December weather forecastLapão, Brazil
December
Weather in December
The first month of the summer, December, is still a hot month in Lapão, Brazil, with an average temperature varying between 20.3°C (68.5°F) and 30.5°C (86.9°F).Temperature
Lapão measures an average high-temperature of a still tropical 30.5°C (86.9°F) in December, nearly consistent with the preceding month. Throughout December, Lapão anticipates an average low-temperature of 20.3°C (68.5°F).Heat index
During December, the heat index is computed to be a sweltering 35°C (95°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
The average relative humidity in December is 64%.Rainfall
In December, the rain falls for 14.6 days. Throughout December, 78mm (3.07") of precipitation is accumulated. Throughout the year, there are 110.5 rainfall days, and 525mm (20.67") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 12h and 48min of daylight.On the first day of the month, sunrise is at 05:14 and sunset at 17:58. On the last day of December, sunrise is at 05:27 and sunset at 18:14 -03.
Sunshine
In Lapão, the average sunshine in December is 10.3h.UV index
January through August and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: During December, 6 as the daily maximum UV index converts into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lapão, Brazil
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is October (31.5°C).
The month with the lowest average high temperature is July (27.2°C).
- Average low temperature in December: 20.3°C
The month with the highest average low temperature is November (20.7°C).
The coldest month (with the lowest average low temperature) is July (17.2°C).
Average pressure in December
Lapão, Brazil
- Average pressure in December: 1012mbar
The month with the highest atmospheric pressure is July (1017.6mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in December
Lapão, Brazil
- Average wind speed in December: 14.8km/h
The windiest months (with the highest average wind speed) are August and September (21.3km/h).
The calmest month (with the lowest average wind speed) is March (13.6km/h).
Average humidity in December
Lapão, Brazil
- Average humidity in December: 64%
The month with the highest relative humidity is April (71%).
The months with the lowest relative humidity are September and October (56%).
Average rainfall in December
Lapão, Brazil
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is February (90mm).
The driest months (with the least rainfall) are June, July and August (2mm).
Average rainfall days in December
Lapão, Brazil
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (1.7 days).
Average daylight in December /
Average sunshine in December
Lapão, Brazil
- Average daylight in December: 12h and 48min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in December: 10h and 18min
The months with the most sunshine are January and February (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).
Average sunshine days in December
Lapão, Brazil
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (24.2 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in December
Lapão, Brazil
- Average UV index in December: 6
The months with the highest UV index are September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August and December (UV index 6).
Average cloud cover in December
Lapão, Brazil
- Average cloud cover in December: 33
The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 21).
Average visibility in December
Lapão, 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).





