December weather forecastCaucaia, Brazil
December
Weather in December
The first month of the summer, December, is still a tropical month in Caucaia, Brazil, with an average temperature ranging between max 30.4°C (86.7°F) and min 25.6°C (78.1°F).Temperature
In Caucaia, October through December are characterised by the peak of temperatures, recording an average high of 30.4°C (86.7°F).Heat index
For most parts of December, the heat index is evaluated at a very hot 37°C (98.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In December, the average relative humidity is 73%.Rainfall
In Caucaia, Brazil, in December, it is raining for 17.1 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, in Caucaia, there are 225.8 rainfall days, and 890mm (35.04") of precipitation is accumulated.Sea temperature
In Caucaia, in December, the average water temperature is 27.8°C (82°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
With an average of 12h and 18min of daylight, December has the longest days of the year.On the first day of December in Caucaia, sunrise is at 05:14 and sunset at 17:33. On the last day of the month, sunrise is at 05:27 and sunset at 17:47 -03.
Sunshine
The average sunshine in December is 7.7h.UV index
The months with the highest UV index are January, February, May through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the UV index of 7 transforms into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Caucaia, Brazil
- Average high temperature in December: 30.4°C
The warmest months (with the highest average high temperature) are October, November and December (30.4°C).
The month with the lowest average high temperature is July (29.5°C).
- Average low temperature in December: 25.6°C
The month with the highest average low temperature is December (25.6°C).
The coldest month (with the lowest average low temperature) is July (23.5°C).
Average pressure in December
Caucaia, Brazil
- Average pressure in December: 1010.5mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in December
Caucaia, Brazil
- Average wind speed in December: 20.9km/h
The windiest month (with the highest average wind speed) is September (25.2km/h).
The calmest month (with the lowest average wind speed) is April (14.5km/h).
Average humidity in December
Caucaia, Brazil
- Average humidity in December: 73%
The months with the highest relative humidity are April and May (79%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in December
Caucaia, Brazil
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is April (180mm).
The driest months (with the least rainfall) are September and October (5mm).
Average rainfall days in December
Caucaia, Brazil
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is April (28 days).
The month with the least rainy days is September (7.4 days).
Average sea temperature in December
Caucaia, Brazil
- Average sea temperature in December: 27.8°C
The best month for swimming (with the highest average sea temperature) is April (28.9°C).
The coldest month (with the lowest average sea temperature) is September (26.6°C).
Average daylight in December /
Average sunshine in December
Caucaia, Brazil
- Average daylight in December: 12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 7h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 7h and 30min).
Average sunshine days in December
Caucaia, Brazil
- Average sunshine days in December: 5 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (1.2 days).
Average UV index in December
Caucaia, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and April (UV index 6).
Average cloud cover in December
Caucaia, Brazil
- Average cloud cover in December: 39
The months with the most cloud cover are March and April (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Caucaia, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
