September weather forecastCassilândia, Brazil
September
Weather in September
The first month of the spring, September, is still a hot month in Cassilândia, Brazil, with an average temperature fluctuating between 33.5°C (92.3°F) and 20.4°C (68.7°F).Temperature
Cassilândia experiences its highest average temperatures in September, reaching a peak of 33.5°C (92.3°F) and a minimum of 20.4°C (68.7°F).Heat index
During September, the heat index is calculated to be a very hot 36°C (96.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In Cassilândia, the average relative humidity in September is 47%.Rainfall
In Cassilândia, in September, during 8.4 rainfall days, 41mm (1.61") of precipitation is typically accumulated. Throughout the year, in Cassilândia, there are 200.6 rainfall days, and 1186mm (46.69") of precipitation is accumulated.Daylight
In September, the average length of the day in Cassilândia is 12h and 0min.On the first day of the month, sunrise is at 05:34 and sunset at 17:19. On the last day of September, sunrise is at 05:08 and sunset at 17:24 -04.
Sunshine
In Cassilândia, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Cassilândia is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cassilândia, Brazil
- Average high temperature in September: 33.5°C
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is June (26.4°C).
- Average low temperature in September: 20.4°C
The month with the highest average low temperature is October (21.5°C).
The coldest month (with the lowest average low temperature) is June (16.1°C).
Average pressure in September
Cassilândia, Brazil
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is July (1017.5mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in September
Cassilândia, Brazil
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is August (9.2km/h).
The calmest month (with the lowest average wind speed) is March (5.9km/h).
Average humidity in September
Cassilândia, Brazil
- Average humidity in September: 47%
The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Cassilândia, Brazil
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is January (210mm).
The driest month (with the least rainfall) is July (7mm).
Average rainfall days in September
Cassilândia, Brazil
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is January (28.2 days).
The month with the least rainy days is August (2.9 days).
Average daylight in September /
Average sunshine in September
Cassilândia, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is October (Average sunshine: 10h and 12min).
The month with the least sunshine is June (Average sunshine: 7h and 6min).
Average sunshine days in September
Cassilândia, Brazil
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (27.5 days).
The months with the least sunshine days are January and February (1.7 days).
Average UV index in September
Cassilândia, Brazil
- Average UV index in September: 6
The months with the highest UV index are August and October (UV index 7).
The month with the lowest UV index is April (UV index 5).
Average cloud cover in September
Cassilândia, Brazil
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Cassilândia, 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 March and April (7km).
