September weather forecastCasa Nova, Brazil
September
Weather in September
September, the first month of the spring in Casa Nova, is a tropical month, with temperature in the range of an average low of 20.7°C (69.3°F) and an average high of 31.3°C (88.3°F).Temperature
The average high-temperature for September is a tropical 31.3°C (88.3°F), closely aligning with the temperature of the preceding month. Casa Nova experiences a steady low-temperature of 20.7°C (69.3°F) throughout September.Heat index
Throughout September, the heat index is estimated at a hot 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September is 54%.Rainfall
August and September are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 1mm (0.04") of rain.Daylight
In Casa Nova, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:45 and sunset at 17:42. On the last day of September, in Casa Nova, Brazil, sunrise is at 05:28 and sunset at 17:39 -03.
Sunshine
The average sunshine in September in Casa Nova is 9h.UV index
The months with the highest UV index in Casa Nova are January through April, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 7 suggests these recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Casa Nova, Brazil
- Average high temperature in September: 31.3°C
The warmest month (with the highest average high temperature) is November (32.4°C).
The month with the lowest average high temperature is July (28.7°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is November (23.6°C).
The coldest month (with the lowest average low temperature) is August (19.6°C).
Average pressure in September
Casa Nova, Brazil
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is July (1016.5mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Casa Nova, Brazil
- Average wind speed in September: 24km/h
The windiest month (with the highest average wind speed) is August (24.2km/h).
The calmest month (with the lowest average wind speed) is March (14km/h).
Average humidity in September
Casa Nova, Brazil
- Average humidity in September: 54%
The month with the highest relative humidity is April (68%).
The month with the lowest relative humidity is October (53%).
Average rainfall in September
Casa Nova, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is February (91mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in September
Casa Nova, Brazil
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in September /
Average sunshine in September
Casa Nova, 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 0min
The month with the most sunshine is January (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in September
Casa Nova, Brazil
- Average sunshine days in September: 25.8 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in September
Casa Nova, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 6).
Average cloud cover in September
Casa Nova, Brazil
- Average cloud cover in September: 19
The months with the most cloud cover are February, April and May (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Casa Nova, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
