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San Nicolas de los Arroyos weather in December

Weather in San Nicolas de los Arroyos: December

Average day temperature: 87.3°F
Average night temperature: 66.0°F
Number of sunny days: 21 days
Day length: 14.2 - 14.4 hours
Number of rainy days: 2 days
Precipitation totals: 0.7 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 100°F. At the same time the lowest night temperature was 57°F. Daily and nightly averages during December were 90.1°F and 65.9°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in San Nicolas de los Arroyos in December is 0.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 6.8 mph It makes December one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 10.9.

Best time for vacation in San Nicolas de los Arroyos

Sunniest months:
January 22 days
December 21 days
October 20 days
Warmest months:
January 90.5 °F
February 87.4 °F
December 87.3 °F
Coldest months:
July 59.6 °F
June 59.8 °F
August 63.7 °F
Rainiest months:
March 5 days
January 3 days
October 3 days
Windiest months:
October 7.0 mph
November 7.0 mph
September 6.8 mph

San Nicolas de los Arroyos on a weather map

San Nicolas de los Arroyos
+104°F
SW 3 mph
Feels like: +104°F
Precip.: 0%
Places in Argentina:
Name
°F
24 Hours Forecast
San Nicolas de los Arroyos
Local time: 17:05
December 30, tuesday
1800
104°F
SW
3 mph
2100
88°F
S
6 mph
December 31, wednesday
0000
84°F
S
9 mph
0300
77°F
SE
6 mph
0600
73°F
SE
5 mph
0900
91°F
SE
6 mph
1200
106°F
SE
6 mph
1500
108°F
S
6 mph
Units of measurement: °C / °F