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
September
Weather in September
Temperature
The average high-temperature is a pleasant 20.9°C (69.6°F) in September, hardly different from the 19.2°C (66.6°F) recorded in August. Nighttime temperatures in Santana da Boa Vista, Brazil, consistently average a fresh 10.9°C (51.6°F) during September.Humidity
The average relative humidity in September is 82%.Rainfall
In Santana da Boa Vista, during September, the rain falls for 12.4 days and regularly aggregates up to 76mm (2.99") of precipitation. Throughout the year, there are 151.2 rainfall days, and 1030mm (40.55") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 55min.On the first day of September, sunrise is at 06:47 and sunset at 18:17. On the last day of the month, sunrise is at 06:10 and sunset at 18:33 -03.
Sunshine
The average sunshine in September in Santana da Boa Vista is 6.9h.UV index
April through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - Preventing sunburn is recommended. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Santana da Boa Vista in September?
What is the average humidity in September in Santana da Boa Vista?
How many days does it rain in September in Santana da Boa Vista?
How many hours of daylight does Santana da Boa Vista have in September?
When is the sunrise / sunset in September in Santana da Boa Vista?
How long on average sun shines in September in Santana da Boa Vista?
What are the months with the lowest UV index in Santana da Boa Vista?
What is the UV index reading in September in Santana da Boa Vista?
Average temperature in September
Santana da Boa Vista, Brazil
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is February (29.9°C).
The month with the lowest average high temperature is July (16.5°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is February (18.4°C).
The coldest month (with the lowest average low temperature) is July (7.8°C).
Average pressure in September
Santana da Boa Vista, Brazil
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Santana da Boa Vista, Brazil
- Average wind speed in September: 14.6km/h
The windiest month (with the highest average wind speed) is September (14.6km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).
Average humidity in September
Santana da Boa Vista, Brazil
- Average humidity in September: 82%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is December (70%).
Average rainfall in September
Santana da Boa Vista, Brazil
- Average rainfall in September: 76mm
The wettest month (with the highest rainfall) is January (112mm).
The driest month (with the least rainfall) is August (61mm).
Average rainfall days in September
Santana da Boa Vista, Brazil
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is January (16.4 days).
The month with the least rainy days is June (10.8 days).
Average daylight in September /
Average sunshine in September
Santana da Boa Vista, Brazil
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are November and December (Average sunshine: 8h and 18min).
The month with the least sunshine is May (Average sunshine: 6h and 42min).
Average sunshine days in September
Santana da Boa Vista, Brazil
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are June and July (18.1 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Santana da Boa Vista, Brazil
- Average UV index in September: 4
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover in September
Santana da Boa Vista, Brazil
- Average cloud cover in September: 43
The month with the most cloud cover is May (Cloud cover 44).
The month with the least cloud cover is November (Cloud cover 32).
Average visibility in September
Santana da Boa Vista, Brazil
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (9km).
The months with the lowest visibility are May and July (8km).
