September weather forecastSão Roque, Brazil
September
Weather in September
The first month of the spring, September, is a warm month in São Roque, Brazil, with an average temperature ranging between max 24.9°C (76.8°F) and min 14.5°C (58.1°F).Temperature
The arrival of September marks a slight shift to an average high-temperature of a warm 24.9°C (76.8°F) from August's 22.9°C (73.2°F). Throughout the month of September, São Roque observes an average nighttime temperature of 14.5°C (58.1°F).Humidity
The months with the lowest humidity in São Roque are August and September, with an average relative humidity of 74%.Rainfall
In São Roque, in September, during 12.9 rainfall days, 56mm (2.2") of precipitation is typically accumulated. Throughout the year, in São Roque, there are 208.2 rainfall days, and 1109mm (43.66") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 58min.On the first day of September in São Roque, sunrise is at 06:18 and sunset at 17:58. On the last day of the month, sunrise is at 05:49 and sunset at 18:07 -03.
Sunshine
The month with the most sunshine is September, with an average of 8.5h of sunshine.UV index
The months with the lowest UV index in São Roque are February, April through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
São Roque, Brazil
- Average high temperature in September: 24.9°C
The warmest month (with the highest average high temperature) is December (26.6°C).
The month with the lowest average high temperature is June (20.4°C).
- Average low temperature in September: 14.5°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (12.5°C).
Average pressure in September
São Roque, Brazil
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in September
São Roque, Brazil
- Average wind speed in September: 10.5km/h
The windiest months (with the highest average wind speed) are October and November (10.9km/h).
The calmest month (with the lowest average wind speed) is February (8.3km/h).
Average humidity in September
São Roque, Brazil
- Average humidity in September: 74%
The months with the highest relative humidity are January, March, April and May (86%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in September
São Roque, Brazil
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is January (203mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in September
São Roque, Brazil
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is January (24.8 days).
The month with the least rainy days is August (8.3 days).
Average daylight in September /
Average sunshine in September
São Roque, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is September (Average sunshine: 8h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in September
São Roque, Brazil
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is August (19.1 days).
The month with the least sunshine days is January (4.8 days).
Average UV index in September
São Roque, Brazil
- Average UV index in September: 5
The months with the highest UV index are January and March (UV index 6).
The months with the lowest UV index are February, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
São Roque, Brazil
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
São Roque, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are January, February, March, April and May (7km).
