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
Weather in September
Temperature
Barra's weather in September indicates an average high-temperature of a still hot 31.6°C (88.9°F), nearly consistent with the 30.2°C (86.4°F) of August. September in Barra sees the temperature falling to a mean low of 21°C (69.8°F).Heat index
In September, the heat index is calculated to be a tropical 34°C (93.2°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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
With an average relative humidity of 51%, September is the least humid month in Barra.Rainfall
January through July, September through December are months with rainfall in Barra. September is the first month it rains. Throughout September, in the average 1 rainfall days, it receives 1mm (0.04") of precipitation. In Barra, during the entire year, the rain falls for 121.7 days and collects up to 646mm (25.43") of precipitation.Daylight
The average length of the day in September is 12h and 3min.On the first day of the month, sunrise is at 05:55 and sunset at 17:49. On the last day of September, sunrise is at 05:36 and sunset at 17:48 -03.
Sunshine
In Barra, the average sunshine in September is 10h.UV index
The months with the highest UV index are January through May, August through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot is it in Barra in September?
What is the least humid month in Barra?
What is the average humidity in September in Barra?
When does it start raining in Barra?
How many hours of daylight does Barra have in September?
When are sunrise and sunset in September in Barra?
How many hours of sunshine does Barra have in September?
What is the month with the highest UV index in Barra?
How high is the UV index in September in Barra?
Average temperature in September
Barra, Brazil
- Average high temperature in September: 31.6°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are June and July (29.6°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is November (23°C).
The coldest month (with the lowest average low temperature) is July (19.5°C).
Average pressure in September
Barra, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in September
Barra, Brazil
- Average wind speed in September: 17.3km/h
The windiest month (with the highest average wind speed) is September (17.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity in September
Barra, Brazil
- Average humidity in September: 51%
The months with the highest relative humidity are March and April (71%).
The month with the lowest relative humidity is September (51%).
Average rainfall in September
Barra, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (121mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days in September
Barra, Brazil
- Average rainfall days in September: 1 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (0.2 days).
Average daylight in September /
Average sunshine in September
Barra, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is January (Average sunshine: 11h and 0min).
The months with the least sunshine are June and July (Average sunshine: 7h and 36min).
Average sunshine days in September
Barra, Brazil
- Average sunshine days in September: 28.9 days
The month with the most sunshine days is August (30.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in September
Barra, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, August, September, October and November (UV index 7).
The months with the lowest UV index are June, July and December (UV index 6).
Average cloud cover in September
Barra, Brazil
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are August and September (Cloud cover 9).
Average visibility in September
Barra, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Barra, Brazil
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