December weather forecastLas Piedras, Uruguay

December

Weather in December

The first month of the summer, December, is a moderately hot month in Las Piedras, Uruguay, with an average temperature ranging between max 25.6°C (78.1°F) and min 17.8°C (64°F).

Temperature

The start of December is characterized by a subtle increase in the average high-temperature, transitioning from a pleasant 22.3°C (72.1°F) in November to a moderately hot 25.6°C (78.1°F). Throughout the month of December, Las Piedras reports a steady low-temperature average of 17.8°C (64°F).

Humidity

The average relative humidity in December is 67%.

Rainfall

In Las Piedras, during December, the rain falls for 11.4 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 131.6 rainfall days, and 707mm (27.83") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 05:24 and sunset at 19:43. On the last day of December, sunrise is at 05:34 and sunset at 20:01 -03.

Sunshine

January and December, with an average of 10.9h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during December leads to these advisories:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Las Piedras, records 25.6°C (78.1°F), while the low-temperature is 17.8°C (64°F). In January, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is evaluated at 30°C (86°F).

In December, the average relative humidity is 67%.

In Las Piedras, during December, the rain falls for 11.4 days and regularly aggregates up to 60mm (2.36") of precipitation.

December has the longest days of the year, with an average of 14h and 24min of daylight.

In Las Piedras, the average day length in December is 14h and 26min.

On the first day of December, sunrise is at 05:24 and sunset at 19:43. On the last day of the month, sunrise is at 05:34 and sunset at 20:01 -03.

January and December, with an average of 10.9h of sunshine, are months with the most sunshine.

In December, the average sunshine duration is 10.9h.

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

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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

22.3°C

25.6°C

27.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

18.7km/h

17.9km/h

18.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

16.3

19.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Las Piedras, Uruguay

Average high temperature in December: 25.6°C

The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is July (13.3°C).

Average low temperature in December: 17.8°C

The month with the highest average low temperature is February (19.9°C).
The coldest month (with the lowest average low temperature) is July (8.7°C).

Average pressure in December
Las Piedras, Uruguay

Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

Average wind speed in December
Las Piedras, Uruguay

Average wind speed in December: 16.8km/h

The windiest month (with the highest average wind speed) is September (19.2km/h).
The calmest month (with the lowest average wind speed) is May (16.7km/h).

Average humidity in December
Las Piedras, Uruguay

Average humidity in December: 67%

The months with the highest relative humidity are July, August and September (79%).
The month with the lowest relative humidity is January (64%).

Average rainfall in December
Las Piedras, Uruguay

Average rainfall in December: 60mm

The wettest months (with the highest rainfall) are July and November (68mm).
The driest month (with the least rainfall) is January (46mm).

Average rainfall days in December
Las Piedras, Uruguay

Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is January (9.4 days).

Average daylight in December /
Average sunshine in December
Las Piedras, Uruguay

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: 10h and 54min

The months with the most sunshine are January and December (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 42min).

Average sunshine days in December
Las Piedras, Uruguay

Average sunshine days in December: 18 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is October (15.2 days).

Average UV index in December
Las Piedras, Uruguay

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 May, July and August (UV index 3).

Average cloud cover in December
Las Piedras, Uruguay

Average cloud cover in December: 21

The month with the most cloud cover is July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 19).

Average visibility in December
Las Piedras, Uruguay

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).