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Weather in South America for August 2025

Your guide to South America weather in August - trends and predictions

    Temperatures

  • Until now, August 2025 in South America is slightly cooler than the historical average by -1.9 °C.

  • The forecast for the upcoming days in South America predicts a temperature of 26.9 °C, which is slightly above the historical average.

  • In general, the average temperature in South America at the beginning of August is 26.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.1 °C by the end of August.

    • Rain 🌧️

  • South America experiences moderate rainfall in August, with an average of 10 rainy days and a total precipitation of 130.2 mm.

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/18°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
71 %
Avg humidity

South America Weather August

Move between months or click on a day
July
September
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
24°
2
Sunny
26°
3
Sunny
28°
4
Partly cloudy
26°
5
Sunny
26°
6
Sunny
26°
7
Sunny
28°
8
Heavy rain at times
28°
9
Patchy rain possible
23°
10
Sunny
23°
11
Sunny
24°
12
Patchy rain possible
25°
13
Moderate rain at times
22°
14
Patchy rain possible
22°
15
Cloudy
24°
16
Partly cloudy
25°
17
Sunny
26°
18
Sunny
27°
19
Overcast
28°
20
Sunny
27°
21
Sunny
28°
22
Sunny
29°
23
Sunny
32°
24
Patchy rain possible
28°
25
Light drizzle
24°
26
Light rain shower
21°
27
Light rain shower
21°
28
Light rain shower
21°
29
Patchy rain possible
25°
30
Patchy rain possible
24°
31
Sunny
26°

Temperatures trend during August in South America

See the weather trend as well as the moving average line

August weather in South America day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
1 Aug. Sunny
Sunny
 24° /16° 0 mm 7
2 Aug. Sunny
Sunny
 26° /16° 0 mm 7
3 Aug. Sunny
Sunny
 28° /16° 0 mm 8
4 Aug. Partly cloudy
Partly cloudy
 26° /18° 0 mm 7
5 Aug. Sunny
Sunny
 26° /18° 0 mm 7
6 Aug. Sunny
Sunny
 26° /19° 0 mm 7
7 Aug. Sunny
Sunny
 28° /18° 0 mm 8
8 Aug. Heavy rain at times
Heavy rain at times
 28° /19° 2.7 mm 7
9 Aug. Patchy rain possible
Patchy rain possible
 23° /18° 3.4 mm 6
10 Aug. Sunny
Sunny
 23° /17° 9.4 mm 6
11 Aug. Sunny
Sunny
 24° /17° 0.8 mm 7
12 Aug. Patchy rain possible
Patchy rain possible
 25° /17° 0.1 mm 7
13 Aug. Moderate rain at times
Moderate rain at times
 22° /17° 2 mm 6
14 Aug. Patchy rain possible
Patchy rain possible
 22° /16° 2 mm 6
15 Aug. Cloudy
Cloudy
 24° /17° 0 mm 6
16 Aug. Partly cloudy
Partly cloudy
 25° /18° 0.2 mm 7
17 Aug. Sunny
Sunny
 26° /18° 0 mm 7
18 Aug. Sunny
Sunny
 27° /18° 0 mm 8
19 Aug. Overcast
Overcast
 28° /18° 0 mm 7
20 Aug. Sunny
Sunny
 27° /19° 0.5 mm 7
21 Aug. Sunny
Sunny
 28° /19° 0.1 mm 7
22 Aug. Sunny
Sunny
 29° /19° 0 mm 8
23 Aug. Sunny
Sunny
 32° /20° 0 mm 9
24 Aug. Patchy rain possible
Patchy rain possible
 28° /20° 0.3 mm 7
25 Aug. Light drizzle
Light drizzle
 24° /19° 5.6 mm 6
26 Aug. Light rain shower
Light rain shower
 21° /17° 14 mm 5
27 Aug. Light rain shower
Light rain shower
 21° /16° 27.1 mm 5
28 Aug. Light rain shower
Light rain shower
 21° /16° 14.7 mm 6
29 Aug. Patchy rain possible
Patchy rain possible
 25° /20° 2.8 mm 1.5
30 Aug. Patchy rain possible
Patchy rain possible
 24° /19° 1.9 mm 1.6
31 Aug. Sunny
Sunny
 26° /18° 0.1 mm 1.9
Next
Important Notice
Our weather forecast for South America in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the South America forecast closer to your planned date for the most up-to-date weather information.
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South America in August - FAQ

What are the expected maximum and minimum temperatures in South America during August?
During August, expect a variety of temperatures with highs around 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in South America during August?
Significant rainfall exceeding 130.2 mm is expected in South America during August, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in South America during August?
The average wind speed in South America during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

South America water temperatures in August

The average water temperature of the Atlantic Ocean near South America in August is 19.3 °C. At the beginning of August temperatures are around 19.8 °C; by the end of the month they get a bit cooler and reach 18.9 °C.

What is the water temperature in South America in August?
The average water temperature in South America in August is 19.3 °C.
Can you swim in South America in August?
Refreshing and invigorating. Expect to feel chilled after 10–20 minutes; a shorty wetsuit extends water time, especially at dawn.

August rainfall patterns in South America

Explore the daily rainfall trends and prepare for South Americas August weather 💧

UV exposure in South America during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

Quick links

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Location coordinates Where is South America?

Get accurate weather forecasts for South America, located at latitude -22.906 and longitude -43.182. Stay updated with localized weather information tailored for South America.

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