September weather forecastCoreaú, Brazil
September
Weather in September
September, the first month of the spring in Coreaú, is a fiery hot month, with an average temperature varying between 35.4°C (95.7°F) and 22.7°C (72.9°F).Temperature
September's average high-temperature stands at a very hot 35.4°C (95.7°F), showing little deviation from August's 34.5°C (94.1°F). Coreaú experiences a significant contrast between daily highs and an average nighttime temperature of 22.7°C (72.9°F) during September.Heat index
For most parts of September, the heat index is calculated to be a blazing hot 45°C (113°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
September and October, with an average relative humidity of 57%, are the least humid months in Coreaú.Rainfall
September is the month with the least rainfall. Rain falls for 5.1 days and accumulates 3mm (0.12") of precipitation.Daylight
In September, the average length of the day in Coreaú is 12h and 5min.On the first day of September, sunrise is at 05:40 and sunset at 17:43. On the last day of the month, sunrise is at 05:28 and sunset at 17:36 -03.
Sunshine
In September, the average sunshine is 9.1h.UV index
July through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 7 in September suggests the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coreaú, Brazil
- Average high temperature in September: 35.4°C
The warmest month (with the highest average high temperature) is October (35.8°C).
The month with the lowest average high temperature is April (30.3°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is November (24.2°C).
The coldest months (with the lowest average low temperature) are June and July (20.9°C).
Average pressure in September
Coreaú, Brazil
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is July (1013.7mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in September
Coreaú, Brazil
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is October (15.8km/h).
The calmest month (with the lowest average wind speed) is April (7.7km/h).
Average humidity in September
Coreaú, Brazil
- Average humidity in September: 57%
The month with the highest relative humidity is April (85%).
The months with the lowest relative humidity are September and October (57%).
Average rainfall in September
Coreaú, Brazil
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is September (3mm).
Average rainfall days in September
Coreaú, Brazil
- Average rainfall days in September: 5.1 days
The month with the highest number of rainy days is March (29 days).
The month with the least rainy days is September (5.1 days).
Average daylight in September /
Average sunshine in September
Coreaú, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is March (Average sunshine: 5h and 36min).
Average sunshine days in September
Coreaú, Brazil
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is September (23.3 days).
The months with the least sunshine days are March and April (1.6 days).
Average UV index in September
Coreaú, Brazil
- Average UV index in September: 7
The months with the highest UV index are July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May and June (UV index 6).
Average cloud cover in September
Coreaú, Brazil
- Average cloud cover in September: 21
The month with the most cloud cover is March (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 21).
Average visibility in September
Coreaú, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (7km).





