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
Ribeirão Branco's entry into September measures an average high-temperature of a warm 24.6°C (76.3°F), closely parallel to the preceding month. Throughout September, the average low-temperature dips to a moderate 13.5°C (56.3°F).Humidity
September is the least humid month, with an average relative humidity of 77%.Rainfall
In Ribeirão Branco, in September, during 10.2 rainfall days, 52mm (2.05") of precipitation is typically accumulated. In Ribeirão Branco, during the entire year, the rain falls for 175 days and collects up to 751mm (29.57") of precipitation.Daylight
In September, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 06:25 and sunset at 18:04. On the last day of September, sunrise is at 05:55 and sunset at 18:14 -03.
Sunshine
In Ribeirão Branco, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during September leads to these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the least humid month?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Ribeirão Branco have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Ribeirão Branco have in September?
How high is the UV index in September?
Average temperature in September
Ribeirão Branco, Brazil
- Average high temperature in September: 24.6°C
The warmest month (with the highest average high temperature) is December (26.7°C).
The month with the lowest average high temperature is June (19.9°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is January (18.2°C).
The coldest month (with the lowest average low temperature) is July (11.4°C).
Average pressure in September
Ribeirão Branco, Brazil
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in September
Ribeirão Branco, Brazil
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is November (9.4km/h).
The calmest month (with the lowest average wind speed) is June (7.1km/h).
Average humidity in September
Ribeirão Branco, Brazil
- Average humidity in September: 77%
The months with the highest relative humidity are February, May and June (88%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Ribeirão Branco, Brazil
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is January (121mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in September
Ribeirão Branco, Brazil
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is January (21.4 days).
The month with the least rainy days is August (8 days).
Average daylight in September /
Average sunshine in September
Ribeirão Branco, 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 1min
The month with the most sunshine is August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Ribeirão Branco, Brazil
- Average sunshine days in September: 16 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Ribeirão Branco, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, March, October 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
Ribeirão Branco, Brazil
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Ribeirão Branco, Brazil
- Average visibility in September: 8km
The months with the highest visibility are August and September (8km).
The months with the lowest visibility are January, February, March, April, May and June (6km).
