September weather forecastFernando Prestes, Brazil
September
Weather in September
The first month of the spring, September, is a tropical month in Fernando Prestes, Brazil, with an average temperature fluctuating between 30.6°C (87.1°F) and 18.3°C (64.9°F).Temperature
September tends to be the warmest month, with temperatures averaging a daily high of 30.6°C (87.1°F) and a low of 18.3°C (64.9°F).Heat index
September's mean heat index is evaluated at a hot 33°C (91.4°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The months with the lowest humidity in Fernando Prestes are August and September, with an average relative humidity of 55%.Rainfall
In Fernando Prestes, in September, it is raining for 9.7 days, with typically 42mm (1.65") of accumulated precipitation. Throughout the year, there are 217.6 rainfall days, and 1401mm (55.16") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:23 and sunset at 18:05. On the last day of the month, sunrise is at 05:55 and sunset at 18:13 -03.
Sunshine
The months with the most sunshine are August and September, with an average of 9.3h of sunshine.UV index
The months with the highest UV index in Fernando Prestes are January, July through October, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fernando Prestes, Brazil
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is September (30.6°C).
The month with the lowest average high temperature is June (24°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is December (20.5°C).
The coldest month (with the lowest average low temperature) is June (14.8°C).
Average pressure in September
Fernando Prestes, Brazil
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is July (1018.7mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Fernando Prestes, Brazil
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is August (10.5km/h).
The calmest month (with the lowest average wind speed) is February (7.4km/h).
Average humidity in September
Fernando Prestes, Brazil
- Average humidity in September: 55%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are August and September (55%).
Average rainfall in September
Fernando Prestes, Brazil
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is January (259mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Fernando Prestes, Brazil
- Average rainfall days in September: 9.7 days
The months with the highest number of rainy days are January and December (29.5 days).
The month with the least rainy days is August (3.8 days).
Average daylight in September /
Average sunshine in September
Fernando Prestes, 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 18min
The months with the most sunshine are August and September (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Fernando Prestes, Brazil
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is August (26.6 days).
The months with the least sunshine days are February and December (1.1 days).
Average UV index in September
Fernando Prestes, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, July, August, September and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, November and December (UV index 5).
Average cloud cover in September
Fernando Prestes, Brazil
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Fernando Prestes, 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 and March (7km).
