September weather forecastFormosa, Brazil
September
Weather in September
September, the first month of the spring in Formosa, is a tropical month, with an average temperature varying between 30.5°C (86.9°F) and 18.2°C (64.8°F).Temperature
September registers as the month with the highest average temperatures, reaching 30.5°C (86.9°F) at its peak and 18.2°C (64.8°F) at the lowest.Heat index
The heat index in September is evaluated at a hot 31°C (87.8°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
With an average relative humidity of 44%, September is the least humid month in Formosa, Brazil.Rainfall
In Formosa, in September, it is raining for 6.8 days, with typically 18mm (0.71") of accumulated precipitation. In Formosa, during the entire year, the rain falls for 221.1 days and collects up to 1464mm (57.64") of precipitation.Daylight
The average length of the day in September in Formosa is 12h and 1min.On the first day of the month, sunrise is at 06:14 and sunset at 18:03. On the last day of September, sunrise is at 05:52 and sunset at 18:06 -03.
Sunshine
The month with the most sunshine in Formosa is September, with an average of 9.7h of sunshine.UV index
The months with the highest UV index are January, August through October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Formosa, Brazil
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is May (24.7°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is October (19.5°C).
The coldest month (with the lowest average low temperature) is July (14°C).
Average pressure in September
Formosa, Brazil
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is July (1018.4mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Formosa, Brazil
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is August (9.3km/h).
The calmest month (with the lowest average wind speed) is March (6.2km/h).
Average humidity in September
Formosa, Brazil
- Average humidity in September: 44%
The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is September (44%).
Average rainfall in September
Formosa, Brazil
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is November (258mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Formosa, Brazil
- Average rainfall days in September: 6.8 days
The months with the highest number of rainy days are March and December (29.4 days).
The months with the least rainy days are July and August (2.3 days).
Average daylight in September /
Average sunshine in September
Formosa, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Formosa, Brazil
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in September
Formosa, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, August, September and October (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, November and December (UV index 5).
Average cloud cover in September
Formosa, Brazil
- Average cloud cover in September: 16
The months with the most cloud cover are March and April (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Formosa, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May and December (7km).
