Montevideo in August usually sees fair weather conditions, with an average daily high temperature of +15°C and roughly 10 sunny days. However, you should prepare for about 9 rainy days with an average precipitation of 84 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+15°C
Avg. max. temperature
0°C
Min.
+31°C
Max.
84 mm
Total precipitation
78%
Avg. humidity
4 m/s
Avg. wind
10 ☀️
Sunny Days
9 ⛅️
Cloudy
9 🌦
Rainy
Our opinion: Montevideo has OK weather in August.
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Average temperature in Montevideo in August
Here are the expected maximum, average and minimum temperatures in Montevideo for August based on the historical data.
Last Year
Historical Data
The temperature in August is +16°C on average, with a range between a maximum of +23°C during the day and a minimum of +3°C at night.
The average maximum temperature goes down 30% by the end of the month, compared with the beginning of the month, from +22°C to +16°C.
Is Montevideo warm or cold in August?
Montevideo is typically mild in August.
Maximum temperatures go up compared to the previous month from +14°C to +15°C. The minimum temperature also goes up from +8°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is one of the coolest months in Montevideo, here is the comparison with other months:
Water temperature in Montevideo in August
Water in Montevideo in August is Cold. It varies from +10°C to +14°C, with an average of +12°C.This is almost similar to the air temperature, which averages +15°C.
The water temperature in August is one of the coldest of the entire year:
The warmest water temperatures in Montevideo are reached in January, when the average sea temperature rises to +25°C. The coldest water temperatures are in July, with an average of +11°C.
Can you swim in Montevideo in August?
We would not recommend swimming in Montevideo in August, the water is very cold (+12°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°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 August
Montevideo weather looks like this, on average, in August and the surrounding months.
July
August
September
Avg. temperature
+14°C
+15°C
+16°C
Min. temperature
-2°C
0°C
+1°C
Max. temperature
+27°C
+31°C
+32°C
Rainfall
84 mm
84 mm
84 mm
Wind
4 m/s
4 m/s
4 m/s
Avg. water temperature
+11°C
+12°C
+14°C
Humidity
80%
78%
77%
Air pressure
1017 HPa
1017 HPa
1017 HPa
Sunny days
10
10
10
Cloudy days
9
9
8
Rainy days
10
9
9
Snowy days
0
0
0
August weather is still as ok as in July.It’s getting warmer as August arrives. The average maximum temperature goes up from +14°C to +15°C during the day.The rainfall amount in August stays the same as in the previous month with a 84 mm of total precipitation.It feels drier, as humidity decreases from 80% to 78%.The average wind speed doesn’t change much during August, staying around 4 m/s.The amount of sunny days stay about the same, averaging 10 sunny days during the month.
September brings much the same weather, it remains ok.
Wind speed in Montevideo in August based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 8 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 August, going from 4 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during August in Montevideo based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in August stands at 23%, leading to total precipitation of around 80 mm. The maximum amount of rainfall per day is around 55 mm, which is considered heavy rain.On average, there are about 7 rainy days during August, so prepare to bring an umbrella.
Here’s how August is compared with other months in the amount of precipitation, 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 August in Montevideo?
This is the weather in Montevideo in August 2024:
1 August
☀️
+22°C
2 August
☀️
+23°C
3 August
☀️
+14°C
4 August
☀️
+15°C
5 August
☀️
+17°C
6 August
🌧️
+20°C
7 August
☁️
+13°C
8 August
☀️
+15°C
9 August
☀️
+18°C
10 August
☁️
+18°C
11 August
☀️
+15°C
12 August
☀️
+12°C
13 August
☀️
+13°C
14 August
☀️
+22°C
15 August
☀️
+23°C
16 August
☀️
+22°C
17 August
🌧️
+18°C
18 August
🌫️
+15°C
19 August
☀️
+15°C
20 August
☁️
+11°C
21 August
☁️
+17°C
22 August
🌧️
+16°C
23 August
☀️
+16°C
24 August
☀️
+14°C
25 August
☀️
+14°C
26 August
☀️
+13°C
27 August
☀️
+11°C
28 August
☀️
+15°C
29 August
☀️
+15°C
30 August
☀️
+21°C
31 August
☀️
+16°C
In August 2024 Montevideo had 23 sunny days, 4 cloudy days, and 3 rainy days. The average maximum temperature was +16°C, with an absolute maximum of +23°C and a minimum of +11°C. The average humidity was 77%, with a maximum of 99% and a minimum of 49%. The average wind speed was 4 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in August?
Climate Change over Years
This is how Montevideo climate have been changing during last 43 years period.
The climate in Montevideo in August has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+18°C) and the highest in 2017 (+22°C). 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 August:
Is August a good time to visit Montevideo?
It’s always a good time to visit Montevideo, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Montevideo in August?
August 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 August?
Swimming in Montevideo in August is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Montevideo rainy in August?
Montevideo is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Montevideo in August?
The amount of sunny days in Montevideo during August varies; prepare for a mix of clouds and sun.
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.
