Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, São João do Caiuá experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 29°C (84.2°F), closely mirroring the climate in August. Throughout September, São João do Caiuá notes a dramatic plunge from the daily high to an average low-temperature of 17°C (62.6°F).Heat index
The heat index value for September is estimated at a tropical 32°C (89.6°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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 least humid month in São João do Caiuá is September, with an average relative humidity of 66%.Rainfall
In São João do Caiuá, Brazil, during September, the rain falls for 9.5 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, in São João do Caiuá, there are 188.5 rainfall days, and 1243mm (48.94") of precipitation is accumulated.Daylight
In São João do Caiuá, Brazil, the average length of the day in September is 11h and 58min.On the first day of September, sunrise is at 06:38 and sunset at 18:19. On the last day of the month, sunrise is at 06:10 and sunset at 18:28 -03.
Sunshine
The average sunshine in September is 8.8h.UV index
January through March, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
How hot is September in São João do Caiuá?
What is the least humid month in São João do Caiuá?
What is the average humidity in September in São João do Caiuá?
How much does it rain in São João do Caiuá in September?
What is the average length of the day in September in São João do Caiuá?
What time are sunrise and sunset in September in São João do Caiuá?
How many hours of sunshine does São João do Caiuá have in September?
What is the month with the highest UV index in São João do Caiuá?
What is the UV index intensity in September in São João do Caiuá?
Average temperature in September
São João do Caiuá, Brazil
- Average high temperature in September: 29°C
The warmest months (with the highest average high temperature) are October and November (30°C).
The month with the lowest average high temperature is June (22.8°C).
- Average low temperature in September: 17°C
The months with the highest average low temperature are January and February (20.8°C).
The coldest month (with the lowest average low temperature) is July (14.2°C).
Average pressure in September
São João do Caiuá, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
São João do Caiuá, Brazil
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is August (11km/h).
The calmest months (with the lowest average wind speed) are February and March (7.7km/h).
Average humidity in September
São João do Caiuá, Brazil
- Average humidity in September: 66%
The months with the highest relative humidity are May and June (86%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
São João do Caiuá, Brazil
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is January (208mm).
The driest month (with the least rainfall) is July (41mm).
Average rainfall days in September
São João do Caiuá, Brazil
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is January (26.1 days).
The month with the least rainy days is August (6.8 days).
Average daylight in September /
Average sunshine in September
São João do Caiuá, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
São João do Caiuá, Brazil
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is January (3.8 days).
Average UV index in September
São João do Caiuá, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 5).
Average cloud cover in September
São João do Caiuá, Brazil
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
São João do Caiuá, Brazil
- Average visibility in September: 9km
The months with the highest visibility are July, August, September, October and November (9km).
The months with the lowest visibility are January, May and June (7km).
São João do Caiuá, Brazil
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