September weather forecastAltinho, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Altinho, Brazil, with an average temperature ranging between min 17.9°C (64.2°F) and max 27.1°C (80.8°F).Temperature
The commencement of September introduces an average high-temperature of a still moderately hot 27.1°C (80.8°F), closely mirroring the preceding month. Altinho's average low-temperature during September nights is observed to be an enjoyable 17.9°C (64.2°F).Heat index
In September, the heat index is evaluated at a tropical 30°C (86°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
The average relative humidity in September is 81%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 10mm (0.39") of precipitation.Daylight
The average length of the day in September in Altinho, Brazil, is 12h and 4min.On the first day of the month, sunrise is at 05:25 and sunset at 17:22. On the last day of September, in Altinho, sunrise is at 05:08 and sunset at 17:19 -03.
Sunshine
In Altinho, the average sunshine in September is 6.2h.UV index
January through April, June, August through December, with an average maximum UV index of 6, are months with the highest UV index in Altinho. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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
Altinho, Brazil
- Average high temperature in September: 27.1°C
The warmest month (with the highest average high temperature) is March (30.5°C).
The month with the lowest average high temperature is July (25.5°C).
- Average low temperature in September: 17.9°C
The months with the highest average low temperature are February and March (20.8°C).
The coldest month (with the lowest average low temperature) is August (17.4°C).
Average pressure in September
Altinho, Brazil
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is August (1016.8mbar).
The months with the lowest atmospheric pressure are February and March (1012.2mbar).
Average wind speed in September
Altinho, Brazil
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is October (13.7km/h).
The calmest month (with the lowest average wind speed) is April (9.5km/h).
Average humidity in September
Altinho, Brazil
- Average humidity in September: 81%
The months with the highest relative humidity are May, June and July (86%).
The month with the lowest relative humidity is December (73%).
Average rainfall in September
Altinho, Brazil
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is March (67mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Altinho, Brazil
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is April (17.7 days).
The month with the least rainy days is November (12.5 days).
Average daylight in September /
Average sunshine in September
Altinho, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 6h and 12min
The month with the most sunshine is March (Average sunshine: 7h and 6min).
The month with the least sunshine is July (Average sunshine: 4h and 48min).
Average sunshine days in September
Altinho, Brazil
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is December (11.8 days).
The month with the least sunshine days is April (8.3 days).
Average UV index in September
Altinho, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, June, August, September, October, November and December (UV index 6).
The months with the lowest UV index are May and July (UV index 5).
Average cloud cover in September
Altinho, Brazil
- Average cloud cover in September: 62
The month with the most cloud cover is July (Cloud cover 73).
The months with the least cloud cover are March and November (Cloud cover 55).
Average visibility in September
Altinho, Brazil
- Average visibility in September: 7km
The months with the highest visibility are January, February, November and December (9km).
The months with the lowest visibility are April, May, June, July and August (6km).
