Montevideo, Uruguay – Climate and Average Weather Year Round: A Comprehensive Guide

Montevideo, the capital of Uruguay, enjoys a mild subtropical climate influenced by its proximity to the Atlantic Ocean.

The warm season in Montevideo lasts from December to March, with average daily high temperatures above 76°F. January is the hottest month, where temperatures can reach an average high of 80°F.

During the cooler season, from May to August, the average daily high temperature drops below 62°F. July sees the lowest temperatures with averages around 51°F.

Despite the cool temperatures, winter days can still feel pleasant.

The climate in Montevideo is characterized by moderate rainfall throughout the year, avoiding extreme weather conditions. This makes the city an attractive destination for travelers seeking comfortable weather.

Monthly averages and historical data reveal a year-round climate that is inviting and temperate.

For more detailed information, you can explore the climate graph for Montevideo.

Average Temperature In Montevideo, Uruguay

Montevideo experiences a variety of temperatures throughout the year. In the warmest month, January, the average high temperature reaches around 80°F and the low is 65°F.

The cooler season spans from late May to late August. During these months, temperatures drop, with July being the coldest month, averaging a low of 46°F.

Monthly Temperature Averages:

Month High Temp (°F) Low Temp (°F)
January 80 65
February 79 64
March 77 62
April 72 57
May 65 49
June 59 45
July 58 46
August 60 47
September 64 51
October 69 54
November 73 58
December 77 62

Montevideo’s mean monthly temperature highlights its mild climate. Even in winter, daytime highs can occasionally reach around 82°F.

Winter months like June, July, and August typically see lower temperatures around 59°F to 60°F.

The transition from winter to spring in September and October brings moderate weather, with temperatures gradually rising. By December, the weather heats up, indicating the start of the summer season.

Average Precipitation In Montevideo, Uruguay

Montevideo experiences a moderate amount of rainfall throughout the year. There are no months entirely free of rain, and while snow is very rare, it has occurred on rare occasions.

Average Rainfall In Montevideo, Uruguay

The city of Montevideo doesn’t have a specific dry season and receives an even distribution of rain across the year. On average, the city gets about 37 inches of precipitation annually.

The rainiest months are typically March and April, with around 3.5 to 4 inches of rain each. Conversely, December tends to be one of the driest months, with about 2.8 inches of rainfall.

Month Average Rainfall (inches)
January 3.1
February 3.3
March 4.0
April 3.6
May 3.1
June 3.0
July 3.2
August 3.0
September 3.4
October 3.3
November 3.2
December 2.8

Rainy days are frequent, and there are no significant dry periods throughout the year.

Average Snow In Montevideo, Uruguay

Snow in Montevideo is exceedingly rare. The city is located in a region characterized by a humid subtropical climate, making snowfall an unusual event.

The last recorded incidence of snow happened decades ago and was regarded as a unique phenomenon.

Due to its subtropical setting, Montevideo does not accumulate snow, and residents can expect predominantly rain rather than snow and ice.

Average Sun In Montevideo, Uruguay

Montevideo enjoys a mix of sunshine hours throughout the year with variations in average daily shortwave solar energy closely tied to the seasons.

Average Daily Shortwave Solar Energy In Montevideo, Uruguay

The average daily shortwave solar energy in Montevideo sees a notable shift from season to season.

During the high summer months, from December to February, the city experiences a peak in solar energy, reaching around 7.5 kWh per square meter per day. This high level of sunlight is typical for a city in the southern hemisphere enjoying summer.

In contrast, the winter months from June to August witness a significant decrease, with daily solar energy dropping to about 3.5 kWh per square meter per day.

This reduction still allows for moderate sun exposure, though the days are shorter and less intense.

Month kWh per m² per Day
January 7.5
February 7.3
March 6.0
April 4.8
May 3.8
June 3.5
July 3.6
August 4.0
September 5.0
October 6.0
November 6.8
December 7.4

Montevideo’s sunny days also influence daylight hours and overall clear skies, creating a pleasant environment most of the year.

The variation in sunlight can affect sea temperatures, with warmer water typically observed during sunnier months and cooler water during periods of less intense sunlight.

Average Humidity In Montevideo, Uruguay

Montevideo has varying humidity levels throughout the year. The average annual relative humidity is around 76%.

Monthly Humidity Levels

  • January: 70%
  • February: 71%
  • March: 74%
  • April: 77%
  • May: 79%
  • June: 81%
  • July: 81%
  • August: 80%
  • September: 79%
  • October: 77%
  • November: 74%
  • December: 70%

During the more humid months like June and July, the relative humidity can reach up to 81%.

Dew Point

The dew point changes with seasons. In the summer months, the dew point can feel quite sticky. In winter, it becomes more pleasant.

Perceived Temperature

Higher humidity can make the temperature feel warmer than it actually is. This is especially noticeable during the summer when perceived temperatures can rise.

More detailed climate information is available at Weather and Climate in Montevideo.

Average Wind In Montevideo, Uruguay

Montevideo experiences variable wind speeds throughout the year.

Monthly Average Wind Speed

Month Average Wind Speed (mph)
January 12
February 12
March 11
April 10
May 10
June 9.5
July 9
August 9
September 9.5
October 10
November 11
December 12

Notably, January and December have higher wind speeds, reaching around 12 mph.

Sea Breeze

Montevideo’s location along the coast results in a frequent sea breeze. This breeze generally cools the city during the summer months, providing relief on hot days. The coastal location also means that the city can experience strong gusts.

Windiest Month

The windiest months are usually January and December, with wind speeds around 12 mph. Residents and visitors might want to be prepared for these blustery conditions during this time of year.

For additional information about wind patterns, refer to the articles on wind.

Average Air Quality In Montevideo, Uruguay

The air quality in Montevideo, Uruguay varies throughout the year. The city’s air quality index (AQI) is usually in the “Moderate” range, according to IQAir.

Monthly Air Quality Index

Month Average AQI Description
January 50 Moderate
February 48 Moderate
March 55 Moderate
April 60 Moderate
May 37 Good
June 40 Good
July 45 Good
August 50 Moderate
September 52 Moderate
October 53 Moderate
November 54 Moderate
December 49 Moderate

Common Pollutants

PM2.5 is a common pollutant in Montevideo. Its levels typically fall within acceptable ranges but occasionally spike due to activities like traffic and industrial work.

Other Pollutants: Include nitrogen dioxide (NO2) and sulfur dioxide (SO2), which come mainly from vehicle emissions and industrial processes.

Air Quality Forecast

The Weather Channel provides daily updates, allowing residents to plan activities according to air quality levels.

Forecasting includes pollutants, weather conditions, and atmospheric pressure.

Monitoring air quality is essential for healthy living, and various resources such as AccuWeather offer real-time data and forecasts.

Using these tools can help residents minimize exposure to pollutants.

Topography Of Montevideo, Uruguay

Montevideo, the capital of Uruguay, is situated on the southern coast of the country, along the northern shore of the Rio de la Plata. The city’s geographic coordinates are approximately 34.9° S latitude and 56.2° W longitude.

Montevideo lies at an average elevation of about 148 feet above sea level, reaching its highest points in places like the Cerro de Montevideo. This hill rises to about 469 feet and offers panoramic views of the city and the river.

The coastal lowlands are a defining feature of Montevideo’s topography. These areas, extending along the coast, are largely flat and are home to many of the city’s beaches.

Key Geographical Points:

  • Latitude: 34.9° S
  • Longitude: 56.2° W
  • Average Elevation: 148 feet
  • Highest Point: Cerro de Montevideo (469 feet)

The inland regions are gently rolling, with moderate hills and broad plains. The terrain gradually rises as one moves away from the coast. Urban development has also influenced the landscape, with green spaces and parks integrating with the natural topography.

Climatic Influence:

Montevideo’s position along the Rio de la Plata influences its weather, offering a humid subtropical climate. The mix of coastal and mild inland areas contributes to the city’s diverse natural scenery. This blend is noticeable in the various microclimates experienced throughout the city.

Montevideo’s coastline, with beaches like Pocitos and Buceo, exemplifies the harmonious balance between urbanization and the natural environment. The coastal lowlands, complemented by the city’s carefully maintained green spaces, underscore Montevideo’s unique topographical character.

For more detailed climate information, visit the weather and climate page about Montevideo.

Extreme Weather Events That Occur In Montevideo, Uruguay

In Montevideo, extreme weather events are a significant concern due to their impact on daily life and infrastructure. These events can range from intense heatwaves to heavy rainfall and flooding.

Heat Waves: Montevideo can experience extreme heat during summer months. January is usually the hottest, with temperatures sometimes reaching up to 109.4°F. Prolonged periods of high temperatures can cause heatwaves, which pose health risks and strain electricity and water resources.

Month Average High (°F) Record High (°F)
January 82.4 109.4
February 81.1 106.0
December 80.6 104.0

Heavy rainfall is also common in Montevideo. This can lead to flooding, especially in low-lying areas. October and March typically experience the highest levels of rainfall, which can disrupt transportation and damage property.

Rainfall by Month:

  • October: 3.5 inches
  • March: 3.2 inches

Strong Winds: The city occasionally faces strong winds that can cause property damage and power outages. These can occur during both summer and winter storms.

Cold Spells in Winter: Although less frequent, cold spells can also hit Montevideo. July usually sees the lowest temperatures, which can drop to 46°F. While not as extreme as the heatwaves, cold spells can impact vulnerable populations.

Best Time Of The Year To Visit Montevideo, Uruguay

When planning a visit to Montevideo, it’s important to know what to expect in each season. The best time to visit often depends on whether you prefer warm sun, mild temperatures, or cultural events. Below is a detailed look at each season in Montevideo.

What Is Montevideo, Uruguay Like In Spring

In spring (September – November), Montevideo enjoys mild temperatures that range between 55°F and 70°F. This season is perfect for outdoor activities like walking around the historic streets of Colonia del Sacramento.

Key Points:

  • Temperature: 55°F – 70°F
  • Rainfall: Moderate, around 3 inches per month
  • Activities: Beach visits, city tours, exploring markets

This season offers a comfortable climate for strolling through city parks and enjoying sidewalk cafes. Spring blooms are also a highlight.

What Is Montevideo, Uruguay Like In Summer

Montevideo’s summer (December – February) features warm weather ideal for beachgoers. Temperatures typically range from 77°F to 82°F.

Key Points:

  • Temperature: 77°F – 82°F
  • Rainfall: 5-6 inches per month
  • Events: Carnival celebrations, concerts, beach sports

The beaches of Punta del Este are especially popular during this time. Tourists flock to the city, making it a busy season. It’s an excellent time for those who love outdoor festivals, music, and sunbathing.

What Is Montevideo, Uruguay Like In Fall

Fall (March – May) brings cooler temperatures and less rainfall, making it a pleasant time to explore.

Key Points:

  • Temperature: 60°F – 75°F
  • Rainfall: 3-4 inches per month
  • Activities: Winery tours, cultural sites, walking tours

Visitors can enjoy quieter tourist spots such as museums and historical landmarks without the summer crowds.

What Is Montevideo, Uruguay Like In Winter

Winter in Montevideo (June – August) is mild compared to many other cities.

Temperatures range from 45°F to 60°F.

Key Points:

  • Temperature: 45°F – 60°F
  • Rainfall: around 4 inches per month
  • Activities: Indoor events, dining, museums

Though it’s the off-season for tourism, winter offers indoor cultural activities and cozy dining experiences.

The city’s historical sites are less crowded, allowing for uninterrupted exploration.

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