If you plan to visit Montevideo in May, the weather is typically alright, with an average high temperature of +63°F during the day and approximately 9 sunny days. Expect some rainy, though, as there are typically 11 rainy days in the month and around 135 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+63°F
Avg. max. temperature
+32°F
Min.
+84°F
Max.
135 mm
Total precipitation
79%
Avg. humidity
4 m/s
Avg. wind
9 ☀️
Sunny Days
9 ⛅️
Cloudy
11 🌦
Rainy
Our opinion: Montevideo has OK weather in May.
Average temperature in Montevideo in May
Here are the expected maximum, average and minimum temperatures in Montevideo for May based on the historical data.
Last Year
Historical Data
Going from a maximum of +77°F during the day to a minimum of +43°F during the night, the temperature in May averages around +66°F.
The average maximum temperature goes down 5% by the end of the month, compared with the beginning of the month, from +63°F to +61°F.
Is Montevideo warm or cold in May?
Montevideo is typically mild in May.
Maximum temperatures go down compared to the previous month from +70°F to +63°F. The minimum temperature also goes down from +59°F to +54°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Montevideo:
Water temperature in Montevideo in May
Water in Montevideo in May is Cold. It varies from +56°F to +65°F, with an average of +61°F.This is almost similar to the air temperature, which averages +63°F.
In May, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Montevideo are reached in January, when the average sea temperature rises to +77°F. The coldest water temperatures are in July, with an average of +53°F.
Can you swim in Montevideo in May?
We would not recommend swimming in Montevideo in May, the water is very cold (+61°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Montevideo in May
Montevideo weather looks like this, on average, in May and the surrounding months.
April
May
June
Avg. temperature
+70°F
+63°F
+57°F
Min. temperature
+41°F
+32°F
+32°F
Max. temperature
+95°F
+84°F
+81°F
Rainfall
102 mm
135 mm
84 mm
Wind
4 m/s
4 m/s
4 m/s
Avg. water temperature
+66°F
+61°F
+55°F
Humidity
77%
79%
80%
Air pressure
1014 HPa
1016 HPa
1016 HPa
Sunny days
10
9
9
Cloudy days
7
9
9
Rainy days
10
11
10
Snowy days
0
0
0
May weather is still as ok as in April.It’s getting colder in May. From +70°F in the day, the average maximum temperature lowers to +63°F.Prepare for more rain. Average rainfall goes from 102 mm to 135 mm.Humidity rises from 77% to 79%.The average wind speed doesn’t change much during May, staying around 4 m/s.The days becoming less sunny, going from 10 sunny days in April to 9 in May.
Wind speed in Montevideo in May based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Montevideo is gradually decreasing during May, going from 4 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during May in Montevideo based on historical data.
Last Year
Historical Data
Typically, there is a 48% chance of rain on an average day in May, with total rainfall of approximately 123 mm. The maximum amount of rainfall per day is around 28 mm, which is moderate rain.May is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
May is one of the rainiest months in Montevideo, here is a comparison with other months, total mm:
Montevideo wettest month is May, where a typical day has a 35% chance of precipitation and 135 mm of rainfall per day. January, on the other hand, is the driest month with a mere 19% chance of precipitation and 64 mm of rainfall per day.
How was the weather last May in Montevideo?
This is the weather in Montevideo in May 2023:
1 May
🌧️
+62°F
2 May
☀️
+61°F
3 May
☀️
+64°F
4 May
☀️
+70°F
5 May
☁️
+68°F
6 May
🌧️
+69°F
7 May
☁️
+66°F
8 May
☁️
+63°F
9 May
☁️
+61°F
10 May
☁️
+61°F
11 May
☁️
+62°F
12 May
☁️
+65°F
13 May
☁️
+66°F
14 May
☀️
+75°F
15 May
☀️
+71°F
16 May
☀️
+75°F
17 May
☀️
+77°F
18 May
☀️
+64°F
19 May
🌫️
+68°F
20 May
🌧️
+62°F
21 May
🌧️
+69°F
22 May
☀️
+69°F
23 May
☀️
+75°F
24 May
☀️
+70°F
25 May
🌧️
+69°F
26 May
☀️
+70°F
27 May
🌧️
+60°F
28 May
☁️
+55°F
29 May
☀️
+56°F
30 May
☀️
+62°F
31 May
☀️
+61°F
In May 2023 Montevideo had 15 sunny days, 9 cloudy days, and 6 rainy days. The average maximum temperature was +66°F, with an absolute maximum of +77°F and a minimum of +55°F. The average humidity was 79%, with a maximum of 100% and a minimum of 50%. The average wind speed was 3 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in May?
Climate Change Over the Years
This is how Montevideo climate has changed over the last 43 years.
The climate in Montevideo in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1984 (+65°F) and the highest in 2017 (+72°F). The driest year was 1979 with only 542 mm of rainfall, and the wettest year was 2019 with 3342 mm.
FAQ
Frequently asked questions about the weather in Montevideo in May:
Is May a good time to visit Montevideo?
It’s always a good time to visit Montevideo, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Montevideo in May?
May has mild temperatures in Montevideo. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in Montevideo in May?
Swimming in Montevideo in May is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Montevideo rainy in May?
Montevideo is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Montevideo in May?
Usually, it’s not very sunny in Montevideo in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Montevideo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
