Montevideo
Uruguay
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Montevideo, Uruguay

Beautiful lawns and palm trees in the independence square outside the Centrally placed Salvo Palace in Montevideo, Uruguay
Beautiful lawns and palm trees in the independence square outside the Centrally placed Salvo Palace in Montevideo, Uruguay
Montevideo lies within the temperate zone in the Southern Hemisphere and according to Köppen climate classification has a humid subtropical climate (Cfa).
Montevideo is a port city located near the South Atlantic Ocean on the northern banks of the Rio de la Plata. The air is relatively humid throughout the year due to the abundance of water around the region. Wind speeds are unrestricted due to the lack of natural barriers like mountains.

The summers are hot, winters are mild, and it rains throughout the year. High temperatures reach 28.4°C (83.1°F) during the hottest summer month of January.
Low temperatures drop to 7.2°C (45°F) during the coldest winter month of July. Sleet is common in winters. Rainfall is distributed evenly over the year and reaches 1102.4mm (43.4") annually.

Spring, from September to November, is the best time to visit Montevideo. The average temperature ranges from 13.4°C (56.1°F) to 29.9°C (85.8°F), and the humidity also drops considerably. Thunder is rare, and rain is a bit relenting during this period.
Mornings are pleasant, while a mild breeze makes the evenings more enjoyable. The midday sun is warmest at the most, and the nights are mild.
A visit to Montevideo, mainly for a beach holiday, may be better during summer, especially January - the ocean, at 22.8°C (73°F), is considerably cooler than the land and is full of activities.

Winter is a time to avoid Montevideo generally. It is chilly and wet from June to August. A frequent encounter with sleet is a feature of Montevideo winters.
Strong Pampero winds from the Argentine Pampas that blow during the winter make the weather chilly and frosty at night.
Cloudy conditions with high humidity and rain reduce the daily sunshine to 4-5 hours.
From a refreshing dip in the ocean to a serene tour of Montevideo, winter is not the right time to holiday in Montevideo.

January is the peak of summer with the mercury crossing 26.7°C (80.1°F) daily, and a lovely time for a beach holiday in Montevideo. Weather in January »

February has the warmest average sea temperature of the year at 23.1°C (73.6°F), which makes it more suitable for beach activities than bathing in the open sea. Weather in February »

March is the start of the autumn in Montevideo. It is warm and humid, at 25°C (77°F), and the weather is relatively calm for an uninterrupted tour of the city. Weather in March »

Though it is mild and relatively dry, the days warrant a light jacket to keep the chill away. Six hours of sunshine is enough for some exciting ferry excursions around Montevideo. Weather in April »

The temperate weather of May is mild but humid; Highs range up to 18.6°C (65.5°F), but the humidity at 78% makes it feel warmer than the thermometer readings. Weather in May »

Winter arrives in June, and it is mildly cold and dry, and the swimming season has already ebbed with the days getting shorter, as the sunshine lasts hardly 4.9 hours. Weather in June »

Weather is moderately cold and dry, and a visit to a local winery is an effective way to counter the average temperature drop to 6.9°C (44.4°F). Weather in July »

August is mildly cold and dry, with the temperatures increase a little compared to July. Sleet is frequent during the winters, especially during late night and early morning. Weather in August »

With amenable daytime temperatures at 17.8°C (64°F) and the days getting longer with adequate sunshine, it is a period worth a visit to Montevideo. Weather in September »

October is the wettest month with the rain gauge registering an average of 88.9mm (3.5") of rainfall. It is mild and damp with high temperatures at a comfortable 20.5°C (68.9°F). Weather in October »

The temperature hardly crosses a pleasant 23.3°C (73.9°F). It is the end of spring, with warm and dry days, and mild and cool nights. Weather in November »

It is an excellent time to visit Montevideo. Highs reach to 26.5°C (79.7°F), but with the humidity at the lowest of the year, the temperatures feel much lower. Weather in December »

What is the warmest month in Montevideo?

The warmest month is Enero, with an average high-temperature of 28.4°C (83.1°F) and an average low-temperature of 18°C (64.4°F).

How much does it rain in Montevideo?

Throughout the year, there are 77 rainfall days, and 1101.2mm (43.35") of precipitation is accumulated.

When is the sea warmest in Montevideo?

The month with the warmest seawater is Enero, with an average sea temperature of 24.2°C (75.6°F).

What month has the most sunshine in Montevideo?

Enero has the most sunshine of the year in Montevideo, with an average of 9.5h of sunshine.

What are the months with the highest UV index in Montevideo?

Months with the highest UV index in Montevideo are Enero and Diciembre, with an average maximum UV index of 12.

What is the most humid month in Montevideo?

With an average relative humidity of 82%, Junio is the most humid month in Montevideo.

What is the driest month in Montevideo?

Junio is the month with the least rainfall in Montevideo. Rain falls for 7 days and accumulates 83.1mm (3.27") of precipitation.

What is the month with the shortest days in Montevideo?

Junio has the shortest days of the year, with an average of 9.8h of daylight.

What is the month with the least sunshine in Montevideo?

With an average of 4.3h of sunshine, Junio has the least sunshine of the year.

What is the month with the lowest UV index in Montevideo?

Junio and Julio, with an average maximum UV index of 2, are months with the lowest UV index in Montevideo, Uruguay.

What is the coldest month in Montevideo?

With an average high-temperature of 15°C (59°F) and an average low-temperature of 7.2°C (45°F), Julio is the coldest month in Montevideo.

What month is the sea coldest in Montevideo?

With an average sea temperature of 11.3°C (52.3°F), Julio is the month with the coldest seawater.

What is the wettest month in Montevideo?

The month with the most rainfall in Montevideo is Octubre when the rain falls for 7 days and typically aggregates up to 108.5mm (4.27") of precipitation.

What is the least humid month in Montevideo?

The least humid month in Montevideo, Uruguay, is Diciembre, with an average relative humidity of 67%.

When are the longest days in Montevideo?

With an average of 14.5h of daylight, Diciembre has the longest days of the year in Montevideo.
Average humidity - Montevideo, Uruguay
Average rainfall - Montevideo, Uruguay

The wettest month (with the highest rainfall) is October (108.5mm).
The driest month (with the lowest rainfall) is June (83.1mm).

Average rainfall days - Montevideo, Uruguay

Months with the highest number of rainy days are February, June, July, October and November (7 days).
Months with the lowest number of rainy days are January, March, April, May, August, September and December (6 days).

Average sea temperature - Montevideo, Uruguay

The best month for swimming (with the highest average sea temperature) is January (24.2°C).
The coldest month (with the lowest average sea temperature) is July (11.3°C).

Average daylight / Average sunshine - Montevideo, Uruguay