September weather forecastCajapió, Brazil
September
Weather in September
September, the first month of the spring in Cajapió, is still a tropical month, with an average temperature varying between 34.5°C (94.1°F) and 22.5°C (72.5°F).Temperature
In September, the average high-temperature registers at a still tropical 34.5°C (94.1°F), nearly identical to August's 33.3°C (91.9°F). Cajapió experiences a substantial divergence from daytime highs in September, with average lows hovering around a pleasant 22.5°C (72.5°F).Heat index
The heat index in September is estimated at a burning hot 49°C (120.2°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in September is 70%.Rainfall
September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 14mm (0.55") of precipitation.Daylight
The average length of the day in September is 12h and 6min.On the first day of the month, sunrise is at 05:56 and sunset at 18:00. On the last day of September, sunrise is at 05:44 and sunset at 17:52 -03.
Sunshine
In Cajapió, Brazil, the average sunshine in September is 7.6h.UV index
The months with the highest UV index are May, July through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 7 in September transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cajapió, Brazil
- Average high temperature in September: 34.5°C
The warmest month (with the highest average high temperature) is October (35.1°C).
The month with the lowest average high temperature is April (30.2°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is November (23.8°C).
The coldest month (with the lowest average low temperature) is July (21.2°C).
Average pressure in September
Cajapió, Brazil
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
Cajapió, Brazil
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is October (8.6km/h).
The calmest month (with the lowest average wind speed) is April (5.1km/h).
Average humidity in September
Cajapió, Brazil
- Average humidity in September: 70%
The months with the highest relative humidity are March, April and May (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Cajapió, Brazil
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is April (250mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Cajapió, Brazil
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is March (30.6 days).
The month with the least rainy days is September (10.7 days).
Average daylight in September /
Average sunshine in September
Cajapió, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is May (Average sunshine: 5h and 48min).
Average sunshine days in September
Cajapió, Brazil
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is March (0 days).
Average UV index in September
Cajapió, Brazil
- Average UV index in September: 7
The months with the highest UV index are May, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, June and December (UV index 6).
Average cloud cover in September
Cajapió, Brazil
- Average cloud cover in September: 37
The months with the most cloud cover are March and April (Cloud cover 68).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Cajapió, Brazil
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are February, March, April and May (6km).
