December weather forecastPartenon, Brazil
December
Weather in December
The first month of the summer, December, is still a warm month in Partenon, Brazil, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 19°C (66.2°F).Temperature
Partenon records an average high-temperature of a still warm 29.8°C (85.6°F) as December arrives, nearly mirroring the previous month's climate. Throughout December, Partenon witnesses a nighttime temperature average of 19°C (66.2°F).Heat index
December's mean heat index is evaluated at a sweltering 35°C (95°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The least humid month in Partenon is December, with an average relative humidity of 71%.Rainfall
In Partenon, in December, it is raining for 13.7 days, with typically 60mm (2.36") of accumulated precipitation. In Partenon, Brazil, during the entire year, the rain falls for 148.3 days and collects up to 805mm (31.69") of precipitation.Daylight
The month with the longest days in Partenon is December, with an average of 14h and 0min of daylight.On the first day of December, sunrise is at 05:15 and sunset at 19:12. On the last day of the month, sunrise is at 05:26 and sunset at 19:29 -03.
Sunshine
The month with the most sunshine is December, with an average of 8.3h of sunshine.UV index
With an average maximum UV index of 7, December is the month with the highest UV index in Partenon. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 during December leads to these advisories:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Partenon, Brazil
- Average high temperature in December: 29.8°C
The warmest month (with the highest average high temperature) is February (30.5°C).
The month with the lowest average high temperature is July (18.8°C).
- Average low temperature in December: 19°C
The months with the highest average low temperature are January and February (20°C).
The coldest month (with the lowest average low temperature) is July (10.6°C).
Average pressure in December
Partenon, Brazil
- Average pressure in December: 1011.4mbar
The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).
Average wind speed in December
Partenon, Brazil
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is October (12.1km/h).
The calmest month (with the lowest average wind speed) is May (10km/h).
Average humidity in December
Partenon, Brazil
- Average humidity in December: 71%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is December (71%).
Average rainfall in December
Partenon, Brazil
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is July (103mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in December
Partenon, Brazil
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is October (15 days).
The month with the least rainy days is April (9.8 days).
Average daylight in December /
Average sunshine in December
Partenon, Brazil
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 12min).
- Average sunshine in December: 8h and 18min
The month with the most sunshine is December (Average sunshine: 8h and 18min).
The month with the least sunshine is September (Average sunshine: 7h and 0min).
Average sunshine days in December
Partenon, Brazil
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is May (19.9 days).
The month with the least sunshine days is September (14.4 days).
Average UV index in December
Partenon, Brazil
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Partenon, Brazil
- Average cloud cover in December: 33
The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 32).
Average visibility in December
Partenon, Brazil
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





