September weather forecastFortim, Brazil
September
Weather in September
The first month of the spring, September, is still a tropical month in Fortim, Brazil, with an average temperature ranging between min 23.7°C (74.7°F) and max 31°C (87.8°F).Temperature
Fortim experiences an average high-temperature of a still hot 31°C (87.8°F) in September, subtly different from August's 30.9°C (87.6°F). The nighttime temperature, during September, averages of 23.7°C (74.7°F).Heat index
The heat index value during September is computed to be a sweltering 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The months with the lowest humidity in Fortim are August and September, with an average relative humidity of 68%.Rainfall
The month with the least rainfall is September, when the rain falls for 2.5 days and typically collects 1mm (0.04") of precipitation.Daylight
The average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:30 and sunset at 17:31. On the last day of September, sunrise is at 05:16 and sunset at 17:25 -03.
Sunshine
In September, the average sunshine is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Fortim, Brazil, are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 7 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fortim, Brazil
- Average high temperature in September: 31°C
The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is July (29.9°C).
- Average low temperature in September: 23.7°C
The months with the highest average low temperature are January, February and December (25.7°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in September
Fortim, Brazil
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Fortim, Brazil
- Average wind speed in September: 25.5km/h
The windiest month (with the highest average wind speed) is September (25.5km/h).
The calmest month (with the lowest average wind speed) is April (16.2km/h).
Average humidity in September
Fortim, Brazil
- Average humidity in September: 68%
The months with the highest relative humidity are April and May (77%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in September
Fortim, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is April (116mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days in September
Fortim, Brazil
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is April (22.3 days).
The month with the least rainy days is September (2.5 days).
Average daylight in September /
Average sunshine in September
Fortim, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 8h and 6min).
Average sunshine days in September
Fortim, Brazil
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is September (25.3 days).
The month with the least sunshine days is April (6.3 days).
Average UV index in September
Fortim, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Fortim, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is April (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Fortim, 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).
