September weather forecastJacaraú, Brazil
September
Weather in September
September, the first month of the spring in Jacaraú, is still a warm month, with temperature in the range of an average low of 21.9°C (71.4°F) and an average high of 28.6°C (83.5°F).Temperature
The shift into September uncovers an average high-temperature of a still moderately hot 28.6°C (83.5°F), subtly different from the previous month. Jacaraú's average low-temperature in September is measured at an agreeable 21.9°C (71.4°F).Heat index
September's average heat index is computed to be a hot 33°C (91.4°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Jacaraú, in September, during 17.1 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Jacaraú, during the entire year, the rain falls for 199.6 days and collects up to 460mm (18.11") of precipitation.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September in Jacaraú, sunrise is at 05:21 and sunset at 17:20. On the last day of the month, sunrise is at 05:06 and sunset at 17:15 -03.
Sunshine
In Jacaraú, the average sunshine in September is 7.5h.UV index
The months with the highest UV index in Jacaraú are January through March, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jacaraú, Brazil
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is March (31.3°C).
The month with the lowest average high temperature is July (27.5°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is February (24.4°C).
The coldest month (with the lowest average low temperature) is August (21.4°C).
Average pressure in September
Jacaraú, Brazil
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is August (1015.7mbar).
The month with the lowest atmospheric pressure is February (1011.6mbar).
Average wind speed in September
Jacaraú, Brazil
- Average wind speed in September: 17.3km/h
The windiest month (with the highest average wind speed) is September (17.3km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in September
Jacaraú, Brazil
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (71%).
Average rainfall in September
Jacaraú, Brazil
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is July (75mm).
The driest month (with the least rainfall) is November (11mm).
Average rainfall days in September
Jacaraú, Brazil
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (23.8 days).
The month with the least rainy days is November (12.6 days).
Average daylight in September /
Average sunshine in September
Jacaraú, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 7h and 30min
The months with the most sunshine are January, March and November (Average sunshine: 7h and 48min).
The month with the least sunshine is July (Average sunshine: 6h and 12min).
Average sunshine days in September
Jacaraú, Brazil
- Average sunshine days in September: 5.8 days
The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is July (4.5 days).
Average UV index in September
Jacaraú, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Jacaraú, Brazil
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is March (Cloud cover 40).
Average visibility in September
Jacaraú, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).





