December weather forecastNatal, Brazil
December
Weather in December
December in Natal, Brazil ushers in higher temperatures, making it feel warmer. The city experiences a rise in rainfall with average totals of 27mm (1.06") for the month. Wind speeds drop slightly while sea temperatures continue a noticeable upward trajectory. The humidity levels stabilize to about 74%, making the weather suitable for outdoor activities. Despite the shift towards warmer, more humid weather, December retains an average level of sun-filled days, complementing the festive season atmosphere.Temperature
Shifting into December, Natal records an average high-temperature of a still warm 29.3°C (84.7°F), presenting minor fluctuations compared to the previous month. In Natal, the nocturnal temperatures throughout December show a marginal dip from the daytime averages, settling at a still warm 25.8°C (78.4°F).Heat index
The average heat index in December is calculated to be 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.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Natal, the average relative humidity in December is 74%.Rainfall
In Natal, during December, the rain falls for 17 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 195.4 rainfall days, and 692mm (27.24") of precipitation is accumulated.Sea temperature
In Natal, the average seawater temperature in December is 27.6°C (81.7°F).Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.
Daylight
The month with the longest days in Natal is December, with an average of 12h and 30min of daylight.On the first day of December, sunrise is at 04:56 and sunset at 17:23. On the last day of the month, sunrise is at 05:10 and sunset at 17:37 -03.
Sunshine
In December, the average sunshine is 8.2h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 7 in December translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Natal, Brazil
- Average high temperature in December: 29.3°C
The warmest month (with the highest average high temperature) is March (30.2°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in December: 25.8°C
The month with the highest average low temperature is March (26.3°C).
The coldest months (with the lowest average low temperature) are July and August (23.8°C).
Average pressure in December
Natal, Brazil
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is August (1015mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).
Average wind speed in December
Natal, Brazil
- Average wind speed in December: 22km/h
The windiest month (with the highest average wind speed) is September (26.2km/h).
The calmest months (with the lowest average wind speed) are March and April (17.9km/h).
Average humidity in December
Natal, Brazil
- Average humidity in December: 74%
The months with the highest relative humidity are June and July (79%).
The months with the lowest relative humidity are October and November (73%).
Average rainfall in December
Natal, Brazil
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is March (134mm).
The driest months (with the least rainfall) are September and October (7mm).
Average rainfall days in December
Natal, Brazil
- Average rainfall days in December: 17 days
The month with the highest number of rainy days is April (23.4 days).
The month with the least rainy days is September (8 days).
Average sea temperature in December
Natal, Brazil
- Average sea temperature in December: 27.6°C
The best months for swimming (with the highest average sea temperature) are March and April (28.8°C).
The coldest month (with the lowest average sea temperature) is September (26.7°C).
Average daylight in December /
Average sunshine in December
Natal, Brazil
- Average daylight in December: 12h and 30min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in December: 8h and 12min
The month with the most sunshine is October (Average sunshine: 8h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 0min).
Average sunshine days in December
Natal, Brazil
- Average sunshine days in December: 3.1 days
The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is February (1.3 days).
Average UV index in December
Natal, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Natal, Brazil
- Average cloud cover in December: 39
The month with the most cloud cover is July (Cloud cover 48).
The months with the least cloud cover are October and November (Cloud cover 37).
Average visibility in December
Natal, 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).
