Aracaju
Brazil
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Aracaju, Brazil

The first month of the spring, September, is still a warm month in Aracaju, Brazil, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 22.5°C (72.5°F).

Temperature

In Aracaju, the average high-temperature is almost the same as in August - a still moderately hot 27.4°C (81.3°F). In September, in Aracaju, the average low-temperature is 22.5°C (72.5°F).

Heat index

In September, the average heat index is appraised at a hot 30.4°C (86.7°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, metabolic differences, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in Aracaju, Brazil, is 78.1%.

Rainfall

In September, the rain falls for 10 days. Throughout September, 91.4mm (3.6") of precipitation is accumulated. Throughout the year, there are 133 rainfall days, and 1695.3mm (66.7") of precipitation is accumulated.

Sea temperature

In Aracaju, the average seawater temperature in September is 26°C (78.8°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in September is 12.1h.

Sunshine

The average sunshine in September in Aracaju is 7.3h.

What is the temperature in September in Aracaju?

In September, the average high-temperature is 27.4°C (81.3°F), and the average low-temperature is 22.5°C (72.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, in September is calculated to 30.4°C (86.7°F).

What is the average humidity in September in Aracaju?

In September, the average relative humidity in Aracaju is 78.1%.

How many days does it rain in September in Aracaju?

In Aracaju, Brazil, during September, the rain falls for 10 days and regularly aggregates up to 91.4mm (3.6") of precipitation.

How warm is the water in September in Aracaju?

In Aracaju, the average seawater temperature in September is 26°C (78.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Aracaju have in September?

The average length of the day in September is 12.1h.

How many hours of sunshine does Aracaju have in September?

The average sunshine in September in Aracaju is 7.3h.
Average temperature in September - Aracaju, Brazil
  • Average high temperature in September: 27.4°C

Warmest months (with the highest average high temperature) are February and March (29.8°C).
The month with the lowest average high temperature is August (26.9°C).

  • Average low temperature in September: 22.5°C

The month with the highest average low temperature is January (24.3°C).
Coldest months (with the lowest average low temperature) are July and August (21.6°C).

Average humidity in September - Aracaju, Brazil
  • Average humidity in September: 78.1%

The month with the highest relative humidity is April (79.6%).
The month with the lowest relative humidity is February (76.6%).

Average rainfall in September - Aracaju, Brazil
  • Average rainfall in September: 91.4mm

The wettest month (with the highest rainfall) is May (333.8mm).
The driest month (with the lowest rainfall) is November (52.3mm).

Average rainfall days in September - Aracaju, Brazil
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is June (18 days).
Months with the lowest number of rainy days are October, November and December (5 days).

Average sea temperature in September - Aracaju, Brazil
  • Average sea temperature in September: 26°C

Best months for swimming (with the highest average sea temperature) are March and April (28.7°C).
The coldest month (with the lowest average sea temperature) is August (25.8°C).

Average daylight in September / Average sunshine in September - Aracaju, Brazil
  • Average daylight in September: 12.1h

The month with the longest days is December (Average daylight: 12.8h).
Months with shortest days are June and July (Average daylight: 11.5h).

  • Average sunshine in September: 7.3h

The month with most sunshine is November (Average sunshine: 8.8h).
The month with least sunshine is June (Average sunshine: 5.9h).