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

January weather forecast and climate
Aracaju, Brazil

January, the same as December, is a moderately hot summer month in Aracaju, Brazil, with average temperature fluctuating between 24.3°C (75.7°F) and 29.6°C (85.3°F).

Temperature

In Aracaju, the average high-temperature is almost the same as in December - a still moderately hot 29.6°C (85.3°F). In January, the average low-temperature is 24.3°C (75.7°F).

Heat index

In January, the average heat index is calculated to a sweltering 36°C (96.8°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 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', 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 (clothing, pregnancy, differences in body mass, height, and shape), and activity. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Aracaju, the average relative humidity is 78.1%.

Rainfall

In Aracaju, during January, the rain falls for 7 days and regularly aggregates up to 77.9mm (3.1") of precipitation. 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, in January, the average water temperature is 27.9°C (82.2°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

The average length of the day in January is 12.7h.

Sunshine

The average sunshine in January in Aracaju is 8.5h.

What is the temperature in January in Aracaju?

In January, in Aracaju, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 24.3°C (75.7°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in January is appraised at 36°C (96.8°F).

What is the average humidity in January in Aracaju?

The average relative humidity in January in Aracaju, Brazil, is 78.1%.

How many days does it rain in January in Aracaju?

In Aracaju, Brazil, during January, the rain falls for 7 days and regularly aggregates up to 77.9mm (3.1") of precipitation.

How warm is the water in January in Aracaju?

In Aracaju, Brazil, in January, the average water temperature is 27.9°C (82.2°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.

How many hours of daylight does Aracaju have in January?

The average length of the day in January in Aracaju is 12.7h.

How long on average sun shines in January in Aracaju?

In Aracaju, Brazil, the average sunshine in January is 8.5h.
Average temperature in January - Aracaju, Brazil
  • Average high temperature in January: 29.6°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 January: 24.3°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 January - Aracaju, Brazil
  • Average humidity in January: 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 January - Aracaju, Brazil
  • Average rainfall in January: 77.9mm

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 January - Aracaju, Brazil
  • Average rainfall days in January: 7 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 January - Aracaju, Brazil
  • Average sea temperature in January: 27.9°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 January / Average sunshine in January - Aracaju, Brazil
  • Average daylight in January: 12.7h

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 January: 8.5h

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