September weather forecastMachacalis, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Machacalis, Brazil, with an average temperature fluctuating between 18°C (64.4°F) and 28.5°C (83.3°F).Temperature
September's climate shows a minor adjustment in average high-temperatures to a still warm 28.5°C (83.3°F) from August's 26.7°C (80.1°F). In Machacalis, the average nighttime temperature during September is an enjoyable 18°C (64.4°F).Heat index
September's average heat index is calculated to be a tropical 32°C (89.6°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
With an average relative humidity of 74%, September is the least humid month in Machacalis.Rainfall
The month with the least rainfall is September, when the rain falls for 13.8 days and typically collects 18mm (0.71") of precipitation.Daylight
In Machacalis, the average length of the day in September is 12h and 1min.On the first day of September, sunrise is at 05:48 and sunset at 17:36. On the last day of the month, sunrise is at 05:25 and sunset at 17:40 -03.
Sunshine
The average sunshine in September in Machacalis is 7.5h.UV index
The months with the highest UV index are January through June, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Machacalis, Brazil
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is February (30.9°C).
The month with the lowest average high temperature is July (25.8°C).
- Average low temperature in September: 18°C
The months with the highest average low temperature are January, February and March (20.6°C).
The coldest month (with the lowest average low temperature) is July (16.8°C).
Average pressure in September
Machacalis, Brazil
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed in September
Machacalis, Brazil
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is October (10.5km/h).
The calmest month (with the lowest average wind speed) is May (7.2km/h).
Average humidity in September
Machacalis, Brazil
- Average humidity in September: 74%
The month with the highest relative humidity is April (85%).
The month with the lowest relative humidity is September (74%).
Average rainfall in September
Machacalis, Brazil
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (148mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in September
Machacalis, Brazil
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is December (23.9 days).
The month with the least rainy days is September (13.8 days).
Average daylight in September /
Average sunshine in September
Machacalis, 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 6min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is February (Average sunshine: 8h and 24min).
The month with the least sunshine is October (Average sunshine: 6h and 36min).
Average sunshine days in September
Machacalis, Brazil
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is September (12.2 days).
The month with the least sunshine days is November (5.1 days).
Average UV index in September
Machacalis, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 6).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Machacalis, Brazil
- Average cloud cover in September: 46
The months with the most cloud cover are April and November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 46).
Average visibility in September
Machacalis, Brazil
- Average visibility in September: 9km
The month with the highest visibility is September (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (7km).
