Water temperature in Montevideo in August

Is it warm enough to swim in Montevideo in August? Average water temperature in Montevideo in August is 11.8°C and therefore is not suitable for comfortable swimming. The warmest sea in Montevideo in August is 15.4°C, and the coldest is 8°C. Average high air temperature in Montevideo in August is 16°C, and average low temperature is 8°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Montevideo

Changes water temperature in Montevideo in August 2025, 2024

To get an accurate forecast for the water temperature in Montevideo for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Montevideo, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	10.7°C	10.9°C	8.9°C	13.4°C
2 August	11.8°C	11°C	9°C	14°C
3 August	11.6°C	12°C	9°C	13°C
4 August	11.9°C	11.8°C	8°C	13.1°C
5 August	11.7°C	11.5°C	8.5°C	13.3°C
6 August	11.1°C	11.9°C	8.6°C	14°C
7 August	11.6°C	11.8°C	8.4°C	13.7°C
8 August	11.4°C	12.1°C	8.7°C	13.5°C
9 August	11.5°C	11.5°C	9°C	13.6°C
10 August	11.7°C	11.9°C	9.1°C	13.8°C
11 August	12°C	11.4°C	9.3°C	14.5°C
12 August	11.4°C	10.7°C	9.1°C	13.9°C
13 August	11.7°C	11°C	9.2°C	13.7°C
14 August	11.9°C	11.1°C	9.8°C	13.8°C
15 August	11.4°C	11.1°C	9.6°C	13.9°C

Day	2025	2024	Min	Max
16 August	11.2°C	11.2°C	9.4°C	13.6°C
17 August	11.4°C	11.6°C	9.4°C	13.8°C
18 August	11.7°C	11.3°C	9.1°C	13.9°C
19 August	11.8°C	11.3°C	9.4°C	14.1°C
20 August	12.1°C	11.1°C	9.6°C	14.5°C
21 August	12.2°C	11.1°C	9.7°C	15.3°C
22 August	12.5°C	10.6°C	10°C	15°C
23 August	12.3°C	10.8°C	9.5°C	15.4°C
24 August	12.2°C	10.8°C	10°C	15.2°C
25 August	12.2°C	10.8°C	9.9°C	15°C
26 August	12.7°C	10.6°C	10.2°C	14.1°C
27 August	12.9°C	11.3°C	9.9°C	14.6°C
28 August	13.6°C	11.5°C	10.8°C	14.8°C
29 August	13.6°C	11.4°C	10.3°C	15.3°C
30 August	13.2°C	11.8°C	10.5°C	15.1°C
31 August	13.3°C	11.9°C	10.4°C	15.1°C

Average water temperature in Montevideo in August over a decade

2016	2017	2018	2019	2020
12°C	13.8°C	11.7°C	11.5°C	11.5°C

2021	2022	2023	2024	2025
11.4°C	12°C	12.5°C	11.3°C	11.5°C

Montevideo sea state in August

Chart comparing the height of waves in Montevideo in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Weather and climate in Montevideo in August

This data display average monthly climate indicators in Montevideo in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

Average HIGH temperature16°C
Average LOW temperature8°C
Average humidity
77
Average rainfall days6 days
Average rainfall3.5''/89mm
Average daylight11h
Average sunshine5.3h
Average UV index4

Montevideo water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Playa Ramirez	11.9°C	8.1°C	15.5°C
Pocitos	11.9°C	8.1°C	15.4°C
Canelones	11.9°C	8°C	15.3°C
Ciudad de la Costa	11.9°C	8°C	15.3°C
Playa Pinar	11.9°C	8°C	15.3°C
Santiago Vazquez	11.9°C	8.2°C	15.6°C
Costa de Oro	11.9°C	8°C	15.3°C
La Floresta	11.9°C	8°C	15.3°C
Las Vegas	11.9°C	8°C	15.3°C
Parque del Plata	11.9°C	8°C	15.3°C

Montevideo photo gallery

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Our report for Montevideo is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature