September weather forecastArari, Brazil
September
Weather in September
The first month of the spring, September, is still a tropical month in Arari, Brazil, with an average temperature ranging between max 34.5°C (94.1°F) and min 22.5°C (72.5°F).Temperature
The transition into September marks the average high-temperature at a still hot 34.5°C (94.1°F), differing minimally from August's 33.3°C (91.9°F). In Arari, September nights witness a remarkable decline from the day's zenith to a pleasant 22.5°C (72.5°F).Heat index
The heat index value for September is appraised at a blazing hot 49°C (120.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.Heat index values are typically calculated for conditions of shade and a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. 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 highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The average relative humidity in September is 70%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 14mm (0.55") of precipitation.Daylight
In Arari, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:57 and sunset at 18:00. On the last day of September, sunrise is at 05:44 and sunset at 17:53 -03.
Sunshine
In Arari, Brazil, the average sunshine in September is 7.6h.UV index
The months with the highest UV index are May, July through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arari, Brazil
- Average high temperature in September: 34.5°C
The warmest month (with the highest average high temperature) is October (35.1°C).
The month with the lowest average high temperature is April (30.2°C).
- Average low temperature in September: 22.5°C
The month with the highest average low temperature is November (23.8°C).
The coldest month (with the lowest average low temperature) is July (21.2°C).
Average pressure in September
Arari, Brazil
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.2mbar).
Average wind speed in September
Arari, Brazil
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is October (8.6km/h).
The calmest month (with the lowest average wind speed) is April (5.1km/h).
Average humidity in September
Arari, Brazil
- Average humidity in September: 70%
The months with the highest relative humidity are March, April and May (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Arari, Brazil
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is April (250mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Arari, Brazil
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is March (30.6 days).
The month with the least rainy days is September (10.7 days).
Average daylight in September /
Average sunshine in September
Arari, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is May (Average sunshine: 5h and 48min).
Average sunshine days in September
Arari, Brazil
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is March (0 days).
Average UV index in September
Arari, Brazil
- Average UV index in September: 7
The months with the highest UV index are May, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, June and December (UV index 6).
Average cloud cover in September
Arari, Brazil
- Average cloud cover in September: 37
The months with the most cloud cover are March and April (Cloud cover 68).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Arari, Brazil
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are February, March, April and May (6km).
