December weather forecastSan Ramon, Uruguay

December

Weather in December

December, the first month of the summer in San Ramon, is a moderately hot month, with an average temperature ranging between min 17.8°C (64°F) and max 25.2°C (77.4°F).

Temperature

December witnesses a minor rise in the average high-temperature, transitioning from a pleasant 22°C (71.6°F) in November to a moderately hot 25.2°C (77.4°F). San Ramon throughout December, experiences an average nighttime temperature of 17.8°C (64°F).

Humidity

The average relative humidity in December is 68%.

Rainfall

In December, the rain falls for 9.9 days. Throughout December, 62mm (2.44") of precipitation is accumulated. In San Ramon, during the entire year, the rain falls for 122.1 days and collects up to 681mm (26.81") of precipitation.

Daylight

December has the longest days of the year, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 05:24 and sunset at 19:41. On the last day of December, sunrise is at 05:34 and sunset at 19:59 -03.

Sunshine

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

UV index

January through March 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 health risk from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. 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. Enhance your sun protection with tightly woven, yet airy clothing.

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

Frequently asked questions

The high-temperature, in December, in San Ramon, is 25.2°C (77.4°F), while the low-temperature averages to 17.8°C (64°F). In January, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 29°C (84.2°F).

In San Ramon, the average relative humidity in December is 68%.

In San Ramon, in December, during 9.9 rainfall days, 62mm (2.44") of precipitation is typically accumulated.

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

In San Ramon, the average day length in December is 14h and 24min.

On the first day of December, sunrise is at 05:24 and sunset at 19:41. On the last day of the month, sunrise is at 05:34 and sunset at 19:59 -03.

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

In San Ramon, the average sunshine duration in December 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 reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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°C

25.2°C

27.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

19.4km/h

18.6km/h

19km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

18.2

19.5

21.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
San Ramon, Uruguay

Average high temperature in December: 25.2°C

The warmest month (with the highest average high temperature) is January (27.2°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 January (20°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).

Average pressure in December
San Ramon, Uruguay

Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1018.8mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

Average wind speed in December
San Ramon, Uruguay

Average wind speed in December: 17.4km/h

The windiest month (with the highest average wind speed) is September (19.6km/h).
The calmest month (with the lowest average wind speed) is May (17.2km/h).

Average humidity in December
San Ramon, Uruguay

Average humidity in December: 68%

The months with the highest relative humidity are July and September (79%).
The month with the lowest relative humidity is January (65%).

Average rainfall in December
San Ramon, Uruguay

Average rainfall in December: 62mm

The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is January (42mm).

Average rainfall days in December
San Ramon, Uruguay

Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is January (8.4 days).

Average daylight in December /
Average sunshine in December
San Ramon, 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 30min).

Average sunshine days in December
San Ramon, Uruguay

Average sunshine days in December: 19.5 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is September (16.5 days).

Average UV index in December
San Ramon, Uruguay

Average UV index in December: 6

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

Average cloud cover in December
San Ramon, Uruguay

Average cloud cover in December: 22

The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).

Average visibility in December
San Ramon, 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).