August weather forecastMontevideo, Uruguay

Beautiful lawns and palm trees in the independence square outside the Centrally placed Salvo Palace in Montevideo, Uruguay

August

Weather in August

August presents a gentle transition from winter to spring, showcasing slightly longer days and extended sunshine duration. An uptick in sea temperature to 12.1°C (53.8°F) hints at the changing season. The rainfall remains almost stable at 88mm (3.46") maintaining the wet conditions from July. Towards the end of the month, the sunshine duration increases, indicating the return of warmer days. After peaking in June, the humidity begins to decrease, signaling the deviation from prevailing winter conditions.

Temperature

As August unfolds, the average high-temperature reaches a still refreshing 16.2°C (61.2°F), hinting at a slight fluctuation from the previous month. In Montevideo, the expected average low-temperature for August is a chilly 7.8°C (46°F).

Humidity

The average relative humidity in August is 77%.

Rainfall

In Montevideo, in August, during 6 rainfall days, 88mm (3.46") of precipitation is typically accumulated. In Montevideo, during the entire year, the rain falls for 77 days and collects up to 1101mm (43.35") of precipitation.

Sea temperature

In Montevideo, in August, the average water temperature is 12.1°C (53.8°F).
Note: Dipping in 12.1°C (53.8°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

In Montevideo, the average length of the day in August is 10h and 52min.
On the first day of the month, sunrise is at 07:38 and sunset at 18:03. On the last day of August, sunrise is at 07:03 and sunset at 18:25 -03.

Sunshine

The average sunshine in August is 5.3h.

UV index

In Montevideo, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in August, in Montevideo, is 16.2°C (61.2°F), while the low-temperature averages to 7.8°C (46°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in February is calculated to be 30°C (86°F).

In Montevideo, the average relative humidity in August is 77%.

In Montevideo, during August, the rain falls for 6 days and regularly aggregates up to 88mm (3.46") of precipitation.

In August, the average sea temperature is 12.1°C (53.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

In Montevideo, the average day length in August is 10h and 52min.

In August, on the first day of the month, sunrise is at 07:38 and sunset at 18:03. On the last day of the month, sunrise is at 07:03 and sunset at 18:25 -03.

In August, the average sunshine duration in Montevideo is 5.3h.

The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J August S O N D

Jul

August

Sep

Average high temperature

15°C

16.2°C

18°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in August
Montevideo, Uruguay

Average high temperature in August: 16.2°C

The warmest month (with the highest average high temperature) is January (28.4°C).
The month with the lowest average high temperature is July (15°C).

Average low temperature in August: 7.8°C

The month with the highest average low temperature is January (18°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).

Average humidity in August
Montevideo, Uruguay

Average humidity in August: 77%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is December (67%).

Average rainfall in August
Montevideo, Uruguay

Average rainfall in August: 88.2mm

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

Average rainfall days in August
Montevideo, Uruguay

Average rainfall days in August: 6 days

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

Average sea temperature in August
Montevideo, Uruguay

Average sea temperature in August: 12.1°C

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 in August /
Average sunshine in August
Montevideo, Uruguay

Average daylight in August: 10h and 54min

The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).

Average sunshine in August: 5h and 18min

The month with the most sunshine is January (Average sunshine: 9h and 30min).
The month with the least sunshine is June (Average sunshine: 4h and 18min).