September weather forecastRio Crespo, Brazil
September
Weather in September
The first month of the spring, September, is still a very hot month in Rio Crespo, Brazil, with an average temperature ranging between max 36.6°C (97.9°F) and min 23.4°C (74.1°F).Temperature
September is the warmest month, with an average high-temperature of 36.6°C (97.9°F) and an average low-temperature of 23.4°C (74.1°F).Heat index
Throughout September, the heat index is calculated to be a blazing hot 48°C (118.4°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Rio Crespo, the average relative humidity in September is 56%.Rainfall
In Rio Crespo, in September, it is raining for 12.7 days, with typically 29mm (1.14") of accumulated precipitation. In Rio Crespo, Brazil, during the entire year, the rain falls for 239.4 days and collects up to 1466mm (57.72") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 06:13 and sunset at 18:09. On the last day of September, sunrise is at 05:55 and sunset at 18:06 -04.
Sunshine
In Rio Crespo, the average sunshine in September is 9.6h.UV index
June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: During September, 7 as the daily maximum UV index converts into the following advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rio Crespo, Brazil
- Average high temperature in September: 36.6°C
The warmest month (with the highest average high temperature) is September (36.6°C).
The month with the lowest average high temperature is February (28.7°C).
- Average low temperature in September: 23.4°C
The month with the highest average low temperature is September (23.4°C).
The coldest month (with the lowest average low temperature) is July (19.8°C).
Average pressure in September
Rio Crespo, Brazil
- Average pressure in September: 1010.4mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in September
Rio Crespo, Brazil
- Average wind speed in September: 4.5km/h
The windiest month (with the highest average wind speed) is August (4.8km/h).
The calmest month (with the lowest average wind speed) is March (3.6km/h).
Average humidity in September
Rio Crespo, Brazil
- Average humidity in September: 56%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Rio Crespo, Brazil
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is January (243mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in September
Rio Crespo, Brazil
- Average rainfall days in September: 12.7 days
The months with the highest number of rainy days are January and March (29.8 days).
The month with the least rainy days is July (3.8 days).
Average daylight in September /
Average sunshine in September
Rio Crespo, Brazil
- Average daylight in September: 12h and 6min
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 36min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Rio Crespo, Brazil
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (0.5 days).
Average UV index in September
Rio Crespo, Brazil
- Average UV index in September: 7
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Rio Crespo, Brazil
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Rio Crespo, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February and March (5km).





