Weather in Montevideo: January
![]() |
Average day temperature: | 84.0°F |
Average night temperature: | 68.7°F | |
![]() |
Sea water temperature: | 76.1°F |
![]() |
Number of sunny days: | 22 days |
Day length: | 13.8 - 14.4 hours | |
![]() |
Number of rainy days: | 4 days |
Precipitation totals: | 2.4 in. | |
more information |
forecast
Montevideo |
temperature
Montevideo |
Air temperature in January, °F
Day temperature | Night temperature |
The highest day temperature during January of 2025 was 91°F. At the same time the lowest night temperature was 58°F. Daily and nightly averages during January were 83.4°F and 66.5°F.
Sea water temperature in Montevideo in January, °F
The average sea water temperature in January of 2025 was 74.9°F. The highest and lowest sea temperatures during the month were 78.3°F and 71.8°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Mostly all days in January are sunny but cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Montevideo in January is 2.3 in. Other months of the year show relatively similar values.
The average wind speed value in January is 11.3 mph It makes January most windy month of the year.
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 January is: 11.0.
Best time for vacation in Montevideo
Montevideo on a weather map

23 mph

23 mph

30 mph

30 mph

26 mph

26 mph

21 mph

22 mph