December weather forecast
Barra de São Francisco, Brazil

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Weather in December

The first month of the summer, December, is still a warm month in Barra de São Francisco, Brazil, with temperature in the range of an average low of 19.8°C (67.6°F) and an average high of 27.6°C (81.7°F).

Temperature

In December, Barra de São Francisco experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 27.6°C (81.7°F), closely mirroring the climate in November. During December, the average low-temperature is a refreshing 19.8°C (67.6°F).

Heat index

In December, the average heat index is estimated at a tropical 32°C (89.6°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In Barra de São Francisco, the average relative humidity in December is 87%.

Rainfall

The month with the most rainfall is December, when the rain falls for 25.3 days and typically aggregates up to 186mm (7.32") of precipitation.

Daylight

December has the longest days of the year in Barra de São Francisco, with an average of 13h and 12min of daylight.
On the first day of December, sunrise is at 04:57 and sunset at 18:08. On the last day of the month, sunrise is at 05:09 and sunset at 18:24 -03.

Sunshine

The average sunshine in December is 6.6h.

UV index

The months with the lowest UV index in Barra de São Francisco are March through July, September through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 5 in December suggests the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the average December temperature in Barra de São Francisco?

In December, the average high-temperature and low-temperature in Barra de São Francisco, Brazil, are 27.6°C (81.7°F) and 19.8°C (67.6°F) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is estimated at 32°C (89.6°F).

What is the average humidity in December in Barra de São Francisco?

In Barra de São Francisco, the average relative humidity in December is 87%.

What is the rainiest month in Barra de São Francisco?

The month with the most rainfall in Barra de São Francisco is December, when the rain falls for 25.3 days and typically aggregates up to 186mm (7.32") of precipitation.

How much does it rain in Barra de São Francisco in December?

In Barra de São Francisco, in December, during 25.3 rainfall days, 186mm (7.32") of precipitation is typically accumulated.

When are the longest days in Barra de São Francisco?

December has the longest days of the year in Barra de São Francisco, Brazil, with an average of 13h and 12min of daylight.

How many hours of daylight does Barra de São Francisco have in December?

In Barra de São Francisco, the average day length in December is 13h and 14min.

When are sunrise and sunset in December in Barra de São Francisco?

On the first day of December in Barra de São Francisco, Brazil, sunrise is at 04:57 and sunset at 18:08. On the last day of the month, sunrise is at 05:09 and sunset at 18:24 -03.

How long on average sun shines in December in Barra de São Francisco?

The average sunshine duration in December in Barra de São Francisco, Brazil, is 6.6h.

What is the month with the lowest UV index in Barra de São Francisco?

March through July, September through December, with an average maximum UV index of 5, are months with the lowest UV index.

What is the UV index intensity in December in Barra de São Francisco?

In Barra de São Francisco, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.

Average temperature in December
Barra de São Francisco, Brazil

Average temperature in December - Barra de São Francisco, Brazil
  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is February (28.6°C).
The month with the lowest average high temperature is July (24.3°C).

  • Average low temperature in December: 19.8°C

The months with the highest average low temperature are January, February and December (19.8°C).
The coldest month (with the lowest average low temperature) is July (15.5°C).

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Average pressure in December
Barra de São Francisco, Brazil

Average pressure in December - Barra de São Francisco, Brazil
  • Average pressure in December: 1012.8mbar

The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).

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Average wind speed in December
Barra de São Francisco, Brazil

Average wind speed in December - Barra de São Francisco, Brazil
  • Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is October (9.7km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).

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Average humidity in December
Barra de São Francisco, Brazil

Average humidity in December - Barra de São Francisco, Brazil
  • Average humidity in December: 87%

The month with the highest relative humidity is April (88%).
The month with the lowest relative humidity is September (76%).

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Average rainfall in December
Barra de São Francisco, Brazil

Average rainfall in December - Barra de São Francisco, Brazil
  • Average rainfall in December: 186mm

The wettest month (with the highest rainfall) is December (186mm).
The driest month (with the least rainfall) is July (16mm).

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Average rainfall days in December
Barra de São Francisco, Brazil

Average rainfall days in December - Barra de São Francisco, Brazil
  • Average rainfall days in December: 25.3 days

The month with the highest number of rainy days is December (25.3 days).
The month with the least rainy days is July (13.3 days).

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Average daylight in December /
Average sunshine in December
Barra de São Francisco, Brazil

Average daylight in December / Average sunshine in December - Barra de São Francisco, 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 0min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is February (Average sunshine: 7h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).

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Average sunshine days in December
Barra de São Francisco, Brazil

Average sunshine days in December - Barra de São Francisco, Brazil
  • Average sunshine days in December: 4.5 days

The months with the most sunshine days are July and August (14.2 days).
The month with the least sunshine days is February (3.4 days).

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Average UV index in December
Barra de São Francisco, Brazil

Average UV index in December - Barra de São Francisco, Brazil
  • Average UV index in December: 5

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

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Average cloud cover in December
Barra de São Francisco, Brazil

Average cloud cover in December - Barra de São Francisco, Brazil
  • Average cloud cover in December: 67

The month with the most cloud cover is November (Cloud cover 70).
The month with the least cloud cover is September (Cloud cover 53).

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Average visibility in December
Barra de São Francisco, Brazil

Average visibility in December - Barra de São Francisco, Brazil
  • Average visibility in December: 6km

The months with the highest visibility are September and October (8km).
The months with the lowest visibility are January, February, March, April, May and December (6km).

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Barra de São Francisco, Brazil

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