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

December weather forecast and climate
Aracaju, Brazil

December, the first month of the summer, in Aracaju, is still a warm month, with average temperature ranging between max 29.1°C (84.4°F) and min 23.8°C (74.8°F).
The ideal sea water temperature of 27.3°C (81.1°F) and only 5 rainfall days, with 56.3mm (2.2") of accumulated rainfall, make December the best time for swimming and other water activities.

Temperature

In December, the average high-temperature in Aracaju is almost the same as in November - a still moderately hot 29.1°C (84.4°F). The average low-temperature, in December, is 23.8°C (74.8°F).

Heat index

In December, the average heat index is appraised at a hot 34.8°C (94.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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 Aracaju, Brazil, the average relative humidity is 79%.

Rainfall

In Aracaju, in December, during 5 rainfall days, 56.3mm (2.2") of precipitation is typically accumulated. In Aracaju, during the entire year, the rain falls for 133 days and collects up to 1695.3mm (66.7") of precipitation.

Sea temperature

In Aracaju, the average seawater temperature is 27.3°C (81.1°F).
Note: 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.

Daylight

With an average of 12.8h of daylight, December has the longest days of the year.

Sunshine

In Aracaju, Brazil, the average sunshine in December is 8.1h.

What is the temperature in December in Aracaju?

The average high-temperature, in December, in Aracaju, Brazil, is 29.1°C (84.4°F), while the average low-temperature is 23.8°C (74.8°F). In December, the average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, is evaluated at 34.8°C (94.6°F).

What is the average humidity in December in Aracaju?

In Aracaju, Brazil, the average relative humidity in December is 79%.

How many days does it rain in December in Aracaju?

In Aracaju, in December, it is raining for 5 days, with typically 56.3mm (2.2") of accumulated precipitation.

What is the sea water temperature in December in Aracaju?

In December, the average sea temperature in Aracaju is 27.3°C (81.1°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.

When are the longest days in Aracaju?

With an average of 12.8h of daylight, December has the longest days of the year.

How many hours of daylight does Aracaju have in December?

The average length of the day in December is 12.8h.

How many hours of sunshine does Aracaju have in December?

In Aracaju, the average sunshine in December is 8.1h.
Average temperature in December - Aracaju, Brazil
  • Average high temperature in December: 29.1°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 December: 23.8°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 December - Aracaju, Brazil
  • Average humidity in December: 79%

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 December - Aracaju, Brazil
  • Average rainfall in December: 56.3mm

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 December - Aracaju, Brazil
  • Average rainfall days in December: 5 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 December - Aracaju, Brazil
  • Average sea temperature in December: 27.3°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 December / Average sunshine in December - Aracaju, Brazil
  • Average daylight in December: 12.8h

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 December: 8.1h

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