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 records an average high-temperature of a warm 23.5°C (74.3°F), indicating a minor variation from the preceding month. During September, Santa Rosa records an average temperature of 13.1°C (55.6°F) at night.Humidity
In September, the average relative humidity is 81%.Rainfall
In Santa Rosa, in September, during 11.8 rainfall days, 74mm (2.91") of precipitation is typically accumulated. In Santa Rosa, during the entire year, the rain falls for 165.6 days and collects up to 1213mm (47.76") of precipitation.Daylight
In September, the average length of the day in Santa Rosa, Brazil, is 11h and 56min.On the first day of the month, sunrise is at 06:50 and sunset at 18:24. On the last day of September, in Santa Rosa, sunrise is at 06:17 and sunset at 18:38 -03.
Sunshine
In September, the average sunshine in Santa Rosa is 7.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the average September temperature in Santa Rosa?
What is the average humidity in September in Santa Rosa?
How much does it rain in Santa Rosa in September?
What is the average length of the day in September in Santa Rosa?
When are sunrise and sunset in September in Santa Rosa?
How many hours of sunshine does Santa Rosa have in September?
How high is the UV index in September in Santa Rosa?
Average temperature in September
Santa Rosa, Brazil
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is January (30.3°C).
The month with the lowest average high temperature is July (18.7°C).
- Average low temperature in September: 13.1°C
The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is July (10.2°C).
Average pressure in September
Santa Rosa, Brazil
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
Santa Rosa, Brazil
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is August (10km/h).
The calmest month (with the lowest average wind speed) is March (7.7km/h).
Average humidity in September
Santa Rosa, Brazil
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (87%).
The months with the lowest relative humidity are November and December (74%).
Average rainfall in September
Santa Rosa, Brazil
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is October (140mm).
The driest month (with the least rainfall) is August (63mm).
Average rainfall days in September
Santa Rosa, Brazil
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is January (17.7 days).
The month with the least rainy days is August (10.9 days).
Average daylight in September /
Average sunshine in September
Santa Rosa, Brazil
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 7h and 5min
The months with the most sunshine are January and November (Average sunshine: 8h and 42min).
The month with the least sunshine is June (Average sunshine: 6h and 54min).
Average sunshine days in September
Santa Rosa, Brazil
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is August (18.5 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Santa Rosa, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, October, 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
Santa Rosa, Brazil
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 44).
The month with the least cloud cover is November (Cloud cover 28).
Average visibility in September
Santa Rosa, Brazil
- Average visibility in September: 8km
The months with the highest visibility are November and December (9km).
The months with the lowest visibility are June and July (7km).
Santa Rosa, Brazil
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