September weather forecastMilhã, Brazil
September
Weather in September
September, the first month of the spring in Milhã, is still a hot month, with an average temperature varying between 33.5°C (92.3°F) and 21.1°C (70°F).Temperature
Milhã records an average high-temperature of a still hot 33.5°C (92.3°F) as September arrives, nearly mirroring the previous month's climate. A marked difference from the daytime temperatures, Milhã's nighttime temperature falls to an average low of 21.1°C (70°F) in September.Heat index
Throughout September, the heat index is appraised at a fiery hot 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
September and October, with an average relative humidity of 52%, are the least humid months in Milhã.Rainfall
The month with the least rainfall in Milhã, Brazil, is September, when the rain falls for 6.1 days and typically collects 7mm (0.28") of precipitation.Daylight
In September, the average length of the day is 12h and 5min.On the first day of September, sunrise is at 05:36 and sunset at 17:36. On the last day of the month, sunrise is at 05:21 and sunset at 17:31 -03.
Sunshine
September has the most sunshine of the year in Milhã, with an average of 9.4h of sunshine.UV index
The months with the highest UV index are August through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Milhã, Brazil
- Average high temperature in September: 33.5°C
The warmest month (with the highest average high temperature) is October (34.2°C).
The month with the lowest average high temperature is June (29.5°C).
- Average low temperature in September: 21.1°C
The month with the highest average low temperature is December (23°C).
The coldest month (with the lowest average low temperature) is July (18.8°C).
Average pressure in September
Milhã, Brazil
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014.7mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).
Average wind speed in September
Milhã, Brazil
- Average wind speed in September: 15.9km/h
The windiest month (with the highest average wind speed) is November (17.4km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in September
Milhã, Brazil
- Average humidity in September: 52%
The month with the highest relative humidity is April (81%).
The months with the lowest relative humidity are September and October (52%).
Average rainfall in September
Milhã, Brazil
- Average rainfall in September: 7mm
The wettest month (with the highest rainfall) is March (132mm).
The driest month (with the least rainfall) is September (7mm).
Average rainfall days in September
Milhã, Brazil
- Average rainfall days in September: 6.1 days
The months with the highest number of rainy days are March and April (25.7 days).
The month with the least rainy days is September (6.1 days).
Average daylight in September /
Average sunshine in September
Milhã, 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 48min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is September (Average sunshine: 9h and 24min).
The month with the least sunshine is April (Average sunshine: 6h and 12min).
Average sunshine days in September
Milhã, Brazil
- Average sunshine days in September: 21 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is April (3 days).
Average UV index in September
Milhã, Brazil
- Average UV index in September: 7
The months with the highest UV index are August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and July (UV index 6).
Average cloud cover in September
Milhã, Brazil
- Average cloud cover in September: 23
The month with the most cloud cover is April (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in September
Milhã, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August, September, October, November and December (10km).
The months with the lowest visibility are March, April and May (8km).





