September weather forecast
Maceió, Brazil

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Weather in September

Maceió greets September with an uptick in temperature alongside reduced rain. Notably, the volume of rainfall falls again, allowing the city to dry more thoroughly from the previous rains. Sunshine hours and daylight lengths continue to compete with each other, providing the city with pleasingly radiant days. Along with the deceasing rainfall, the humidity also reduces gradually. Hence, the onset of September signals a clear, sunnier, and less humid Maceió than the preceding months.

Temperature

Maceió records an average high-temperature of a still moderately hot 27.8°C (82°F) in September, closely mirroring the climate of the previous month. September nights are marked by an average temperature drop to an agreeable 20.7°C (69.3°F).

Heat index

September's heat index is evaluated at a tropical 31°C (87.8°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The average relative humidity in September in Maceió is 77.2%.

Rainfall

In Maceió, in September, during 15 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Maceió, during the entire year, the rain falls for 185 days and collects up to 2071mm (81.54") of precipitation.

Sea temperature

In September, the average sea temperature in Maceió is 26.3°C (79.3°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In September, the average length of the day in Maceió is 12h and 3min.
On the first day of the month, sunrise is at 05:24 and sunset at 17:20. On the last day of September, in Maceió, sunrise is at 05:07 and sunset at 17:18 -03.

Sunshine

In September, the average sunshine in Maceió is 6.8h.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 12 during September translates into the following directions:
Undertake all key precautions, as unprotected skin and eyes may get burns in no time. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Broad-spectrum sunscreen with an SPF of 30 or more should be applied liberally every two hours and directly after outdoor activities or swimming. Attention! UV radiation is markedly stronger with water and sand reflections.
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Frequently asked questions

What are the temperatures in Maceió in September?

The high-temperature in Maceió, Brazil, during September is 27.8°C (82°F) and the low-temperature is 20.7°C (69.3°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 31°C (87.8°F).

What is the average humidity in September in Maceió?

The average relative humidity in September in Maceió is 77.2%.

How many days does it rain in September in Maceió?

In Maceió, in September, it is raining for 15 days, with typically 130mm (5.12") of accumulated precipitation.

What is the sea water temperature in September in Maceió?

In Maceió, Brazil, in September, the average water temperature is 26.3°C (79.3°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Maceió?

In Maceió, Brazil, the average day length in September is 12h and 3min.

When is the sunrise / sunset in September in Maceió?

In September, on the first day of the month, sunrise is at 05:24 and sunset at 17:20. On the last day of the month, in Maceió, sunrise is at 05:07 and sunset at 17:18 -03.

How long on average sun shines in September in Maceió?

The average sunshine duration in September in Maceió, Brazil, is 6.8h.

What are the months with the highest UV index in Maceió?

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index in Maceió, Brazil.

What is the UV index reading in September in Maceió?

The average daily maximum UV index in September is 12. A UV Index of 11, and more, symbolizes an extreme health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Maceió, Brazil

Average temperature in September - Maceió, Brazil
  • Average high temperature in September: 27.8°C

The warmest month (with the highest average high temperature) is February (30.4°C).
The month with the lowest average high temperature is July (27°C).

  • Average low temperature in September: 20.7°C

The month with the highest average low temperature is March (22.7°C).
The coldest month (with the lowest average low temperature) is August (20.2°C).

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Average humidity in September
Maceió, Brazil

Average humidity in September - Maceió, Brazil
  • Average humidity in September: 77.2%

The month with the highest relative humidity is May (82.6%).
The month with the lowest relative humidity is November (74.7%).

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Average rainfall in September
Maceió, Brazil

Average rainfall in September - Maceió, Brazil
  • Average rainfall in September: 130.3mm

The wettest month (with the highest rainfall) is May (382.2mm).
The driest month (with the least rainfall) is November (31.7mm).

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Average rainfall days in September
Maceió, Brazil

Average rainfall days in September - Maceió, Brazil
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is June (24 days).
The month with the least rainy days is November (6 days).

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Average sea temperature in September
Maceió, Brazil

Average sea temperature in September - Maceió, Brazil
  • Average sea temperature in September: 26.3°C

The best months for swimming (with the highest average sea temperature) are March and April (28.8°C).
The coldest month (with the lowest average sea temperature) is August (26.1°C).

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Average daylight in September /
Average sunshine in September
Maceió, Brazil

Average daylight in September / Average sunshine in September - Maceió, Brazil
  • Average daylight in September: 12h and 1min

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: 6h and 5min

The month with the most sunshine is November (Average sunshine: 9h and 12min).
The month with the least sunshine is July (Average sunshine: 5h and 42min).

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Average UV index in September
Maceió, Brazil

Average UV index in September - Maceió, Brazil
  • Average UV index in September: 12

The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 9).

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Maceió, Brazil

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