September weather forecastMatão, Brazil
September
Weather in September
September, the first month of the spring in Matão, is a hot month, with an average temperature ranging between min 17.7°C (63.9°F) and max 30.5°C (86.9°F).Temperature
September and October are identified as the warmest months, with an average high-temperature of 30.5°C (86.9°F).Heat index
In September, the heat index is evaluated at a hot 33°C (91.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
With an average relative humidity of 57%, September is the least humid month.Rainfall
In Matão, in September, during 9.4 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, in Matão, Brazil, there are 215.1 rainfall days, and 1334mm (52.52") of precipitation is accumulated.Daylight
In Matão, the average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:22 and sunset at 18:04. On the last day of the month, sunrise is at 05:54 and sunset at 18:11 -03.
Sunshine
The months with the most sunshine in Matão are August and September, with an average of 9.3h of sunshine.UV index
The months with the highest UV index in Matão, Brazil, are January, March, July through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 6 suggests these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Matão, Brazil
- Average high temperature in September: 30.5°C
The warmest months (with the highest average high temperature) are September and October (30.5°C).
The month with the lowest average high temperature is June (23.8°C).
- Average low temperature in September: 17.7°C
The month with the highest average low temperature is December (20.3°C).
The coldest month (with the lowest average low temperature) is June (14.4°C).
Average pressure in September
Matão, Brazil
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is July (1019mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in September
Matão, Brazil
- Average wind speed in September: 10.1km/h
The windiest months (with the highest average wind speed) are August and September (10.1km/h).
The calmest month (with the lowest average wind speed) is February (7.2km/h).
Average humidity in September
Matão, Brazil
- Average humidity in September: 57%
The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (57%).
Average rainfall in September
Matão, Brazil
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is January (257mm).
The driest month (with the least rainfall) is July (12mm).
Average rainfall days in September
Matão, Brazil
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (4.5 days).
Average daylight in September /
Average sunshine in September
Matão, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are August and September (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Matão, Brazil
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (1 days).
Average UV index in September
Matão, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, March, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are February, April, May and June (UV index 5).
Average cloud cover in September
Matão, Brazil
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Matão, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May and December (8km).
