September weather forecastGalvão, Brazil

September

Weather in September

The first month of the spring, September, is a moderately hot month in Galvão, Brazil, with temperature in the range of an average high of 24°C (75.2°F) and an average low of 12.7°C (54.9°F).

Temperature

September reports an average high-temperature of a warm 24°C (75.2°F), slightly varied from August's 21.8°C (71.2°F). During the September nights, an average temperature of 12.7°C (54.9°F) is observed in Galvão.

Humidity

With an average relative humidity of 77%, September is the least humid month.

Rainfall

In Galvão, during September, the rain falls for 12.4 days and regularly aggregates up to 75mm (2.95") of precipitation. Throughout the year, in Galvão, there are 187 rainfall days, and 1107mm (43.58") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 57min.
On the first day of the month, sunrise is at 06:42 and sunset at 18:18. On the last day of September, sunrise is at 06:10 and sunset at 18:30 -03.

Sunshine

The average sunshine in September is 8.5h.

UV index

In Galvão, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Galvão, 24°C (75.2°F) is the average high-temperature and 12.7°C (54.9°F) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in February is estimated at 32°C (89.6°F).

The least humid month in Galvão, Brazil, is September, with an average relative humidity of 77%.

In Galvão, Brazil, the average relative humidity in September is 77%.

In September, in Galvão, the rain falls for 12.4 days. Throughout September, 75mm (2.95") of precipitation is accumulated.

The average day length in September in Galvão is 11h and 57min.

On the first day of September in Galvão, Brazil, sunrise is at 06:42 and sunset at 18:18. On the last day of the month, sunrise is at 06:10 and sunset at 18:30 -03.

In September, the average sunshine duration in Galvão, Brazil, is 8.5h.

In September, the average daily maximum UV index in Galvão is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

21.8°C

24°C

25.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.8km/h

10.5km/h

10.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

18.2

16.5

12.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Galvão, Brazil

Average high temperature in September: 24°C

The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is June (18.8°C).

Average low temperature in September: 12.7°C

The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).

Average pressure in September
Galvão, Brazil

Average pressure in September: 1015.8mbar

The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).

Average wind speed in September
Galvão, Brazil

Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is August (10.1km/h).
The calmest month (with the lowest average wind speed) is March (8.6km/h).

Average humidity in September
Galvão, Brazil

Average humidity in September: 77%

The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is September (77%).

Average rainfall in September
Galvão, Brazil

Average rainfall in September: 75mm

The wettest month (with the highest rainfall) is May (131mm).
The driest month (with the least rainfall) is August (67mm).

Average rainfall days in September
Galvão, Brazil

Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is August (11.2 days).

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

Average daylight in September: 12h and 0min

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

Average sunshine in September: 8h and 30min

The months with the most sunshine are April and November (Average sunshine: 8h and 36min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).

Average sunshine days in September
Galvão, Brazil

Average sunshine days in September: 16.5 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in September
Galvão, Brazil

Average UV index in September: 5

The months with the highest UV index are January, November and December (UV index 6).
The months with the lowest UV index are April, May and June (UV index 4).