September weather forecastPenápolis, Brazil
September
Weather in September
September, the first month of the spring in Penápolis, is a hot month, with an average temperature varying between 18.5°C (65.3°F) and 31.3°C (88.3°F).Temperature
September brings an average high-temperature of a tropical 31.3°C (88.3°F), nearly identical to the preceding month. Penápolis's temperature exhibits a stark contrast from daytime to nighttime, averaging lows of 18.5°C (65.3°F) in September.Heat index
September's mean heat index is evaluated at a hot 34°C (93.2°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. 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 Penápolis, the average relative humidity in September is 56%.Rainfall
In Penápolis, in September, it is raining for 8.3 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, there are 191.8 rainfall days, and 1152mm (45.35") of precipitation is accumulated.Daylight
The average length of the day in September in Penápolis is 11h and 59min.On the first day of September in Penápolis, Brazil, sunrise is at 06:28 and sunset at 18:11. On the last day of the month, sunrise is at 06:01 and sunset at 18:18 -03.
Sunshine
In September, the average sunshine in Penápolis is 9.2h.UV index
The months with the highest UV index in Penápolis are January through April, June through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Penápolis, Brazil
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is June (24.6°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is December (21.3°C).
The coldest months (with the lowest average low temperature) are June and July (15.5°C).
Average pressure in September
Penápolis, Brazil
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The months with the lowest atmospheric pressure are November and December (1009.9mbar).
Average wind speed in September
Penápolis, Brazil
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is August (10.8km/h).
The calmest month (with the lowest average wind speed) is February (7.3km/h).
Average humidity in September
Penápolis, Brazil
- Average humidity in September: 56%
The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Penápolis, Brazil
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is January (198mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in September
Penápolis, Brazil
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is January (28.3 days).
The months with the least rainy days are July and August (4.1 days).
Average daylight in September /
Average sunshine in September
Penápolis, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
Penápolis, Brazil
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is January (2.1 days).
Average UV index in September
Penápolis, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, June, July, August, September, October, November and December (UV index 6).
The month with the lowest UV index is May (UV index 5).
Average cloud cover in September
Penápolis, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Penápolis, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May and December (8km).





