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
September begins with an average high-temperature of a still warm 28.6°C (83.5°F), reflecting close similarity to the preceding month. Throughout September, Montanhas witnesses a consistent average low-temperature of 21.9°C (71.4°F).Heat index
During September, the heat index is appraised at a hot 33°C (91.4°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
The average relative humidity in September in Montanhas is 77%.Rainfall
In Montanhas, during September, the rain falls for 17.1 days and regularly aggregates up to 20mm (0.79") of precipitation. In Montanhas, during the entire year, the rain falls for 199.6 days and collects up to 460mm (18.11") of precipitation.Daylight
In September, the average length of the day in Montanhas, Brazil, is 12h and 4min.On the first day of September, sunrise is at 05:21 and sunset at 17:20. On the last day of the month, sunrise is at 05:06 and sunset at 17:15 -03.
Sunshine
The average sunshine in September in Montanhas is 7.5h.UV index
The months with the highest UV index in Montanhas are January through March, September through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 7 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Montanhas in September?
What is the average humidity in September in Montanhas?
How much does it rain in Montanhas in September?
How many hours of daylight does Montanhas have in September?
When are sunrise and sunset in September in Montanhas?
How many hours of sunshine does Montanhas have in September?
What is the month with the highest UV index in Montanhas?
What is the UV index reading in September in Montanhas?
Average temperature in September
Montanhas, Brazil
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is March (31.3°C).
The month with the lowest average high temperature is July (27.5°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is February (24.4°C).
The coldest month (with the lowest average low temperature) is August (21.4°C).
Average pressure in September
Montanhas, Brazil
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is August (1015.7mbar).
The month with the lowest atmospheric pressure is February (1011.6mbar).
Average wind speed in September
Montanhas, 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 April (12.2km/h).
Average humidity in September
Montanhas, Brazil
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (71%).
Average rainfall in September
Montanhas, Brazil
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is July (75mm).
The driest month (with the least rainfall) is November (11mm).
Average rainfall days in September
Montanhas, Brazil
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (23.8 days).
The month with the least rainy days is November (12.6 days).
Average daylight in September /
Average sunshine in September
Montanhas, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are January, March and November (Average sunshine: 7h and 48min).
The month with the least sunshine is July (Average sunshine: 6h and 12min).
Average sunshine days in September
Montanhas, Brazil
- Average sunshine days in September: 5.8 days
The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is July (4.5 days).
Average UV index in September
Montanhas, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in September
Montanhas, Brazil
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is March (Cloud cover 40).
Average visibility in September
Montanhas, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
