September weather forecastVassouras, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Vassouras, Brazil, with temperature in the range of an average high of 27.2°C (81°F) and an average low of 15.6°C (60.1°F).Temperature
Vassouras, Brazil, in September witnesses an average high-temperature of a still moderately hot 27.2°C (81°F), indicating a slight variation from August's 25.4°C (77.7°F). Nighttime temperatures hover around an average low of 15.6°C (60.1°F) in September.Heat index
September's mean heat index is appraised at a hot 30°C (86°F). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The least humid month in Vassouras is September, with an average relative humidity of 77%.Rainfall
In September, in Vassouras, the rain falls for 13.1 days. Throughout September, 33mm (1.3") of precipitation is accumulated. Throughout the year, in Vassouras, there are 218.6 rainfall days, and 969mm (38.15") of precipitation is accumulated.Daylight
In September, the average length of the day in Vassouras is 11h and 59min.On the first day of the month, sunrise is at 06:03 and sunset at 17:44. On the last day of September, sunrise is at 05:35 and sunset at 17:53 -03.
Sunshine
In September, the average sunshine is 7.8h.UV index
April through September and November, with an average maximum UV index of 5, are months with the lowest UV index in Vassouras. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vassouras, Brazil
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is February (29.5°C).
The months with the lowest average high temperature are June and July (23.9°C).
- Average low temperature in September: 15.6°C
The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is July (13.3°C).
Average pressure in September
Vassouras, Brazil
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).
Average wind speed in September
Vassouras, Brazil
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is September (6.9km/h).
The calmest month (with the lowest average wind speed) is April (5.1km/h).
Average humidity in September
Vassouras, Brazil
- Average humidity in September: 77%
The month with the highest relative humidity is April (89%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Vassouras, Brazil
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is January (166mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in September
Vassouras, Brazil
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is December (27.3 days).
The month with the least rainy days is August (9 days).
Average daylight in September /
Average sunshine in September
Vassouras, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is February (Average sunshine: 8h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).
Average sunshine days in September
Vassouras, Brazil
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is August (19.9 days).
The months with the least sunshine days are November and December (3.2 days).
Average UV index in September
Vassouras, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, October and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and November (UV index 5).
Average cloud cover in September
Vassouras, Brazil
- Average cloud cover in September: 41
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Vassouras, Brazil
- Average visibility in September: 8km
The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are March, April and May (6km).
