December weather forecastJacaraci, Brazil

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Jacaraci, Brazil, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 29°C (84.2°F).

Temperature

December denotes a minimal variation in the average high-temperature to a still warm 29°C (84.2°F) from November's 29.5°C (85.1°F). Nighttime temperature dips to a mean of 19.5°C (67.1°F) during December.

Heat index

Throughout December, the heat index is appraised at a tropical 34°C (93.2°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 17.4 days. Throughout December, 99mm (3.9") of precipitation is accumulated. Throughout the year, there are 127.4 rainfall days, and 611mm (24.06") of precipitation is accumulated.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:10 and sunset at 18:07. On the last day of December, in Jacaraci, sunrise is at 05:23 and sunset at 18:22 -03.

Sunshine

In Jacaraci, the average sunshine in December is 10h.

UV index

The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during December translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures in Jacaraci vary between a high-temperature of 29°C (84.2°F) and a low-temperature of 19.5°C (67.1°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in December is appraised at 34°C (93.2°F).

In Jacaraci, Brazil, the average relative humidity in December is 75%.

In Jacaraci, Brazil, in December, it is raining for 17.4 days, with typically 99mm (3.9") of accumulated precipitation.

The month with the longest days is December, with an average of 13h and 0min of daylight.

In Jacaraci, the average day length in December is 12h and 59min.

On the first day of December in Jacaraci, sunrise is at 05:10 and sunset at 18:07. On the last day of the month, sunrise is at 05:23 and sunset at 18:22 -03.

In December, the average sunshine duration in Jacaraci, Brazil, is 10h.

January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index.

In December, the average daily maximum UV index in Jacaraci is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

29.5°C

29°C

29.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.1km/h

10.5km/h

10.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

9.4

10.4

11.2

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Jacaraci, Brazil

Average high temperature in December: 29°C

The warmest month (with the highest average high temperature) is October (31.5°C).
The months with the lowest average high temperature are June and July (27.3°C).

Average low temperature in December: 19.5°C

The month with the highest average low temperature is November (19.9°C).
The coldest month (with the lowest average low temperature) is July (16.3°C).

Average pressure in December
Jacaraci, Brazil

Average pressure in December: 1012.4mbar

The month with the highest atmospheric pressure is July (1018.6mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).

Average wind speed in December
Jacaraci, Brazil

Average wind speed in December: 9.5km/h

The windiest month (with the highest average wind speed) is August (14.4km/h).
The calmest month (with the lowest average wind speed) is March (8.9km/h).

Average humidity in December
Jacaraci, Brazil

Average humidity in December: 75%

The months with the highest relative humidity are January, March and April (76%).
The month with the lowest relative humidity is September (54%).

Average rainfall in December
Jacaraci, Brazil

Average rainfall in December: 99mm

The wettest month (with the highest rainfall) is November (124mm).
The driest months (with the least rainfall) are July and August (1mm).

Average rainfall days in December
Jacaraci, Brazil

Average rainfall days in December: 17.4 days

The months with the highest number of rainy days are March and November (19.3 days).
The month with the least rainy days is August (0.9 days).

Average daylight in December /
Average sunshine in December
Jacaraci, Brazil

Average daylight in December: 13h and 0min

The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).

Average sunshine in December: 10h and 0min

The month with the most sunshine is February (Average sunshine: 10h and 24min).
The month with the least sunshine is May (Average sunshine: 7h and 6min).

Average sunshine days in December
Jacaraci, Brazil

Average sunshine days in December: 10.4 days

The month with the most sunshine days is August (29 days).
The month with the least sunshine days is November (9.4 days).

Average UV index in December
Jacaraci, Brazil

Average UV index in December: 6

The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).

Average cloud cover in December
Jacaraci, Brazil

Average cloud cover in December: 37

The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 14).

Average visibility in December
Jacaraci, Brazil

Average visibility in December: 9km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).