December weather forecastMonte Hermoso, Argentina

December

Weather in December

December, the first month of the summer in Monte Hermoso, is a moderately hot month, with an average temperature fluctuating between 15.7°C (60.3°F) and 27.7°C (81.9°F).

Temperature

With the onset of December, Monte Hermoso's average high-temperature sees a modest rise, moving from November's agreeable 22.9°C (73.2°F) to a warm 27.7°C (81.9°F). December presents a pronounced divergence from daily peak temperatures in Monte Hermoso, with the average low-temperature of 15.7°C (60.3°F).

Heat index

For most parts of December, the heat index is calculated to be 28°C (82.4°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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 quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

January and December, with an average relative humidity of 48%, are the least humid months.

Rainfall

In Monte Hermoso, Argentina, during December, the rain falls for 7.5 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, in Monte Hermoso, there are 104 rainfall days, and 367mm (14.45") of precipitation is accumulated.

Snowfall

January through June, August, October through December are months without snowfall in Monte Hermoso.

Daylight

With an average of 14h and 48min of daylight, December has the longest days of the year in Monte Hermoso.
On the first day of the month, sunrise is at 05:34 and sunset at 20:16. On the last day of December, sunrise is at 05:44 and sunset at 20:34 -03.

Sunshine

The month with the most sunshine in Monte Hermoso is December, with an average of 11.6h of sunshine.

UV index

January, February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in December translates into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

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

Frequently asked questions

The high-temperature in Monte Hermoso, Argentina, during December is 27.7°C (81.9°F) and the low-temperature is 15.7°C (60.3°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is calculated to be 28°C (82.4°F).

The months with the lowest humidity in Monte Hermoso are January and December, with an average relative humidity of 48%.

The average relative humidity in December in Monte Hermoso is 48%.

In Monte Hermoso, Argentina, in December, it is raining for 7.5 days, with typically 28mm (1.1") of accumulated precipitation.

January through June, August, October through December are months without snowfall.

The month with the longest days is December, with an average of 14h and 48min of daylight.

The average day length in December in Monte Hermoso, Argentina, is 14h and 51min.

In December, on the first day of the month, sunrise is at 05:34 and sunset at 20:16. On the last day of the month, in Monte Hermoso, sunrise is at 05:44 and sunset at 20:34 -03.

With an average of 11.6h of sunshine, December has the most sunshine of the year in Monte Hermoso.

In Monte Hermoso, Argentina, the average sunshine duration in December is 11.6h.

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

In Monte Hermoso, Argentina, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

22.9°C

27.7°C

29.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

18.3km/h

19.1km/h

19.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.3

20.7

20.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Monte Hermoso, Argentina

Average high temperature in December: 27.7°C

The warmest month (with the highest average high temperature) is January (29.1°C).
The month with the lowest average high temperature is July (12°C).

Average low temperature in December: 15.7°C

The month with the highest average low temperature is January (17.4°C).
The coldest month (with the lowest average low temperature) is July (5.8°C).

Average pressure in December
Monte Hermoso, Argentina

Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is December (1009.9mbar).

Average wind speed in December
Monte Hermoso, Argentina

Average wind speed in December: 17.4km/h

The windiest month (with the highest average wind speed) is June (19.8km/h).
The calmest month (with the lowest average wind speed) is October (16.6km/h).

Average humidity in December
Monte Hermoso, Argentina

Average humidity in December: 48%

The months with the highest relative humidity are May and October (69%).
The months with the lowest relative humidity are January and December (48%).

Average rainfall in December
Monte Hermoso, Argentina

Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is August (15mm).

Average rainfall days in December
Monte Hermoso, Argentina

Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is October (11.3 days).
The month with the least rainy days is August (6.5 days).

Average snowfall in December
Monte Hermoso, Argentina

Average snowfall in December: 0mm

The month with the highest snowfall is July (2mm).
The months with the least snowfall are January, February, March, April, May, June, August, October, November and December (0mm).

Average snowfall days in December
Monte Hermoso, Argentina

Average snowfall days in December: 0 days

The month with the highest number of snowfall days is July (0.3 days).
The months with the least snowfall days are January, February, March, April, May, June, August, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Monte Hermoso, Argentina

Average daylight in December: 14h and 48min

The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 30min).

Average sunshine in December: 11h and 36min

The month with the most sunshine is December (Average sunshine: 11h and 36min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).

Average sunshine days in December
Monte Hermoso, Argentina

Average sunshine days in December: 20.7 days

The month with the most sunshine days is August (23.1 days).
The month with the least sunshine days is October (17.1 days).

Average UV index in December
Monte Hermoso, Argentina

Average UV index in December: 6

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

Average cloud cover in December
Monte Hermoso, Argentina

Average cloud cover in December: 16

The months with the most cloud cover are May, July and October (Cloud cover 33).
The month with the least cloud cover is January (Cloud cover 15).

Average visibility in December
Monte Hermoso, 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).