December weather forecastRanelagh, Argentina

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Ranelagh, Argentina, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 18.5°C (65.3°F).

Temperature

December's arrival coincides with a marginal rise in the average high-temperature, moving from November's 23.6°C (74.5°F) to a still warm 27.4°C (81.3°F). In Ranelagh, December's nights observe an average temperature dip to a refreshing 18.5°C (65.3°F).

Heat index

In December, the heat index is computed to be 29°C (84.2°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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 December, the average relative humidity in Ranelagh is 61%.

Rainfall

In Ranelagh, during December, the rain falls for 7.2 days and regularly aggregates up to 21mm (0.83") of precipitation. Throughout the year, there are 83.4 rainfall days, and 197mm (7.76") of precipitation is accumulated.

Daylight

The month with the longest days in Ranelagh is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 05:32 and sunset at 19:51. On the last day of December, in Ranelagh, Argentina, sunrise is at 05:42 and sunset at 20:09 -03.

Sunshine

December has the most sunshine of the year in Ranelagh, with an average of 11.2h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 6 during December translates into the following guidance:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during December is 27.4°C (81.3°F) and the low-temperature is 18.5°C (65.3°F). In December, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is computed to be 29°C (84.2°F).

The average relative humidity in December in Ranelagh, Argentina, is 61%.

In Ranelagh, during December, the rain falls for 7.2 days and regularly aggregates up to 21mm (0.83") of precipitation.

With an average of 14h and 24min of daylight, December has the longest days of the year in Ranelagh, Argentina.

The average day length in December in Ranelagh, Argentina, is 14h and 27min.

On the first day of December in Ranelagh, sunrise is at 05:32 and sunset at 19:51. On the last day of the month, sunrise is at 05:42 and sunset at 20:09 -03.

The month with the most sunshine in Ranelagh is December, with an average of 11.2h of sunshine.

In December, the average sunshine duration in Ranelagh, Argentina, is 11.2h.

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

In December, the average daily maximum UV index in Ranelagh is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

23.6°C

27.4°C

29°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.5km/h

16.6km/h

17.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

19.8

21.4

22.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ranelagh, Argentina

Average high temperature in December: 27.4°C

The warmest month (with the highest average high temperature) is January (29°C).
The month with the lowest average high temperature is July (13.3°C).

Average low temperature in December: 18.5°C

The month with the highest average low temperature is January (20.7°C).
The coldest month (with the lowest average low temperature) is July (8.4°C).

Average pressure in December
Ranelagh, Argentina

Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in December
Ranelagh, Argentina

Average wind speed in December: 15.4km/h

The windiest month (with the highest average wind speed) is September (17.9km/h).
The calmest month (with the lowest average wind speed) is March (15.2km/h).

Average humidity in December
Ranelagh, Argentina

Average humidity in December: 61%

The months with the highest relative humidity are May and July (76%).
The month with the lowest relative humidity is January (60%).

Average rainfall in December
Ranelagh, Argentina

Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is October (26mm).
The driest month (with the least rainfall) is May (9mm).

Average rainfall days in December
Ranelagh, Argentina

Average rainfall days in December: 7.2 days

The months with the highest number of rainy days are March and April (8.2 days).
The month with the least rainy days is August (5.8 days).

Average daylight in December /
Average sunshine in December
Ranelagh, Argentina

Average daylight in December: 14h and 24min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

Average sunshine in December: 11h and 12min

The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).

Average sunshine days in December
Ranelagh, Argentina

Average sunshine days in December: 21.4 days

The month with the most sunshine days is August (23.1 days).
The month with the least sunshine days is February (19.5 days).

Average UV index in December
Ranelagh, Argentina

Average UV index in December: 6

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

Average cloud cover in December
Ranelagh, Argentina

Average cloud cover in December: 18

The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 16).

Average visibility in December
Ranelagh, 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).