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
Rio Formoso's transition from August to September introduces an average high-temperature of a still moderately hot 26.4°C (79.5°F), marking an insignificant variation from the 26.1°C (79°F). A slight dip in temperature to an agreeable 22.8°C (73°F) marks the average nights in Rio Formoso during September.Humidity
In Rio Formoso, the average relative humidity in September is 80%.Rainfall
In Rio Formoso, in September, it is raining for 20.9 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, in Rio Formoso, there are 250.9 rainfall days, and 879mm (34.61") of precipitation is accumulated.Daylight
In Rio Formoso, the average length of the day in September is 12h and 4min.On the first day of September in Rio Formoso, sunrise is at 05:21 and sunset at 17:19. On the last day of the month, sunrise is at 05:05 and sunset at 17:15 -03.
Sunshine
In September, the average sunshine is 7.8h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the temperature in September in Rio Formoso?
What is the average humidity in September in Rio Formoso?
How many days does it rain in September in Rio Formoso?
What is the average length of the day in September in Rio Formoso?
What time are sunrise and sunset in September in Rio Formoso?
How many hours of sunshine does Rio Formoso have in September?
What is the UV index intensity in September in Rio Formoso?
Average temperature in September
Rio Formoso, Brazil
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is March (29.6°C).
The month with the lowest average high temperature is July (26°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is March (25.1°C).
The coldest month (with the lowest average low temperature) is August (22.4°C).
Average pressure in September
Rio Formoso, Brazil
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is August (1016.9mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).
Average wind speed in September
Rio Formoso, Brazil
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is September (16km/h).
The calmest month (with the lowest average wind speed) is April (11.3km/h).
Average humidity in September
Rio Formoso, Brazil
- Average humidity in September: 80%
The months with the highest relative humidity are June and July (82%).
The months with the lowest relative humidity are March and December (76%).
Average rainfall in September
Rio Formoso, Brazil
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is May (136mm).
The driest month (with the least rainfall) is November (26mm).
Average rainfall days in September
Rio Formoso, Brazil
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is November (15.7 days).
Average daylight in September /
Average sunshine in September
Rio Formoso, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is March (Average sunshine: 8h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 54min).
Average sunshine days in September
Rio Formoso, Brazil
- Average sunshine days in September: 3 days
The month with the most sunshine days is March (7 days).
The month with the least sunshine days is July (2.1 days).
Average UV index in September
Rio Formoso, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Rio Formoso, Brazil
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 50).
The month with the least cloud cover is March (Cloud cover 38).
Average visibility in September
Rio Formoso, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Rio Formoso, Brazil
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