September weather forecastGoianápolis, Brazil
September
Weather in September
September, the first month of the spring in Goianápolis, is a hot month, with an average temperature ranging between min 19°C (66.2°F) and max 31.9°C (89.4°F).Temperature
With average high and low temperatures of 31.9°C (89.4°F) and 19°C (66.2°F) respectively, September is Goianápolis's warmest month.Heat index
The heat index value during September is calculated to be a hot 33°C (91.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 44%.Rainfall
In Goianápolis, in September, during 5.5 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, in Goianápolis, there are 204.3 rainfall days, and 1283mm (50.51") of precipitation is accumulated.Daylight
In Goianápolis, the average length of the day in September is 12h and 1min.On the first day of September in Goianápolis, sunrise is at 06:21 and sunset at 18:09. On the last day of the month, sunrise is at 05:58 and sunset at 18:13 -03.
Sunshine
In Goianápolis, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Goianápolis, Brazil
- Average high temperature in September: 31.9°C
The warmest month (with the highest average high temperature) is September (31.9°C).
The month with the lowest average high temperature is May (25.5°C).
- Average low temperature in September: 19°C
The month with the highest average low temperature is October (19.7°C).
The coldest month (with the lowest average low temperature) is July (14.9°C).
Average pressure in September
Goianápolis, Brazil
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is July (1017.8mbar).
The month with the lowest atmospheric pressure is November (1011.3mbar).
Average wind speed in September
Goianápolis, Brazil
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is August (9.6km/h).
The calmest month (with the lowest average wind speed) is March (6.2km/h).
Average humidity in September
Goianápolis, Brazil
- Average humidity in September: 44%
The month with the highest relative humidity is March (89%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in September
Goianápolis, Brazil
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is November (220mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Goianápolis, Brazil
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is December (30.2 days).
The month with the least rainy days is August (0.9 days).
Average daylight in September /
Average sunshine in September
Goianápolis, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in September
Goianápolis, Brazil
- Average sunshine days in September: 24.1 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is December (0.7 days).
Average UV index in September
Goianápolis, Brazil
- Average UV index in September: 6
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, March, May, June, October and November (UV index 5).
Average cloud cover in September
Goianápolis, Brazil
- Average cloud cover in September: 16
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Goianápolis, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (7km).
