September weather forecastAlta Floresta, Brazil
September
Weather in September
September, the first month of the spring in Alta Floresta, is still a very hot month, with an average temperature varying between 21.8°C (71.2°F) and 36.5°C (97.7°F).Temperature
September brings the highest temperatures, with an average high of 36.5°C (97.7°F) and an average low of 21.8°C (71.2°F).Heat index
September's mean heat index is evaluated at a blazing hot 45°C (113°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.Metrics for the heat index primarily focus on shaded spots and light wind conditions. 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 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Alta Floresta, the average relative humidity in September is 52%.Rainfall
In Alta Floresta, in September, during 10.6 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Alta Floresta, Brazil, during the entire year, the rain falls for 233.7 days and collects up to 1653mm (65.08") of precipitation.Daylight
In September, the average length of the day is 12h and 3min.On the first day of September, sunrise is at 05:46 and sunset at 17:42. On the last day of the month, sunrise is at 05:28 and sunset at 17:39 -04.
Sunshine
The average sunshine in September is 9.6h.UV index
The months with the highest UV index are July through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 7 turns into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alta Floresta, Brazil
- Average high temperature in September: 36.5°C
The warmest month (with the highest average high temperature) is September (36.5°C).
The month with the lowest average high temperature is February (28.3°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is September (21.8°C).
The coldest month (with the lowest average low temperature) is July (18.3°C).
Average pressure in September
Alta Floresta, Brazil
- Average pressure in September: 1011mbar
The months with the highest atmospheric pressure are June and July (1013.8mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in September
Alta Floresta, Brazil
- Average wind speed in September: 4.9km/h
The windiest months (with the highest average wind speed) are July and August (5.8km/h).
The calmest month (with the lowest average wind speed) is March (3.7km/h).
Average humidity in September
Alta Floresta, Brazil
- Average humidity in September: 52%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is August (45%).
Average rainfall in September
Alta Floresta, Brazil
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is March (288mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Alta Floresta, Brazil
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is January (30.2 days).
The month with the least rainy days is July (1.8 days).
Average daylight in September /
Average sunshine in September
Alta Floresta, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Alta Floresta, Brazil
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is January (0.3 days).
Average UV index in September
Alta Floresta, Brazil
- Average UV index in September: 7
The months with the highest UV index are July, August and September (UV index 7).
The month with the lowest UV index is March (UV index 5).
Average cloud cover in September
Alta Floresta, Brazil
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Alta Floresta, 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 and December (6km).
