September weather forecastPassa-Vinte, Brazil
September
Weather in September
September, the first month of the spring in Passa-Vinte, is still a warm month, with temperature in the range of an average low of 15.5°C (59.9°F) and an average high of 27.4°C (81.3°F).Temperature
With the arrival of September, Passa-Vinte's average high-temperature registers at a still warm 27.4°C (81.3°F), indicating a subtle variation from the previous month. Throughout September, a steady low-temperature average of 15.5°C (59.9°F) is noted.Heat index
For September, the heat index is estimated at a hot 30°C (86°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
September is the least humid month in Passa-Vinte, with an average relative humidity of 76%.Rainfall
In Passa-Vinte, Brazil, during September, the rain falls for 12.5 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Passa-Vinte, there are 184.5 rainfall days, and 679mm (26.73") of precipitation is accumulated.Daylight
The average length of the day in September in Passa-Vinte is 11h and 59min.On the first day of September in Passa-Vinte, sunrise is at 06:06 and sunset at 17:47. On the last day of the month, sunrise is at 05:37 and sunset at 17:55 -03.
Sunshine
In Passa-Vinte, the average sunshine in September is 8.2h.UV index
March through July, September and November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 in September translates into these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Passa-Vinte, Brazil
- Average high temperature in September: 27.4°C
The warmest month (with the highest average high temperature) is February (29.8°C).
The month with the lowest average high temperature is June (23.8°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is January (19.4°C).
The coldest months (with the lowest average low temperature) are June, July and August (13.3°C).
Average pressure in September
Passa-Vinte, Brazil
- Average pressure in September: 1017.8mbar
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
Passa-Vinte, Brazil
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is September (6.5km/h).
The calmest month (with the lowest average wind speed) is April (4.9km/h).
Average humidity in September
Passa-Vinte, Brazil
- Average humidity in September: 76%
The months with the highest relative humidity are March and April (88%).
The month with the lowest relative humidity is September (76%).
Average rainfall in September
Passa-Vinte, Brazil
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is January (104mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in September
Passa-Vinte, Brazil
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is December (20.7 days).
The month with the least rainy days is August (8.3 days).
Average daylight in September /
Average sunshine in September
Passa-Vinte, 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: 8h and 12min
The month with the most sunshine is February (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in September
Passa-Vinte, Brazil
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Passa-Vinte, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, August, October and December (UV index 6).
The months with the lowest UV index are March, April, May, June, July, September and November (UV index 5).
Average cloud cover in September
Passa-Vinte, Brazil
- Average cloud cover in September: 37
The month with the most cloud cover is November (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Passa-Vinte, 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).
