Rio de Janeiro
August
Weather in Rio de Janeiro for August 2026
Your guide to Rio de Janeiro weather in August - trends and predictions
The forecast for the upcoming days in Rio de Janeiro predicts a temperature of 28.1 °C, which is slightly above the historical average.
In general, the average temperature in Rio de Janeiro at the beginning of August is 29.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.6 °C by the end of August.
Rio de Janeiro experiences moderate rainfall in August, with an average of 6 rainy days and a total precipitation of 93.3 mm.
Temperatures
Rain 🌧️
25
Dry days
6
Rainy days
0
Snow days
25°/18°
Temperatures
16 km/h
Avg max wind
71 %
Avg humidity
Rio de Janeiro Weather August
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Temperatures trend during August in Rio de Janeiro
See the weather trend as well as the moving average line
August weather in Rio de Janeiro day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Sunny | 24° /16° | 0 mm | 6 | |
| 2 Aug. | Sunny | 26° /16° | 0 mm | 6 | |
| 3 Aug. | Sunny | 27° /17° | 0 mm | 7 | |
| 4 Aug. | Sunny | 28° /19° | 0 mm | 6.7 | |
| 5 Aug. | Sunny | 31° /21° | 0 mm | 7.2 | |
| 6 Aug. | Sunny | 32° /22° | 0 mm | 7.2 | |
| 7 Aug. | Sunny | 37° /23° | 0 mm | 10 | |
| 8 Aug. | Sunny | 32° /23° | 0 mm | 9 | |
| 9 Aug. | Sunny | 30° /23° | 0.1 mm | 9 | |
| 10 Aug. |  Patchy rain possible | 26° /22° | 2.2 mm | 7 | |
| 11 Aug. | Light rain shower | 22° /20° | 8.4 mm | 6 | |
| 12 Aug. | Patchy rain possible | 22° /19° | 1 mm | 6 | |
| 13 Aug. | Sunny | 27° /19° | 0 mm | 8 | |
| 14 Aug. | Sunny | 28° /22° | 0 mm | 8 | |
| 15 Aug. | Patchy rain possible | 25° /21° | 3 mm | 8 | |
| 16 Aug. | Patchy rain possible | 25° /22° | 1.1 mm | 7 | |
| 17 Aug. | Sunny | 26° /18° | 0 mm | 7 | |
| 18 Aug. | Sunny | 27° /18° | 0 mm | 8 | |
| 19 Aug. |  Overcast | 28° /18° | 0 mm | 7 | |
| 20 Aug. | Sunny | 27° /19° | 0.5 mm | 7 | |
| 21 Aug. | Sunny | 28° /19° | 0.1 mm | 7 | |
| 22 Aug. | Sunny | 29° /19° | 0 mm | 8 | |
| 23 Aug. | Sunny | 32° /20° | 0 mm | 9 | |
| 24 Aug. | Patchy rain possible | 28° /20° | 0.3 mm | 7 | |
| 25 Aug. |  Light drizzle | 24° /19° | 5.6 mm | 6 | |
| 26 Aug. | Light rain shower | 21° /17° | 14 mm | 5 | |
| 27 Aug. | Light rain shower | 21° /16° | 27.1 mm | 5 | |
| 28 Aug. | Light rain shower | 21° /16° | 14.7 mm | 6 | |
| 29 Aug. | Light rain shower | 22° /17° | 8.7 mm | 6 | |
| 30 Aug. |  Cloudy | 24° /18° | 1.6 mm | 6 | |
| 31 Aug. | Overcast | 25° /18° | 0.1 mm | 6 | |
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Important Notice
Our weather forecast for Rio de Janeiro 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 Rio de Janeiro forecast closer to your planned date for the most up-to-date weather information.
Change Month
Rio de Janeiro in August - FAQ
What are the expected maximum and minimum temperatures in Rio de Janeiro during August?
During August, expect a variety of temperatures with highs around 25° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Rio de Janeiro during August?
Moderate rainfall is anticipated in Rio de Janeiro during August, with a total of 93.3 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Rio de Janeiro during August?
The average wind speed in Rio de Janeiro during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Rio de Janeiro water temperatures in August
The average water temperature of the Atlantic Ocean near Rio de Janeiro in August is 20.8 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Rio de Janeiro in August?
- The average water temperature in Rio de Janeiro in August is 20.8 °C.
- Can you swim in Rio de Janeiro 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 Rio de Janeiro
Explore the daily rainfall trends and prepare for Rio de Janeiros August weather 💧
Typically, Rio de Janeiro has 6 rainy days in August with a total of 93.3 mm of rainfall.
UV exposure in Rio de Janeiro during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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