September weather forecastSério, Brazil
September
Weather in September
September, the first month of the spring in Sério, is still a pleasant month, with an average temperature varying between 12.3°C (54.1°F) and 21.4°C (70.5°F).Temperature
The transition into September notes an average high-temperature of a still pleasant 21.4°C (70.5°F), revealing a mild distinction from the 20.6°C (69.1°F) in August. An average low-temperature of 12.3°C (54.1°F) is noted during the month of September.Humidity
The average relative humidity in September in Sério is 84%.Rainfall
In September, the rain falls for 11.9 days. Throughout September, 53mm (2.09") of precipitation is accumulated. Throughout the year, there are 148.9 rainfall days, and 783mm (30.83") of precipitation is accumulated.Daylight
In Sério, the average length of the day in September is 11h and 56min.On the first day of September, sunrise is at 06:42 and sunset at 18:14. On the last day of the month, sunrise is at 06:07 and sunset at 18:29 -03.
Sunshine
With an average of 7.2h of sunshine, September has the least sunshine of the year.UV index
In September, the average daily maximum UV index in Sério, Brazil, is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 in September translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sério, Brazil
- Average high temperature in September: 21.4°C
The warmest month (with the highest average high temperature) is February (29.5°C).
The month with the lowest average high temperature is July (18°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is February (18.6°C).
The coldest month (with the lowest average low temperature) is July (9.2°C).
Average pressure in September
Sério, Brazil
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is July (1019.9mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in September
Sério, Brazil
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is August (10.7km/h).
The calmest month (with the lowest average wind speed) is April (8.9km/h).
Average humidity in September
Sério, Brazil
- Average humidity in September: 84%
The months with the highest relative humidity are May, June and July (85%).
The month with the lowest relative humidity is December (76%).
Average rainfall in September
Sério, Brazil
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is October (96mm).
The driest month (with the least rainfall) is February (44mm).
Average rainfall days in September
Sério, Brazil
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is January (14.8 days).
The month with the least rainy days is August (10.3 days).
Average daylight in September /
Average sunshine in September
Sério, Brazil
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is December (Average sunshine: 8h and 30min).
The month with the least sunshine is September (Average sunshine: 7h and 12min).
Average sunshine days in September
Sério, Brazil
- Average sunshine days in September: 15.4 days
The months with the most sunshine days are July and August (18.8 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Sério, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in September
Sério, Brazil
- Average cloud cover in September: 41
The months with the most cloud cover are September and October (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 33).
Average visibility in September
Sério, Brazil
- Average visibility in September: 8km
The months with the highest visibility are June, July, August and December (9km).
The months with the lowest visibility are January, February, March, April, May, September, October and November (8km).





