September weather forecastRolante, Brazil

September

Weather in September

September, the first month of the spring in Rolante, is also an agreeable month, with an average temperature varying between 20.7°C (69.3°F) and 12.5°C (54.5°F).

Temperature

Rolante's transition from August to September introduces an average high-temperature of a still pleasant 20.7°C (69.3°F), marking an insignificant variation from the 20°C (68°F). An average nighttime temperature of 12.5°C (54.5°F) is noted during the month of September.

Humidity

The months with the highest humidity in Rolante are May through July and September, with an average relative humidity of 83%.

Rainfall

In September, the rain falls for 14 days. Throughout September, 74mm (2.91") of precipitation is accumulated. Throughout the year, in Rolante, there are 179 rainfall days, and 920mm (36.22") of precipitation is accumulated.

Daylight

The average length of the day in September is 11h and 56min.
On the first day of the month, sunrise is at 06:36 and sunset at 18:07. On the last day of September, in Rolante, sunrise is at 06:00 and sunset at 18:23 -03.

Sunshine

The average sunshine in September in Rolante is 7.4h.

UV index

In Rolante, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

The high-temperature, in September, in Rolante, is 20.7°C (69.3°F), while the low-temperature averages to 12.5°C (54.5°F). In February, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 33°C (91.4°F).

May through July and September, with an average relative humidity of 83%, are most humid months in Rolante.

In September, the average relative humidity in Rolante, Brazil, is 83%.

In Rolante, Brazil, in September, during 14 rainfall days, 74mm (2.91") of precipitation is typically accumulated.

In Rolante, the average day length in September is 11h and 56min.

In September, on the first day of the month, sunrise is at 06:36 and sunset at 18:07. On the last day of the month, in Rolante, sunrise is at 06:00 and sunset at 18:23 -03.

In Rolante, the average sunshine duration in September is 7.4h.

In September, the average daily maximum UV index in Rolante is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe 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
Rolante, Brazil

  • Average high temperature in September: 20.7°C

The warmest months (with the highest average high temperature) are January and February (28.3°C).
The month with the lowest average high temperature is July (17.8°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is January (19°C).
The coldest month (with the lowest average low temperature) is July (10.2°C).

Average pressure in September
Rolante, Brazil

  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is December (1011.6mbar).

Average wind speed in September
Rolante, Brazil

  • Average wind speed in September: 11.5km/h

The windiest month (with the highest average wind speed) is September (11.5km/h).
The calmest month (with the lowest average wind speed) is May (9.8km/h).

Average humidity in September
Rolante, Brazil

  • Average humidity in September: 83%

The months with the highest relative humidity are May, June, July and September (83%).
The month with the lowest relative humidity is December (77%).

Average rainfall in September
Rolante, Brazil

  • Average rainfall in September: 74mm

The wettest month (with the highest rainfall) is July (112mm).
The driest month (with the least rainfall) is April (51mm).

Average rainfall days in September
Rolante, Brazil

  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is June (10.8 days).

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

  • Average daylight in September: 11h and 54min

The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).

  • Average sunshine in September: 7h and 24min

The months with the most sunshine are November and December (Average sunshine: 8h and 18min).
The month with the least sunshine is May (Average sunshine: 7h and 6min).

Average sunshine days in September
Rolante, Brazil

  • Average sunshine days in September: 12.6 days

The month with the most sunshine days is June (17.2 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in September
Rolante, Brazil

  • Average UV index in September: 5

The months with the highest UV index are January, February, 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
Rolante, Brazil

  • Average cloud cover in September: 40

The month with the most cloud cover is October (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 33).

Average visibility in September
Rolante, Brazil

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, June, July, August, September, November and December (9km).
The months with the lowest visibility are May and October (8km).