September weather forecastAreial, Brazil
September
Weather in September
The first month of the spring, September, is also a moderately hot month in Areial, Brazil, with an average temperature varying between 18.8°C (65.8°F) and 28.4°C (83.1°F).Temperature
September commences with an average high-temperature of a still warm 28.4°C (83.1°F), showing little deviation from August's 27.3°C (81.1°F). An average low-temperature of 18.8°C (65.8°F) marks the nights throughout September.Heat index
During September, the heat index is estimated at a hot 33°C (91.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 11mm (0.43") of precipitation.Daylight
In Areial, Brazil, the average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:24 and sunset at 17:23. On the last day of September, sunrise is at 05:08 and sunset at 17:18 -03.
Sunshine
In September, the average sunshine in Areial is 6.8h.UV index
January through June, 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 threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Areial, Brazil
- Average high temperature in September: 28.4°C
The warmest month (with the highest average high temperature) is March (30.9°C).
The month with the lowest average high temperature is July (26.4°C).
- Average low temperature in September: 18.8°C
The months with the highest average low temperature are February and March (21.7°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average pressure in September
Areial, Brazil
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is August (1016.1mbar).
The month with the lowest atmospheric pressure is February (1011.8mbar).
Average wind speed in September
Areial, Brazil
- Average wind speed in September: 15.8km/h
The windiest month (with the highest average wind speed) is October (16.2km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in September
Areial, Brazil
- Average humidity in September: 78%
The months with the highest relative humidity are May, June and July (86%).
The months with the lowest relative humidity are November and December (71%).
Average rainfall in September
Areial, Brazil
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is March (88mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in September
Areial, Brazil
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (21 days).
The months with the least rainy days are September and November (13.1 days).
Average daylight in September /
Average sunshine in September
Areial, 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: 6h and 48min
The months with the most sunshine are March and November (Average sunshine: 7h and 6min).
The month with the least sunshine is July (Average sunshine: 5h and 6min).
Average sunshine days in September
Areial, Brazil
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is September (8.3 days).
The month with the least sunshine days is February (3.9 days).
Average UV index in September
Areial, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 6).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Areial, Brazil
- Average cloud cover in September: 55
The month with the most cloud cover is July (Cloud cover 70).
The month with the least cloud cover is November (Cloud cover 49).
Average visibility in September
Areial, Brazil
- Average visibility in September: 8km
The months with the highest visibility are November and December (10km).
The months with the lowest visibility are April, May and June (6km).
