December weather forecastPiracicaba, Brazil
December
Weather in December
The first month of the summer, December, is still a warm month in Piracicaba, Brazil, with an average temperature ranging between max 29°C (84.2°F) and min 19.6°C (67.3°F).Temperature
The onset of December notes an average high-temperature of a still moderately hot 29°C (84.2°F), subtly shifted from November's 28.5°C (83.3°F). During the month of December, an average temperature of 19.6°C (67.3°F) is noted during the nights.Heat index
December's mean heat index is estimated at a sweltering 35°C (95°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Piracicaba, Brazil, the average relative humidity in December is 79%.Rainfall
In Piracicaba, in December, it is raining for 26.5 days, with typically 177mm (6.97") of accumulated precipitation. In Piracicaba, during the entire year, the rain falls for 208.3 days and collects up to 1276mm (50.24") of precipitation.Daylight
With an average of 13h and 30min of daylight, December has the longest days of the year in Piracicaba.On the first day of December in Piracicaba, Brazil, sunrise is at 05:16 and sunset at 18:42. On the last day of the month, sunrise is at 05:28 and sunset at 18:58 -03.
Sunshine
The average sunshine in December in Piracicaba is 7.9h.UV index
The months with the lowest UV index are February through July, September and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in December translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Piracicaba, Brazil
- Average high temperature in December: 29°C
The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is June (22.8°C).
- Average low temperature in December: 19.6°C
The month with the highest average low temperature is January (19.9°C).
The coldest month (with the lowest average low temperature) is June (13.6°C).
Average pressure in December
Piracicaba, Brazil
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in December
Piracicaba, Brazil
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is October (9.5km/h).
The calmest months (with the lowest average wind speed) are February and April (7km/h).
Average humidity in December
Piracicaba, Brazil
- Average humidity in December: 79%
The month with the highest relative humidity is March (85%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in December
Piracicaba, Brazil
- Average rainfall in December: 177mm
The wettest month (with the highest rainfall) is January (251mm).
The driest month (with the least rainfall) is August (25mm).
Average rainfall days in December
Piracicaba, Brazil
- Average rainfall days in December: 26.5 days
The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (5.5 days).
Average daylight in December /
Average sunshine in December
Piracicaba, Brazil
- Average daylight in December: 13h and 30min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in December: 7h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days in December
Piracicaba, Brazil
- Average sunshine days in December: 3.5 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (1.6 days).
Average UV index in December
Piracicaba, Brazil
- Average UV index in December: 5
The months with the highest UV index are January, August, October and November (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, September and December (UV index 5).
Average cloud cover in December
Piracicaba, Brazil
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Piracicaba, Brazil
- Average visibility in December: 9km
The months with the highest visibility are July, August, September, October, November and December (9km).
The month with the lowest visibility is May (7km).
