Bahía Blanca
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Bahía Blanca, Argentina

The first month of the summer, December, is also a moderately hot month in Bahía Blanca, Argentina, with average temperature fluctuating between 28.9°C (84°F) and 14.2°C (57.6°F).

Temperature

In Bahía Blanca, Argentina, the average high-temperature slightly increases, from 25.6°C (78.1°F) in November, to a still moderately hot 28.9°C (84°F). In December, the average low-temperature is 14.2°C (57.6°F).

Humidity

In December, the average relative humidity in Bahía Blanca is 53%.

Rainfall

In Bahía Blanca, during December, the rain falls for 8 days and regularly aggregates up to 70.8mm (2.8") of precipitation. Throughout the year, there are 79 rainfall days, and 645.4mm (25.4") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 18°C (64.4°F). 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

The month with the longest days in Bahía Blanca is December, with an average of 14.8h of daylight.

Sunshine

In Bahía Blanca, Argentina, the average sunshine is 8.6h.

UV index

In December, the average daily maximum UV index is 11. A UV Index of 11, and more, symbolizes an excessive health risk from unsafe exposure to the UV radiation for average individuals.
The average daily UV index of 11 transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system.

What is the temperature in December in Bahía Blanca?

In December, in Bahía Blanca, Argentina, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 14.2°C (57.6°F).

What is the average humidity in December in Bahía Blanca?

In Bahía Blanca, the average relative humidity in December is 53%.

How much does it rain in Bahía Blanca in December?

In Bahía Blanca, Argentina, in December, it is raining for 8 days, with typically 70.8mm (2.8") of accumulated precipitation.

What is the sea temperature in December in Bahía Blanca?

In Bahía Blanca, in December, the average water temperature is 18°C (64.4°F). For swimming, a surface water temperature of 18°C (64.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

When are the longest days in Bahía Blanca?

December has the longest days of the year, with an average of 14.8h of daylight.

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

The average length of the day in December in Bahía Blanca is 14.8h.

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

In December, the average sunshine is 8.6h.

How high is the UV index in December in Bahía Blanca?

The average daily maximum UV index in December is 11. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unprotected exposure to the UV radiation.
Average temperature in December - Bahía Blanca, Argentina
  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is January (30.6°C).
The month with the lowest average high temperature is July (13.7°C).

  • Average low temperature in December: 14.2°C

The month with the highest average low temperature is January (15.7°C).
The coldest month (with the lowest average low temperature) is July (3°C).

Average humidity in December - Bahía Blanca, Argentina
  • Average humidity in December: 53%

Months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (52%).

Average rainfall in December - Bahía Blanca, Argentina
  • Average rainfall in December: 70.8mm

The wettest month (with the highest rainfall) is March (89.6mm).
The driest month (with the lowest rainfall) is June (25.5mm).

Average rainfall days in December - Bahía Blanca, Argentina
  • Average rainfall days in December: 8 days

The month with the highest number of rainy days is October (9 days).
Months with the lowest number of rainy days are June and August (5 days).

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

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

Average daylight in December / Average sunshine in December - Bahía Blanca, Argentina
  • Average daylight in December: 14.8h

The month with the longest days is December (Average daylight: 14.8h).
The month with shortest days is June (Average daylight: 9.5h).

  • Average sunshine in December: 8.6h

The month with most sunshine is January (Average sunshine: 9.7h).
The month with least sunshine is July (Average sunshine: 3.6h).

Average UV index in December - Bahía Blanca, Argentina
  • Average UV index in December: 11

The month with the highest UV index is January (UV index 12).
Months with the lowest UV index are June and July (UV index 2).