September weather forecastMari, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Mari, Brazil, with an average temperature fluctuating between 20.8°C (69.4°F) and 28.7°C (83.7°F).Temperature
September registers an average high-temperature of a still moderately hot 28.7°C (83.7°F), slightly varied from August's 27.8°C (82°F). September witnesses an average nighttime temperature of 20.8°C (69.4°F).Heat index
In September, the heat index is appraised at a tropical 34°C (93.2°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In Mari, the average relative humidity in September is 78%.Rainfall
In Mari, Brazil, in September, during 16.1 rainfall days, 16mm (0.63") of precipitation is typically accumulated. In Mari, during the entire year, the rain falls for 217.5 days and collects up to 510mm (20.08") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of the month, sunrise is at 05:21 and sunset at 17:20. On the last day of September, in Mari, sunrise is at 05:06 and sunset at 17:16 -03.
Sunshine
In September, the average sunshine is 7.3h.UV index
March through September and December, with an average maximum UV index of 6, are months with the lowest UV index in Mari. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mari, Brazil
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 20.8°C
The month with the highest average low temperature is February (24.1°C).
The coldest month (with the lowest average low temperature) is August (20.2°C).
Average pressure in September
Mari, Brazil
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is August (1015.9mbar).
The month with the lowest atmospheric pressure is February (1011.7mbar).
Average wind speed in September
Mari, Brazil
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is September (14.5km/h).
The calmest month (with the lowest average wind speed) is April (10.4km/h).
Average humidity in September
Mari, Brazil
- Average humidity in September: 78%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (71%).
Average rainfall in September
Mari, Brazil
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is April (83mm).
The driest month (with the least rainfall) is November (9mm).
Average rainfall days in September
Mari, Brazil
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (13.6 days).
Average daylight in September /
Average sunshine in September
Mari, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is March (Average sunshine: 7h and 30min).
The month with the least sunshine is July (Average sunshine: 6h and 0min).
Average sunshine days in September
Mari, Brazil
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is November (10.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Mari, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, October and November (UV index 7).
The months with the lowest UV index are March, April, May, June, July, August, September and December (UV index 6).
Average cloud cover in September
Mari, Brazil
- Average cloud cover in September: 47
The month with the most cloud cover is July (Cloud cover 56).
The month with the least cloud cover is November (Cloud cover 42).
Average visibility in September
Mari, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (8km).
