September weather forecastIaras, Brazil

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Iaras, Brazil, with an average temperature fluctuating between 26.2°C (79.2°F) and 14.6°C (58.3°F).

Temperature

With September's advent, Iaras sees an average high-temperature of a still moderately hot 26.2°C (79.2°F), subtly shifted from August's 23.8°C (74.8°F). The average low-temperature during September nights is a moderate 14.6°C (58.3°F).

Humidity

The least humid month is September, with an average relative humidity of 72%.

Rainfall

In Iaras, during September, the rain falls for 10.6 days and regularly aggregates up to 68mm (2.68") of precipitation. In Iaras, during the entire year, the rain falls for 208.7 days and collects up to 1313mm (51.69") of precipitation.

Daylight

The average length of the day in September is 11h and 58min.
On the first day of September, sunrise is at 06:26 and sunset at 18:06. On the last day of the month, sunrise is at 05:57 and sunset at 18:15 -03.

Sunshine

In September, the average sunshine is 8.6h.

UV index

January through September, November and December, with an average maximum UV index of 5, are months with the lowest UV index in Iaras. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

The high-temperature in Iaras during September is 26.2°C (79.2°F) and the low-temperature is 14.6°C (58.3°F).

September is the least humid month, with an average relative humidity of 72%.

The average relative humidity in September in Iaras, Brazil, is 72%.

In Iaras, in September, during 10.6 rainfall days, 68mm (2.68") of precipitation is typically accumulated.

In September, the average day length in Iaras, Brazil, is 11h and 58min.

In September, on the first day of the month, sunrise is at 06:26 and sunset at 18:06. On the last day of the month, in Iaras, Brazil, sunrise is at 05:57 and sunset at 18:15 -03.

In Iaras, Brazil, the average sunshine duration in September is 8.6h.

January through September, November and December, with an average maximum UV index of 5, are months with the lowest UV index in Iaras.

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Iaras, Brazil

  • Average high temperature in September: 26.2°C

The warmest month (with the highest average high temperature) is December (27.3°C).
The month with the lowest average high temperature is June (21°C).

  • Average low temperature in September: 14.6°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (12.5°C).

Average pressure in September
Iaras, Brazil

  • Average pressure in September: 1016.1mbar

The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).

Average wind speed in September
Iaras, Brazil

  • Average wind speed in September: 11.2km/h

The windiest month (with the highest average wind speed) is October (11.3km/h).
The calmest month (with the lowest average wind speed) is February (8.4km/h).

Average humidity in September
Iaras, Brazil

  • Average humidity in September: 72%

The months with the highest relative humidity are February, March and May (88%).
The month with the lowest relative humidity is September (72%).

Average rainfall in September
Iaras, Brazil

  • Average rainfall in September: 68mm

The wettest month (with the highest rainfall) is January (250mm).
The driest month (with the least rainfall) is August (32mm).

Average rainfall days in September
Iaras, Brazil

  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is January (27.9 days).
The month with the least rainy days is August (6.4 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).

Average sunshine days in September
Iaras, Brazil

  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is February (1.6 days).

Average UV index in September
Iaras, Brazil

  • Average UV index in September: 5

The month with the highest UV index is October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 5).

Average cloud cover in September
Iaras, Brazil

  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Iaras, Brazil

  • Average visibility in September: 9km

The months with the highest visibility are August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May and June (7km).