Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September is characterized by an average high-temperature of a still moderately hot 27.3°C (81.1°F), not significantly different from the 26.5°C (79.7°F) of August. In the month of September, the average temperature dips to a comfortable 18.8°C (65.8°F) during the night.Heat index
For most parts of September, the heat index is calculated to be a hot 31°C (87.8°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September in Chã Grande is 83%.Rainfall
In Chã Grande, in September, during 18.2 rainfall days, 18mm (0.71") of precipitation is typically accumulated. Throughout the year, there are 224.2 rainfall days, and 472mm (18.58") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 4min.On the first day of September in Chã Grande, sunrise is at 05:22 and sunset at 17:20. On the last day of the month, sunrise is at 05:06 and sunset at 17:16 -03.
Sunshine
In September, the average sunshine is 6.6h.UV index
The months with the highest UV index in Chã Grande are January through May, August through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Chã Grande?
What is the average humidity in September in Chã Grande?
How many days does it rain in September in Chã Grande?
How many hours of daylight does Chã Grande have in September?
What time are sunrise and sunset in September in Chã Grande?
How long on average sun shines in September in Chã Grande?
What is the month with the highest UV index in Chã Grande?
What is the UV index intensity in September in Chã Grande?
Average temperature in September
Chã Grande, Brazil
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is July (25.8°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is March (21.7°C).
The coldest month (with the lowest average low temperature) is August (18.4°C).
Average pressure in September
Chã Grande, Brazil
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is August (1016.7mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).
Average wind speed in September
Chã Grande, Brazil
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is August (12.2km/h).
The calmest month (with the lowest average wind speed) is April (8.7km/h).
Average humidity in September
Chã Grande, Brazil
- Average humidity in September: 83%
The months with the highest relative humidity are June and July (88%).
The month with the lowest relative humidity is December (76%).
Average rainfall in September
Chã Grande, Brazil
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is March (71mm).
The driest month (with the least rainfall) is November (15mm).
Average rainfall days in September
Chã Grande, Brazil
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (15.3 days).
Average daylight in September /
Average sunshine in September
Chã Grande, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is March (Average sunshine: 6h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 12min).
Average sunshine days in September
Chã Grande, Brazil
- Average sunshine days in September: 5.8 days
The month with the most sunshine days is December (10.7 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
Chã Grande, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in September
Chã Grande, Brazil
- Average cloud cover in September: 59
The month with the most cloud cover is July (Cloud cover 68).
The months with the least cloud cover are March and November (Cloud cover 52).
Average visibility in September
Chã Grande, Brazil
- Average visibility in September: 7km
The months with the highest visibility are January, February, November and December (9km).
The months with the lowest visibility are May, June, July and August (6km).
