Montevideo weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Excellent
Best time to visit: October – April
What is the weather like in Montevideo in January?
In January, Montevideo is warm: daytime highs average 27 °C, and nights cool down to about 19 °C. The sea averages 23.7 °C – pleasant for swimming. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 73 mm. All in all, January is an excellent month for a holiday in Montevideo.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 90 | 94 | 88 |
| Day | 25° | 27° | 26° |
| Night | 17° | 19° | 19° |
| Sea | 22° | 24° | 24° |
| Sun | 9 h | 9 h | 8 h |
| Rain days | 8 | 7 | 9 |
More details for January
- Daylight
- 14 h 15 min05:46 – 20:01
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 11 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 40 %on averageAll months
- Hot days
- 5 days30 °C or moreAll months
- Time zone
- UTC−3America/Montevideo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %79 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in January
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
Montevideo in January: quick answers
Is Montevideo hot in January?
Warm rather than hot: in January, daytime highs in Montevideo average 27 °C and nights cool to about 19 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Montevideo in January?
Yes. In January the sea averages 23.7 °C – pleasant for swimming.
Does it rain much in Montevideo in January?
Rain falls on about 7 days, adding up to 73 mm.
Montevideo month by month
The whole year in MontevideoAll destinations: UruguayWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences