September weather forecastBarra do Rocha, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Barra do Rocha, Brazil, with an average temperature fluctuating between 26.9°C (80.4°F) and 16.8°C (62.2°F).Temperature
The average high-temperature for September is a still moderately hot 26.9°C (80.4°F), closely aligning with the temperature of the preceding month. Barra do Rocha sees an average low-temperature of 16.8°C (62.2°F) during September.Humidity
In September, the average relative humidity is 83%.Rainfall
September is the month with the least rainfall in Barra do Rocha. Rain falls for 20 days and accumulates 27mm (1.06") of precipitation.Daylight
The average length of the day in September is 12h and 2min.On the first day of the month, sunrise is at 05:42 and sunset at 17:33. On the last day of September, sunrise is at 05:21 and sunset at 17:34 -03.
Sunshine
In September, the average sunshine is 5.7h.UV index
January through May, September through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barra do Rocha, Brazil
- Average high temperature in September: 26.9°C
The warmest months (with the highest average high temperature) are February and March (30.8°C).
The month with the lowest average high temperature is July (25.6°C).
- Average low temperature in September: 16.8°C
The month with the highest average low temperature is March (19.8°C).
The coldest month (with the lowest average low temperature) is August (16.3°C).
Average pressure in September
Barra do Rocha, Brazil
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is December (1013mbar).
Average wind speed in September
Barra do Rocha, Brazil
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is October (7.3km/h).
The calmest month (with the lowest average wind speed) is April (6km/h).
Average humidity in September
Barra do Rocha, Brazil
- Average humidity in September: 83%
The months with the highest relative humidity are June and July (87%).
The month with the lowest relative humidity is February (81%).
Average rainfall in September
Barra do Rocha, Brazil
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is March (69mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in September
Barra do Rocha, Brazil
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is February (16.2 days).
Average daylight in September /
Average sunshine in September
Barra do Rocha, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 5h and 42min
The months with the most sunshine are January and February (Average sunshine: 8h and 6min).
The months with the least sunshine are June and July (Average sunshine: 4h and 42min).
Average sunshine days in September
Barra do Rocha, Brazil
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is January (8.3 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in September
Barra do Rocha, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, September, October, November and December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 5).
Average cloud cover in September
Barra do Rocha, Brazil
- Average cloud cover in September: 67
The months with the most cloud cover are May, June and July (Cloud cover 72).
The months with the least cloud cover are January and February (Cloud cover 63).
Average visibility in September
Barra do Rocha, Brazil
- Average visibility in September: 6km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6km).
The month with the lowest visibility is July (5km).





