Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September tends to be the warmest month, with temperatures averaging a daily high of 31.1°C (88°F) and a low of 17.9°C (64.2°F).Heat index
For most parts of September, the heat index is computed to be a tropical 34°C (93.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
With an average relative humidity of 54%, September is the least humid month in Serrana.Rainfall
In Serrana, in September, during 10.4 rainfall days, 45mm (1.77") of precipitation is typically accumulated. In Serrana, during the entire year, the rain falls for 221 days and collects up to 1294mm (50.94") of precipitation.Daylight
In September, the average length of the day is 11h and 59min.On the first day of September, sunrise is at 06:18 and sunset at 18:01. On the last day of the month, sunrise is at 05:51 and sunset at 18:08 -03.
Sunshine
With an average of 9.4h of sunshine, September has the most sunshine of the year.UV index
The months with the highest UV index are January, March, July through November, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are the warmest months in Serrana?
How hot is September in Serrana?
What is the least humid month in Serrana?
What is the average humidity in September in Serrana?
How much does it rain in Serrana in September?
How many hours of daylight does Serrana have in September?
When are sunrise and sunset in September in Serrana?
What month has the most sunshine in Serrana?
How many hours of sunshine does Serrana have in September?
When is the highest UV index in Serrana?
How high is the UV index in September in Serrana?
Average temperature in September
Serrana, Brazil
- Average high temperature in September: 31.1°C
The warmest month (with the highest average high temperature) is September (31.1°C).
The month with the lowest average high temperature is June (24.2°C).
- Average low temperature in September: 17.9°C
The month with the highest average low temperature is December (19.9°C).
The coldest month (with the lowest average low temperature) is June (14.3°C).
Average pressure in September
Serrana, Brazil
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1011.3mbar).
Average wind speed in September
Serrana, Brazil
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is September (8.9km/h).
The calmest month (with the lowest average wind speed) is February (6.2km/h).
Average humidity in September
Serrana, Brazil
- Average humidity in September: 54%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (54%).
Average rainfall in September
Serrana, Brazil
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is January (238mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Serrana, Brazil
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is December (29.7 days).
The month with the least rainy days is August (4.6 days).
Average daylight in September /
Average sunshine in September
Serrana, 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 2min
The month with the most sunshine is September (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
Serrana, Brazil
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is December (0.5 days).
Average UV index in September
Serrana, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, March, July, August, September, October and November (UV index 6).
The months with the lowest UV index are February, April, May, June and December (UV index 5).
Average cloud cover in September
Serrana, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Serrana, 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 and May (7km).
Serrana, Brazil
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