Santa Rosa
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Santa Rosa, Argentina

December, the first month of the summer, in Santa Rosa, is also a moderately hot month, with average temperature ranging between max 29.9°C (85.8°F) and min 14.5°C (58.1°F).

Temperature

In Santa Rosa, the average high-temperature marginally rises, from 26.6°C (79.9°F) in November, to a still warm 29.9°C (85.8°F). In December, the average low-temperature is 14.5°C (58.1°F).

Heat index

The average heat index in December is estimated at a hot 32.3°C (90.1°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, differences in body mass, height, and shape, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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

Months with the lowest humidity in Santa Rosa are January and December, with an average relative humidity of 58%.

Rainfall

In December, in Santa Rosa, Argentina, the rain falls for 9 days. Throughout December, 93.5mm (3.68") of precipitation is accumulated. In Santa Rosa, Argentina, during the entire year, the rain falls for 75 days and collects up to 685.8mm (27") of precipitation.

Daylight

The month with the longest days is December, with an average of 14.6h of daylight.

Sunshine

The average sunshine in December is 9.8h.

What is the temperature in December in Santa Rosa?

The average high-temperature, in December, is 29.9°C (85.8°F), while the average low-temperature is 14.5°C (58.1°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is calculated to 32.3°C (90.1°F).

What is the least humid month in Santa Rosa?

Months with the lowest humidity in Santa Rosa, Argentina, are January and December, with an average relative humidity of 58%.

What is the average humidity in December in Santa Rosa?

In Santa Rosa, Argentina, the average relative humidity in December is 58%.

How many days does it rain in December in Santa Rosa?

In December, the rain falls for 9 days. Throughout December, 93.5mm (3.68") of precipitation is accumulated.

When are the longest days in Santa Rosa?

The month with the longest days in Santa Rosa is December, with an average of 14.6h of daylight.

How many hours of daylight does Santa Rosa have in December?

The average length of the day in December is 14.6h.

How long on average sun shines in December in Santa Rosa?

The average sunshine in December in Santa Rosa, Argentina, is 9.8h.
Average temperature in December - Santa Rosa, Argentina
  • Average high temperature in December: 29.9°C

The warmest month (with the highest average high temperature) is January (31.4°C).
Months with the lowest average high temperature are June and July (14.7°C).

  • Average low temperature in December: 14.5°C

The month with the highest average low temperature is January (15.5°C).
The coldest month (with the lowest average low temperature) is July (1.9°C).

Average humidity in December - Santa Rosa, Argentina
  • Average humidity in December: 58%

The month with the highest relative humidity is June (79%).
Months with the lowest relative humidity are January and December (58%).

Average rainfall in December - Santa Rosa, Argentina
  • Average rainfall in December: 93.5mm

The wettest month (with the highest rainfall) is November (101mm).
The driest month (with the lowest rainfall) is June (16.3mm).

Average rainfall days in December - Santa Rosa, Argentina
  • Average rainfall days in December: 9 days

Months with the highest number of rainy days are October and December (9 days).
The month with the lowest number of rainy days is August (3 days).

Average daylight in December / Average sunshine in December - Santa Rosa, Argentina
  • Average daylight in December: 14.6h

The month with the longest days is December (Average daylight: 14.6h).
The month with shortest days is June (Average daylight: 9.7h).

  • Average sunshine in December: 9.8h

The month with most sunshine is January (Average sunshine: 10.3h).
The month with least sunshine is June (Average sunshine: 4.4h).