September weather forecastArapiraca, Brazil
September
Weather in September
September, the first month of the spring in Arapiraca, is still a warm month, with an average temperature varying between 27.9°C (82.2°F) and 18.7°C (65.7°F).Temperature
With September's advent, Arapiraca sees an average high-temperature of a still warm 27.9°C (82.2°F), subtly shifted from August's 26.5°C (79.7°F). During the nights in September, an average low-temperature of 18.7°C (65.7°F) is observed.Heat index
The heat index value for September is calculated to be a hot 32°C (89.6°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
In Arapiraca, the average relative humidity in September is 81%.Rainfall
In Arapiraca, Brazil, in September, during 17.3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. Throughout the year, there are 194.5 rainfall days, and 384mm (15.12") of precipitation is accumulated.Daylight
The average length of the day in September in Arapiraca is 12h and 3min.On the first day of the month, sunrise is at 05:28 and sunset at 17:24. On the last day of September, sunrise is at 05:10 and sunset at 17:22 -03.
Sunshine
In September, the average sunshine is 7.1h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during September translates into these guidelines:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arapiraca, Brazil
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is March (32.4°C).
The month with the lowest average high temperature is July (26°C).
- Average low temperature in September: 18.7°C
The months with the highest average low temperature are February and March (22.3°C).
The coldest month (with the lowest average low temperature) is August (18.3°C).
Average pressure in September
Arapiraca, Brazil
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is August (1017.3mbar).
The month with the lowest atmospheric pressure is March (1012.1mbar).
Average wind speed in September
Arapiraca, Brazil
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is November (15.1km/h).
The calmest month (with the lowest average wind speed) is May (9.4km/h).
Average humidity in September
Arapiraca, Brazil
- Average humidity in September: 81%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is December (70%).
Average rainfall in September
Arapiraca, Brazil
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is March (56mm).
The driest month (with the least rainfall) is November (9mm).
Average rainfall days in September
Arapiraca, Brazil
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (8.1 days).
Average daylight in September /
Average sunshine in September
Arapiraca, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 7h and 6min
The months with the most sunshine are November and December (Average sunshine: 8h and 18min).
The month with the least sunshine is July (Average sunshine: 5h and 36min).
Average sunshine days in September
Arapiraca, Brazil
- Average sunshine days in September: 8.4 days
The months with the most sunshine days are November and December (17.6 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in September
Arapiraca, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, November and December (UV index 7).
The month with the lowest UV index is May (UV index 5).
Average cloud cover in September
Arapiraca, Brazil
- Average cloud cover in September: 51
The month with the most cloud cover is July (Cloud cover 64).
The months with the least cloud cover are November and December (Cloud cover 35).
Average visibility in September
Arapiraca, Brazil
- Average visibility in September: 7km
The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are May, June, July and August (6km).
