49%.Rainfall
The month with the least rainfall is September, when the rain falls for 5.1 days and typically collects 4mm (0.16") of precipitation.Daylight
The average length of the day in September in Piracuruca is 12h and 5min.On the first day of the month, sunrise is at 05:45 and sunset at 17:47. On the last day of September, in Piracuruca, Brazil, sunrise is at 05:32 and sunset at 17:40 -03.
Sunshine
In September, the average sunshine is 9.8h.UV index
The months with the highest UV index are January, March through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Piracuruca, Brazil
- Average high temperature in September: 36.6°C
The warmest month (with the highest average high temperature) is October (37.1°C).
The month with the lowest average high temperature is April (31.2°C).
- Average low temperature in September: 22.9°C
The month with the highest average low temperature is November (24.4°C).
The coldest month (with the lowest average low temperature) is June (21.7°C).
Average pressure in September
Piracuruca, Brazil
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is July (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in September
Piracuruca, Brazil
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is September (12.2km/h).
The calmest month (with the lowest average wind speed) is April (7.4km/h).
Average humidity in September
Piracuruca, Brazil
- Average humidity in September: 49%
The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is September (49%).
Average rainfall in September
Piracuruca, Brazil
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is March (260mm).
The driest month (with the least rainfall) is September (4mm).
Average rainfall days in September
Piracuruca, Brazil
- Average rainfall days in September: 5.1 days
The month with the highest number of rainy days is March (27.8 days).
The month with the least rainy days is September (5.1 days).
Average daylight in September /
Average sunshine in September
Piracuruca, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is January (Average sunshine: 10h and 6min).
The month with the least sunshine is April (Average sunshine: 7h and 54min).
Average sunshine days in September
Piracuruca, Brazil
- Average sunshine days in September: 22.9 days
The month with the most sunshine days is September (22.9 days).
The month with the least sunshine days is April (1.9 days).
Average UV index in September
Piracuruca, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover in September
Piracuruca, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Piracuruca, Brazil
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are March and April (8km).





