December weather forecast
Santo Hipólito, Brazil

December

Weather in December

December, the first month of the summer in Santo Hipólito, is also a moderately hot month, with an average temperature fluctuating between 27.9°C (82.2°F) and 19.8°C (67.6°F).

Temperature

Santo Hipólito's entry into December measures an average high-temperature of a still warm 27.9°C (82.2°F), closely parallel to the preceding month. Santo Hipólito experiences an average low-temperature of 19.8°C (67.6°F) in month of December.

Heat index

In December, the average heat index is computed to be a hot 32°C (89.6°F). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

In Santo Hipólito, the average relative humidity in December is 82%.

Rainfall

December is the month with the most rainfall. Rain falls for 27.3 days and accumulates 245mm (9.65") of precipitation.

Daylight

The month with the longest days in Santo Hipólito is December, with an average of 13h and 12min of daylight.
On the first day of December, sunrise is at 05:11 and sunset at 18:20. On the last day of the month, sunrise is at 05:23 and sunset at 18:36 -03.

Sunshine

December has the least sunshine of the year, with an average of 7.9h of sunshine.

UV index

The months with the highest UV index are January, March, April, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What are the temperatures in Santo Hipólito in December?
During December, Santo Hipólito experiences an average high-temperature of 27.9°C (82.2°F) and a low-temperature of 19.8°C (67.6°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in December is computed to be 32°C (89.6°F).
What is the average humidity in December in Santo Hipólito?
In Santo Hipólito, Brazil, the average relative humidity in December is 82%.
What is the wettest month in Santo Hipólito?
The month with the most rainfall in Santo Hipólito is December, when the rain falls for 27.3 days and typically aggregates up to 245mm (9.65") of precipitation.
How many days does it rain in December in Santo Hipólito?
In December, in Santo Hipólito, the rain falls for 27.3 days. Throughout December, 245mm (9.65") of precipitation is accumulated.
When are the longest days in Santo Hipólito?
December has the longest days of the year, with an average of 13h and 12min of daylight.
How many hours of daylight does Santo Hipólito have in December?
The average day length in December in Santo Hipólito, Brazil, is 13h and 13min.
When is the sunrise / sunset in December in Santo Hipólito?
On the first day of December, sunrise is at 05:11 and sunset at 18:20. On the last day of the month, sunrise is at 05:23 and sunset at 18:36 -03.
What is the month with the least sunshine in Santo Hipólito?
The month with the least sunshine in Santo Hipólito is December, with an average of 7.9h of sunshine.
How long on average sun shines in December in Santo Hipólito?
In December, the average sunshine duration in Santo Hipólito, Brazil, is 7.9h.
What are the months with the highest UV index in Santo Hipólito?
The months with the highest UV index in Santo Hipólito are January, March, April, June through December, with an average maximum UV index of 6.
How high is the UV index in December in Santo Hipólito?
The average daily maximum UV index in December in Santo Hipólito is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Santo Hipólito, Brazil
  • Average high temperature in December: 27.9°C

The warmest month (with the highest average high temperature) is September (31°C).
The month with the lowest average high temperature is June (25.7°C).

  • Average low temperature in December: 19.8°C

The months with the highest average low temperature are November and December (19.8°C).
The coldest month (with the lowest average low temperature) is July (14.3°C).

Average pressure in December
Santo Hipólito, Brazil
  • Average pressure in December: 1012.5mbar

The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1012.5mbar).

Average wind speed in December
Santo Hipólito, Brazil
  • Average wind speed in December: 7.2km/h

The windiest month (with the highest average wind speed) is September (9.3km/h).
The calmest months (with the lowest average wind speed) are March, April and May (6.3km/h).

Average humidity in December
Santo Hipólito, Brazil
  • Average humidity in December: 82%

The month with the highest relative humidity is March (84%).
The month with the lowest relative humidity is September (54%).

Average rainfall in December
Santo Hipólito, Brazil
  • Average rainfall in December: 245mm

The wettest month (with the highest rainfall) is December (245mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in December
Santo Hipólito, Brazil
  • Average rainfall days in December: 27.3 days

The month with the highest number of rainy days is December (27.3 days).
The month with the least rainy days is August (2.6 days).

Average daylight in December /
Average sunshine in December
Santo Hipólito, Brazil
  • Average daylight in December: 13h and 1min

The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).

  • Average sunshine in December: 7h and 5min

The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 7h and 54min).

Average sunshine days in December
Santo Hipólito, Brazil
  • Average sunshine days in December: 3.2 days

The month with the most sunshine days is August (27.4 days).
The month with the least sunshine days is December (3.2 days).

Average UV index in December
Santo Hipólito, Brazil
  • Average UV index in December: 6

The months with the highest UV index are January, March, April, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are February and May (UV index 5).

Average cloud cover in December
Santo Hipólito, Brazil
  • Average cloud cover in December: 47

The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in December
Santo Hipólito, Brazil
  • Average visibility in December: 8km

The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May and December (8km).

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