September weather forecastSerra, Brazil

September

Weather in September

September, the first month of the spring in Serra, is also a moderately hot month, with temperature in the range of an average high of 25.1°C (77.2°F) and an average low of 19.1°C (66.4°F).

Temperature

September's weather displays an average high-temperature of a still warm 25.1°C (77.2°F), slightly varied from August's 24.3°C (75.7°F). In Serra, the expected average low-temperature for September is a comfortable 19.1°C (66.4°F).

Humidity

The average relative humidity in September in Serra is 80%.

Rainfall

In Serra, in September, it is raining for 17 days, with typically 44mm (1.73") of accumulated precipitation. In Serra, during the entire year, the rain falls for 203 days and collects up to 871mm (34.29") of precipitation.

Daylight

The average length of the day in September in Serra is 11h and 59min.
On the first day of the month, sunrise is at 05:49 and sunset at 17:32. On the last day of September, in Serra, Brazil, sunrise is at 05:22 and sunset at 17:39 -03.

Sunshine

In September, the average sunshine in Serra is 8.1h.

UV index

July and September, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

In September, the average high-temperature and low-temperature in Serra, Brazil, are 25.1°C (77.2°F) and 19.1°C (66.4°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in March is computed to be 33°C (91.4°F).

The average relative humidity in September in Serra is 80%.

In Serra, Brazil, during September, the rain falls for 17 days and regularly aggregates up to 44mm (1.73") of precipitation.

In Serra, Brazil, the average day length in September is 11h and 59min.

In September, on the first day of the month, sunrise is at 05:49 and sunset at 17:32. On the last day of the month, in Serra, sunrise is at 05:22 and sunset at 17:39 -03.

In Serra, Brazil, the average sunshine duration in September is 8.1h.

July and September, with an average maximum UV index of 5, are months with the lowest UV index in Serra.

In Serra, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Serra, Brazil

  • Average high temperature in September: 25.1°C

The warmest month (with the highest average high temperature) is February (28.8°C).
The month with the lowest average high temperature is July (24.1°C).

  • Average low temperature in September: 19.1°C

The months with the highest average low temperature are January and February (22.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).

Average pressure in September
Serra, Brazil

  • Average pressure in September: 1018.7mbar

The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.7mbar).

Average wind speed in September
Serra, Brazil

  • Average wind speed in September: 14.3km/h

The windiest month (with the highest average wind speed) is September (14.3km/h).
The calmest month (with the lowest average wind speed) is April (10.3km/h).

Average humidity in September
Serra, Brazil

  • Average humidity in September: 80%

The months with the highest relative humidity are November and December (84%).
The month with the lowest relative humidity is August (79%).

Average rainfall in September
Serra, Brazil

  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is November (180mm).
The driest month (with the least rainfall) is July (30mm).

Average rainfall days in September
Serra, Brazil

  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is November (22.7 days).
The months with the least rainy days are May and June (12.8 days).

Average daylight in September /
Average sunshine in September
Serra, Brazil

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in September
Serra, Brazil

  • Average sunshine days in September: 7.6 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4.3 days).

Average UV index in September
Serra, Brazil

  • Average UV index in September: 5

The month with the highest UV index is February (UV index 7).
The months with the lowest UV index are July and September (UV index 5).

Average cloud cover in September
Serra, Brazil

  • Average cloud cover in September: 39

The month with the most cloud cover is November (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 31).

Average visibility in September
Serra, Brazil

  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).