Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Transitioning into December, Portão experiences an average high-temperature of a still moderately hot 28.7°C (83.7°F), marking a minor shift from the preceding month. During December, the temperature in Portão is averaged to a low of 17.9°C (64.2°F) at night.Heat index
For December, the heat index is computed to be a tropical 33°C (91.4°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
The least humid month is December, with an average relative humidity of 75%.Rainfall
In Portão, in December, during 11.4 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Portão, during the entire year, the rain falls for 118.4 days and collects up to 272mm (10.71") of precipitation.Daylight
The month with the longest days is December, with an average of 14h and 0min of daylight.On the first day of the month, sunrise is at 05:16 and sunset at 19:11. On the last day of December, in Portão, sunrise is at 05:27 and sunset at 19:28 -03.
Sunshine
December has the most sunshine of the year in Portão, with an average of 8.6h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during December translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
Is it hot in Portão during December?
What is the least humid month in Portão?
What is the average humidity in December in Portão?
How many days does it rain in December in Portão?
When are the longest days in Portão?
How many hours of daylight does Portão have in December?
What time are sunrise and sunset in December in Portão?
What month has the most sunshine in Portão?
How many hours of sunshine does Portão have in December?
What is the month with the highest UV index in Portão?
What is the UV index intensity in December in Portão?
Average temperature in December
Portão, Brazil
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is February (29.3°C).
The month with the lowest average high temperature is July (18.3°C).
- Average low temperature in December: 17.9°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).
Average pressure in December
Portão, Brazil
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is July (1019.9mbar).
The month with the lowest atmospheric pressure is December (1011.5mbar).
Average wind speed in December
Portão, Brazil
- Average wind speed in December: 9.5km/h
The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is May (8.6km/h).
Average humidity in December
Portão, Brazil
- Average humidity in December: 75%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is December (75%).
Average rainfall in December
Portão, Brazil
- Average rainfall in December: 22mm
The wettest months (with the highest rainfall) are January and October (30mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in December
Portão, Brazil
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is January (12.8 days).
The month with the least rainy days is June (7.7 days).
Average daylight in December /
Average sunshine in December
Portão, 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 18min).
- Average sunshine in December: 8h and 4min
The month with the most sunshine is December (Average sunshine: 8h and 36min).
The month with the least sunshine is May (Average sunshine: 7h and 18min).
Average sunshine days in December
Portão, Brazil
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is July (21.4 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in December
Portão, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 4).
Average cloud cover in December
Portão, Brazil
- Average cloud cover in December: 32
The month with the most cloud cover is May (Cloud cover 39).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in December
Portão, Brazil
- Average visibility in December: 9km
The months with the highest visibility are February, April, June, July, August, November and December (9km).
The months with the lowest visibility are January, March, May, September and October (8km).
Portão, Brazil
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