Montevideo, Uruguay Climate & Monthly Averages
The climate of Montevideo
Located in Uruguay, Montevideo experiences a humid subtropical climate with hot, humid summers and generally mild winters. Afternoon temperatures peak near 80°F (26°C) in January and dip to about 57°F (14°C) in July, with around 38.3 inches (974 mm) of precipitation falling across the year.
Climate quick facts
- Hottest month: January - highs near 80°F (26°C)
- Coldest month: July - highs near 57°F (14°C)
- Record high: 102°F (39°C) · Record low: 33°F (1°C) (2015–2024)
- Wettest month: April (9 rainy days) · Sunniest: December (12.2 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
Temperatures through the year
The warmest stretch of the year centers on January. Highs average 80°F (26°C) and overnight lows stay near 68°F (20°C). The coolest month is July, with typical highs of 57°F (14°C) and lows around 48°F (9°C). Based on 2015–2024 weather data, temperatures have reached as high as 102°F (39°C) and dropped as low as 33°F (1°C).
Rain, sun and snow
April is usually the wettest month. It brings about 4.3 inches (110 mm) of rain over 9 days, while September is the driest. December brings the most sunshine, averaging 12.2 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 80° | 68° | 9 | 2.8 in | 12.1 h/day | 70% |
| February | 79° | 68° | 8 | 3.0 in | 11.3 h/day | 71% |
| March | 76° | 65° | 10 | 3.4 in | 10.3 h/day | 72% |
| April | 71° | 61° | 9 | 4.3 in | 8.7 h/day | 75% |
| May | 63° | 54° | 7 | 3.1 in | 7.5 h/day | 77% |
| June | 59° | 50° | 8 | 2.7 in | 7.2 h/day | 79% |
| July | 57° | 48° | 9 | 4.0 in | 7.1 h/day | 80% |
| August | 60° | 49° | 8 | 3.5 in | 7.9 h/day | 78% |
| September | 62° | 51° | 7 | 2.4 in | 8.7 h/day | 77% |
| October | 66° | 55° | 10 | 3.4 in | 9.9 h/day | 75% |
| November | 72° | 60° | 7 | 2.9 in | 11.2 h/day | 71% |
| December | 76° | 64° | 8 | 2.8 in | 12.2 h/day | 69% |
Montevideo month by month
Montevideo weather in January
January brings highs around 80°F (26°C), lows near 68°F (20°C), about 9 wet days - typically the hottest month of the year in Montevideo.
Montevideo weather in February
February brings highs around 79°F (26°C), lows near 68°F (20°C), about 8 wet days.
Montevideo weather in March
March brings highs around 76°F (24°C), lows near 65°F (18°C), about 10 wet days.
Montevideo weather in April
April brings highs around 71°F (21°C), lows near 61°F (16°C), about 9 wet days - typically the wettest month of the year in Montevideo.
Montevideo weather in May
May brings highs around 63°F (17°C), lows near 54°F (12°C), about 7 wet days.
Montevideo weather in June
June brings highs around 59°F (15°C), lows near 50°F (10°C), about 8 wet days.
Montevideo weather in July
July brings highs around 57°F (14°C), lows near 48°F (9°C), about 9 wet days - typically the coldest month of the year in Montevideo.
Montevideo weather in August
August brings highs around 60°F (15°C), lows near 49°F (10°C), about 8 wet days.
Montevideo weather in September
September brings highs around 62°F (16°C), lows near 51°F (11°C), about 7 wet days - typically the driest month of the year in Montevideo.
Montevideo weather in October
October brings highs around 66°F (19°C), lows near 55°F (13°C), about 10 wet days.
Montevideo weather in November
November brings highs around 72°F (22°C), lows near 60°F (16°C), about 7 wet days.
Montevideo weather in December
December brings highs around 76°F (25°C), lows near 64°F (18°C), about 8 wet days - typically the sunniest month of the year in Montevideo.
Seasons in Montevideo
Spring (September through November)
Spring in Montevideo is crisp but comfortable, with daytime highs averaging 66°F (19°C) and nights around 56°F (13°C); expect showers on roughly 25 days across the season.
Summer (December through February)
Summer in Montevideo is mild and warm, with daytime highs averaging 78°F (26°C) and nights around 66°F (19°C); expect showers on roughly 25 days across the season.
Fall (March through May)
Fall in Montevideo is pleasantly warm, with daytime highs averaging 70°F (21°C) and nights around 60°F (16°C); expect showers on roughly 27 days across the season.
Winter (June through August)
Winter in Montevideo stays on the cool side of mild, with daytime highs averaging 58°F (15°C) and nights around 49°F (9°C); expect showers on roughly 25 days across the season.
Climate questions, answered
What is the average temperature in Montevideo?
Is Montevideo hot in summer?
Is Montevideo cold in winter?
How many rainy days does Montevideo get in a year?
Best time to visit Montevideo
The best time to visit Montevideo is generally November to December and May, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 68°F (20°C).
Pack for Montevideo with a warm jacket and layers for the cooler season; a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - January nights average 68°F (20°C).
Montevideo temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.