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
September's advent presents an average high-temperature of a still tropical 32.9°C (91.2°F), indicating a slight variation from the conditions of the previous month. Serra do Navio records a steady low-temperature average of 24.5°C (76.1°F) during September.Heat index
The heat index in September is calculated to be a blistering 44°C (111.2°F). Stay watchful: Heat exhaustion along with heat cramps are likely. Ongoing effort may cause heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In Serra do Navio, the average relative humidity in September is 73%.Rainfall
The months with the least rainfall in Serra do Navio are September and October Rain falls for 6 days and accumulates 6mm (0.24") of rain.Daylight
In September, the average length of the day in Serra do Navio is 12h and 7min.On the first day of the month, sunrise is at 06:23 and sunset at 18:31. On the last day of September, in Serra do Navio, sunrise is at 06:14 and sunset at 18:20 -03.
Sunshine
In September, the average sunshine is 9h.UV index
The months with the highest UV index are January through March, May through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
How hot does it get in Serra do Navio in September?
What is the average humidity in September in Serra do Navio?
What is the driest month in Serra do Navio?
How many days does it rain in September in Serra do Navio?
How many hours of daylight does Serra do Navio have in September?
When are sunrise and sunset in September in Serra do Navio?
How long on average sun shines in September in Serra do Navio?
What are the months with the highest UV index in Serra do Navio?
What is the UV index reading in September in Serra do Navio?
Average temperature in September
Serra do Navio, Brazil
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is March (29°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is November (24.8°C).
The coldest month (with the lowest average low temperature) is July (23.4°C).
Average pressure in September
Serra do Navio, Brazil
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is July (1012.8mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in September
Serra do Navio, Brazil
- Average wind speed in September: 11.1km/h
The windiest months (with the highest average wind speed) are October and November (11.5km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).
Average humidity in September
Serra do Navio, Brazil
- Average humidity in September: 73%
The months with the highest relative humidity are March and April (87%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in September
Serra do Navio, Brazil
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is December (53mm).
The driest months (with the least rainfall) are September and October (6mm).
Average rainfall days in September
Serra do Navio, Brazil
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is October (5.5 days).
Average daylight in September /
Average sunshine in September
Serra do Navio, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is March (Average sunshine: 6h and 0min).
Average sunshine days in September
Serra do Navio, Brazil
- Average sunshine days in September: 20.2 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Serra do Navio, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are April and December (UV index 6).
Average cloud cover in September
Serra do Navio, Brazil
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Serra do Navio, Brazil
- Average visibility in September: 10km
The months with the highest visibility are September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (8km).
Serra do Navio, Brazil
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