September weather forecastSerro, Brazil
September
Weather in September
September, the first month of the spring in Serro, is also a moderately hot month, with an average temperature ranging between max 26.3°C (79.3°F) and min 14.4°C (57.9°F).Temperature
September, with its high-temperature average of 26.3°C (79.3°F) and a low-temperature average of 14.4°C (57.9°F), is the warmest month.Humidity
The least humid month is September, with an average relative humidity of 69%.Rainfall
In September, the rain falls for 9.2 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Serro, during the entire year, the rain falls for 215.7 days and collects up to 1317mm (51.85") of precipitation.Daylight
In September, the average length of the day in Serro is 12h and 0min.On the first day of the month, sunrise is at 06:00 and sunset at 17:46. On the last day of September, sunrise is at 05:35 and sunset at 17:51 -03.
Sunshine
The month with the most sunshine in Serro is September, with an average of 9.2h of sunshine.UV index
The months with the highest UV index in Serro are January and September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 6 in September transforms into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Serro, Brazil
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is September (26.3°C).
The month with the lowest average high temperature is June (21.9°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is December (17.6°C).
The coldest month (with the lowest average low temperature) is July (12.3°C).
Average pressure in September
Serro, Brazil
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.7mbar).
Average wind speed in September
Serro, Brazil
- Average wind speed in September: 9.7km/h
The windiest months (with the highest average wind speed) are September and October (9.7km/h).
The calmest months (with the lowest average wind speed) are March and May (7km/h).
Average humidity in September
Serro, Brazil
- Average humidity in September: 69%
The months with the highest relative humidity are March and April (87%).
The month with the lowest relative humidity is September (69%).
Average rainfall in September
Serro, Brazil
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (250mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in September
Serro, Brazil
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is December (27.9 days).
The month with the least rainy days is August (7.6 days).
Average daylight in September /
Average sunshine in September
Serro, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in September
Serro, Brazil
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is August (20.2 days).
The month with the least sunshine days is December (1.8 days).
Average UV index in September
Serro, Brazil
- Average UV index in September: 6
The months with the highest UV index are January and September (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, August, October, November and December (UV index 5).
Average cloud cover in September
Serro, Brazil
- Average cloud cover in September: 29
The months with the most cloud cover are March and April (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Serro, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August, September and October (9km).
The month with the lowest visibility is April (6km).





