September weather forecastComodoro, Brazil
September
Weather in September
September, the first month of the spring in Comodoro, is also a hot month, with an average temperature fluctuating between 20.8°C (69.4°F) and 34.1°C (93.4°F).Temperature
September is the warmest month, with the temperature often reaching an average high of 34.1°C (93.4°F) and an average low of 20.8°C (69.4°F).Heat index
The average heat index in September is evaluated at an extremely hot 40°C (104°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.In reference to the heat index, it's for places in shade and with a slight wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. 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 highly critical to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In Comodoro, the average relative humidity in September is 55%.Rainfall
In Comodoro, during September, the rain falls for 12.7 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, there are 237.8 rainfall days, and 1557mm (61.3") of precipitation is accumulated.Daylight
In Comodoro, the average length of the day in September is 12h and 2min.On the first day of September in Comodoro, sunrise is at 06:03 and sunset at 17:54. On the last day of the month, sunrise is at 05:42 and sunset at 17:55 -04.
Sunshine
The months with the most sunshine in Comodoro are September and October, with an average of 8.6h of sunshine.UV index
The months with the highest UV index in Comodoro, Brazil, are August and September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 7 during September translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Comodoro, Brazil
- Average high temperature in September: 34.1°C
The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is February (27.3°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is October (21.4°C).
The coldest month (with the lowest average low temperature) is July (17.3°C).
Average pressure in September
Comodoro, Brazil
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Comodoro, Brazil
- Average wind speed in September: 4.9km/h
The windiest month (with the highest average wind speed) is August (5.3km/h).
The calmest month (with the lowest average wind speed) is March (4km/h).
Average humidity in September
Comodoro, Brazil
- Average humidity in September: 55%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Comodoro, Brazil
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (266mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in September
Comodoro, Brazil
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is January (29.8 days).
The month with the least rainy days is July (3.6 days).
Average daylight in September /
Average sunshine in September
Comodoro, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are September and October (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Comodoro, Brazil
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is July (27.2 days).
The month with the least sunshine days is February (0.5 days).
Average UV index in September
Comodoro, Brazil
- Average UV index in September: 7
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).
Average cloud cover in September
Comodoro, Brazil
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Comodoro, 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 and December (6km).





