September weather forecastRibeirópolis, Brazil

September

Weather in September

The first month of the spring, September, is also a moderately hot month in Ribeirópolis, Brazil, with an average temperature fluctuating between 28.2°C (82.8°F) and 19.3°C (66.7°F).

Temperature

The initiation of September sees an average high-temperature of a still warm 28.2°C (82.8°F), showing minor variations from the previous month. In Ribeirópolis, in September, the average low-temperature is a comfortable 19.3°C (66.7°F).

Heat index

September's mean heat index is appraised at a tropical 33°C (91.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

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

Rainfall

In September, the rain falls for 17 days. Throughout September, 22mm (0.87") of precipitation is accumulated. In Ribeirópolis, during the entire year, the rain falls for 183.6 days and collects up to 371mm (14.61") of precipitation.

Daylight

The average length of the day in September is 12h and 3min.
On the first day of September, sunrise is at 05:32 and sunset at 17:27. On the last day of the month, sunrise is at 05:13 and sunset at 17:25 -03.

Sunshine

The average sunshine in September in Ribeirópolis is 6.9h.

UV index

April through October, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

In Ribeirópolis, 28.2°C (82.8°F) is the average high-temperature and 19.3°C (66.7°F) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 33°C (91.4°F).

In Ribeirópolis, Brazil, the average relative humidity in September is 80%.

In September, in Ribeirópolis, the rain falls for 17 days. Throughout September, 22mm (0.87") of precipitation is accumulated.

In Ribeirópolis, Brazil, the average day length in September is 12h and 3min.

On the first day of September, sunrise is at 05:32 and sunset at 17:27. On the last day of the month, sunrise is at 05:13 and sunset at 17:25 -03.

In Ribeirópolis, Brazil, the average sunshine duration in September is 6.9h.

April through October, with an average maximum UV index of 6, are months with the lowest UV index in Ribeirópolis.

The average daily maximum UV index in September in Ribeirópolis, Brazil, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's 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
Ribeirópolis, Brazil

  • Average high temperature in September: 28.2°C

The warmest month (with the highest average high temperature) is March (32.5°C).
The month with the lowest average high temperature is July (26.6°C).

  • Average low temperature in September: 19.3°C

The month with the highest average low temperature is March (22.8°C).
The coldest month (with the lowest average low temperature) is August (18.8°C).

Average pressure in September
Ribeirópolis, Brazil

  • Average pressure in September: 1016.4mbar

The month with the highest atmospheric pressure is August (1017.4mbar).
The month with the lowest atmospheric pressure is March (1011.9mbar).

Average wind speed in September
Ribeirópolis, Brazil

  • Average wind speed in September: 14.2km/h

The windiest month (with the highest average wind speed) is November (15.3km/h).
The calmest month (with the lowest average wind speed) is May (11.3km/h).

Average humidity in September
Ribeirópolis, Brazil

  • Average humidity in September: 80%

The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is December (72%).

Average rainfall in September
Ribeirópolis, Brazil

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is November (13mm).

Average rainfall days in September
Ribeirópolis, Brazil

  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is December (8 days).

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

  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in September: 6h and 54min

The month with the most sunshine is December (Average sunshine: 7h and 54min).
The month with the least sunshine is May (Average sunshine: 6h and 0min).

Average sunshine days in September
Ribeirópolis, Brazil

  • Average sunshine days in September: 8.5 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is July (4.1 days).

Average UV index in September
Ribeirópolis, Brazil

  • Average UV index in September: 6

The months with the highest UV index are January, February, March, November and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 6).

Average cloud cover in September
Ribeirópolis, Brazil

  • Average cloud cover in September: 50

The month with the most cloud cover is July (Cloud cover 58).
The month with the least cloud cover is December (Cloud cover 39).

Average visibility in September
Ribeirópolis, Brazil

  • Average visibility in September: 8km

The month with the highest visibility is February (10km).
The months with the lowest visibility are May, June, July and August (7km).