December weather forecast
Bahía Blanca, Argentina

Weather in December

The first month of the summer, December, is also a moderately hot month in Bahía Blanca, Argentina, with an average temperature fluctuating between 28.5°C (83.3°F) and 17.1°C (62.8°F).

Temperature

In Bahía Blanca, the average high-temperature in December marginally rises from 23.8°C (74.8°F) in November to a still moderately hot 28.5°C (83.3°F). In Bahía Blanca, Argentina, in December, the average low-temperature is 17.1°C (62.8°F).

Heat index

In December, the average heat index is calculated to be 28°C (82.4°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, clothing, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The months with the lowest humidity in Bahía Blanca, Argentina, are January and December, with an average relative humidity of 44%.

Rainfall

In Bahía Blanca, in December, during 5.6 rainfall days, 21mm (0.83") of precipitation is typically accumulated. Throughout the year, in Bahía Blanca, there are 73.5 rainfall days, and 280mm (11.02") of precipitation is accumulated.

Snowfall

In Bahía Blanca, snow does not fall in January through June, August through December.

Sea temperature

In Bahía Blanca, the average seawater temperature in December is 18°C (64.4°F).
Note: Swimming in 18°C (64.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

December has the longest days of the year in Bahía Blanca, with an average of 14h and 50min of daylight.
On the first day of the month, sunrise is at 05:38 and sunset at 20:18. On the last day of December, sunrise is at 05:47 and sunset at 20:37 -03.

Sunshine

December has the most sunshine of the year, with an average of 11.7h of sunshine.

UV index

January through March and December, with an average maximum UV index of 6, are months with the highest UV index in Bahía Blanca. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in December interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in December in Bahía Blanca?

In December, in Bahía Blanca, Argentina, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 17.1°C (62.8°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in December is calculated to be 28°C (82.4°F).

What is the least humid month in Bahía Blanca?

January and December, with an average relative humidity of 44%, are the least humid months in Bahía Blanca.

What is the average humidity in December in Bahía Blanca?

The average relative humidity in December in Bahía Blanca, Argentina, is 44%.

How many days does it rain in December in Bahía Blanca?

In Bahía Blanca, during December, the rain falls for 5.6 days and regularly aggregates up to 21mm (0.83") of precipitation.

When it does not snow in Bahía Blanca?

January through June, August through December are months without snowfall in Bahía Blanca.

What is the sea temperature in December in Bahía Blanca?

In Bahía Blanca, the average seawater temperature in December is 18°C (64.4°F). For most, swimming in 18°C (64.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days in Bahía Blanca?

With an average of 14h and 50min of daylight, December has the longest days of the year in Bahía Blanca, Argentina.

What is the average length of the day in December in Bahía Blanca?

In December, the average day length in Bahía Blanca, Argentina, is 14h and 50min.

When is the sunrise / sunset in December in Bahía Blanca?

In December, on the first day of the month, sunrise is at 05:38 and sunset at 20:18. On the last day of the month, in Bahía Blanca, Argentina, sunrise is at 05:47 and sunset at 20:37 -03.

What month has the most sunshine in Bahía Blanca?

With an average of 11.7h of sunshine, December has the most sunshine of the year.

How many hours of sunshine does Bahía Blanca have in December?

In December, the average sunshine duration in Bahía Blanca, Argentina, is 11.7h.

What is the month with the highest UV index in Bahía Blanca?

January through March and December, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in December in Bahía Blanca?

The average daily maximum UV index in December in Bahía Blanca, Argentina, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Bahía Blanca, Argentina

Average temperature in December - Bahía Blanca, Argentina
  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is January (29.8°C).
The month with the lowest average high temperature is July (12.6°C).

  • Average low temperature in December: 17.1°C

The month with the highest average low temperature is January (18.9°C).
The coldest month (with the lowest average low temperature) is July (6.2°C).

[Resources]

Average pressure in December
Bahía Blanca, Argentina

Average pressure in December - Bahía Blanca, Argentina
  • Average pressure in December: 1009.7mbar

The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is December (1009.7mbar).

[Resources]

Average wind speed in December
Bahía Blanca, Argentina

Average wind speed in December - Bahía Blanca, Argentina
  • Average wind speed in December: 18.2km/h

The windiest month (with the highest average wind speed) is June (19.4km/h).
The calmest months (with the lowest average wind speed) are April and May (16.7km/h).

[Resources]

Average humidity in December
Bahía Blanca, Argentina

Average humidity in December - Bahía Blanca, Argentina
  • Average humidity in December: 44%

The months with the highest relative humidity are May and July (65%).
The months with the lowest relative humidity are January and December (44%).

[Resources]

Average rainfall in December
Bahía Blanca, Argentina

Average rainfall in December - Bahía Blanca, Argentina
  • Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is November (44mm).
The driest month (with the least rainfall) is June (12mm).

[Resources]

Average rainfall days in December
Bahía Blanca, Argentina

Average rainfall days in December - Bahía Blanca, Argentina
  • Average rainfall days in December: 5.6 days

The month with the highest number of rainy days is November (7.9 days).
The month with the least rainy days is June (3.9 days).

[Resources]

Average snowfall days in December
Bahía Blanca, Argentina

Average snowfall days in December - Bahía Blanca, Argentina
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).

[Resources]

Average sea temperature in December
Bahía Blanca, Argentina

Average sea temperature in December - Bahía Blanca, Argentina
  • Average sea temperature in December: 18°C

The best months for swimming (with the highest average sea temperature) are February and March (21°C).
The coldest months (with the lowest average sea temperature) are August and September (12°C).

[Resources]

Average daylight in December /
Average sunshine in December
Bahía Blanca, Argentina

Average daylight in December / Average sunshine in December - Bahía Blanca, Argentina
  • Average daylight in December: 14h and 50min

The month with the longest days is December (Average daylight: 14h and 50min).
The month with the shortest days is June (Average daylight: 9h and 30min).

  • Average sunshine in December: 11h and 42min

The month with the most sunshine is December (Average sunshine: 11h and 42min).
The month with the least sunshine is June (Average sunshine: 6h and 18min).

[Resources]

Average sunshine days in December
Bahía Blanca, Argentina

Average sunshine days in December - Bahía Blanca, Argentina
  • Average sunshine days in December: 24.2 days

The month with the most sunshine days is August (26.1 days).
The month with the least sunshine days is February (20.5 days).

[Resources]

Average UV index in December
Bahía Blanca, Argentina

Average UV index in December - Bahía Blanca, Argentina
  • Average UV index in December: 6

The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are June, July and September (UV index 3).

[Resources]

Average cloud cover in December
Bahía Blanca, Argentina

Average cloud cover in December - Bahía Blanca, Argentina
  • Average cloud cover in December: 14

The months with the most cloud cover are May and July (Cloud cover 30).
The month with the least cloud cover is January (Cloud cover 13).

[Resources]

Average visibility in December
Bahía Blanca, Argentina

Average visibility in December - Bahía Blanca, Argentina
  • Average visibility in December: 10km

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location