Montevideo climate

Montevideo Weather in December

NOAA 1991-2020 normals for Montevideo 1SW, 2.7 km from Montevideo

Average highs run from 34°F on December 1 to 23°F on December 31, and lows from 15°F to 4°F. Normal precipitation for the month is 0.82 in over about 4 wet days.

December day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Montevideo, in °F, with the record for each date.-50-250255075151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

December at a glance

Average high
28°F
Average low
9°F
Precipitation
0.82 in
Snowfall
10.3 in
Record high
72°FDec 6, 1939
Record low
-33°FDec 29, 1917
Chance of a freeze
100%
Daylight
9 h 02 min to 8 h 50 min
Cloud cover
65%
Humidity
85%
Dew point
15°F
Wind
11.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Dec 134°F15°F59°F 1962-14°F 189712%9%
Dec 233°F14°F63°F 1998-15°F 189512%10%
Dec 333°F14°F59°F 1962-18°F 194012%10%
Dec 432°F13°F61°F 1941-17°F 197812%10%
Dec 532°F13°F54°F 1912-9°F 197713%11%
Dec 631°F13°F72°F 1939-15°F 197713%11%
Dec 731°F12°F57°F 1939-17°F 193613%11%
Dec 831°F12°F58°F 1939-22°F 190213%11%
Dec 930°F11°F62°F 1939-26°F 197713%12%
Dec 1030°F11°F53°F 1939-22°F 197713%12%
Dec 1129°F11°F53°F 1939-20°F 194513%12%
Dec 1229°F10°F64°F 1913-20°F 194513%12%
Dec 1328°F10°F58°F 1913-31°F 191713%12%
Dec 1428°F10°F53°F 1894-29°F 190113%13%
Dec 1528°F9°F57°F 1939-26°F 190113%13%
Dec 1627°F9°F61°F 1939-20°F 195313%13%
Dec 1727°F9°F53°F 1913-21°F 195313%13%
Dec 1827°F8°F62°F 1923-32°F 201613%14%
Dec 1926°F8°F59°F 2011-32°F 198313%14%
Dec 2026°F8°F50°F 1894-30°F 191613%14%
Dec 2126°F7°F52°F 1933-30°F 191614%14%
Dec 2225°F7°F52°F 1941-22°F 198914%14%
Dec 2325°F7°F53°F 1917-28°F 198314%14%
Dec 2425°F6°F52°F 1922-24°F 198314%14%
Dec 2524°F6°F48°F 1922-22°F 199614%15%
Dec 2624°F6°F51°F 1943-31°F 190214%15%
Dec 2724°F6°F53°F 2011-27°F 199314%15%
Dec 2824°F5°F50°F 1898-29°F 199314%15%
Dec 2923°F5°F47°F 1896-33°F 191714%15%
Dec 3023°F5°F61°F 1999-26°F 191414%15%
Dec 3123°F4°F52°F 2004-27°F 197314%15%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Montevideo, in percent, and of at least 0.1 inch of snowfall.0510151102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CST).

December 1
sunrise 7:41 AM, sunset 4:43 PM
December 31
sunrise 8:01 AM, sunset 4:51 PM

Every day of December: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215563 (Montevideo 1SW), public domain. Records: NOAA GHCN-Daily, station USC00215563, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.