Montevideo Weather in May

Montevideo in May sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 12°C (54°F). Rainfall is fairly high this month at around 89 mm (3.5 in), so pack a rain jacket to stay dry.

Rainfall in Montevideo in May

Historically, approximately 9 days this month are expected to have rain, averaging 89 mm (3.5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Montevideo in May

In May, Montevideo sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 12°C (54°F). Conditions are often most pleasant around the middle of the day. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Montevideo in May

You can expect a moderate amount of sunlight, with approximately 162 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Montevideo in May

Average wind conditions reach 5 m/s (10 knots) in May. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in May

The water temperature is 16°C (61°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

Should you favor a climate that's both dry and comfortably warm, January, March and December typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Uruguay, check out our Montevideo's climate page.

Montevideo Temperature in May

Min Temperature 12°C (54°F)  

Max Temperature 19°C (66°F)  

Water Temperature 16°C (61°F)  

Chance of Rain 30%  

Precipitation 89 mm (3.5 in)  

Rainy days 9 days  

Humidity 79%  

Windspeed 5 m/s (10 knots)  

Sunshine 162 hours  

Percentage Sunshine  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Montevideo typically drop from around 20°C (68°F) at the start of May to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).

Average temperatures in May

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in May

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Montevideo in May

Browse day-by-day weather records for Montevideo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Montevideo historical weather extremes in May

Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Montevideo.

• The warmest day in May was on May 13, 1980, with a maximum of 30°C (86°F).
• Montevideo experienced its chilliest May day on May 30, 1979, reaching only 8°C (46°F).
• The lowest overnight temperature recorded in May was 0°C (32°F) (May 29, 1987).

What to Wear in Montevideo in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 16°C (61°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Montevideo in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Uruguay, check out our Montevideo's climate page.

More climate data for Montevideo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Montevideo climate overview or explore weather in Uruguay.