Weather in Rio de Janeiro for August 2025
In general, the average temperature in Rio de Janeiro at the beginning of August is 27.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.9 °C by the end of August.
Rio de Janeiro experiences moderate rainfall in August, with an average of 10 rainy days and a total precipitation of 130.2 mm.
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Rio de Janeiro in August average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  26° | 3 28° | ||||
| 4 25° | 5 28° | 6 28° | 7 30° | 8  28° | 9  25° | 10 24° |
| 11 25° | 12 27° | 13  21° | 14 22° | 15  25° | 16 26° | 17 28° |
| 18 30° | 19  30° | 20 27° | 21 27° | 22 30° | 23 33° | 24 30° |
| 25  23° | 26 20° | 27 19° | 28 20° | 29 21° | 30 25° | 31 25° |
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Temperatures trend during August in Rio de Janeiro
August weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Partly cloudy | 25° /17° | 0 mm | 7 | |
| 2 Aug. | Sunny | 26° /16° | 0 mm | 7 | |
| 3 Aug. | Sunny | 28° /16° | 0 mm | 8 | |
| 4 Aug. | Partly cloudy | 25° /18° | 0 mm | 7 | |
| 5 Aug. | Sunny | 28° /18° | 0 mm | 8 | |
| 6 Aug. | Sunny | 28° /19° | 0 mm | 8 | |
| 7 Aug. | Sunny | 30° /19° | 0 mm | 9 | |
| 8 Aug. | Heavy rain at times | 28° /21° | 3.5 mm | 7 | |
| 9 Aug. | Patchy rain possible | 25° /19° | 0.5 mm | 6 | |
| 10 Aug. | Sunny | 24° /17° | 14 mm | 7 | |
| 11 Aug. | Sunny | 25° /17° | 0.1 mm | 8 | |
| 12 Aug. | Sunny | 27° /18° | 0.2 mm | 7 | |
| 13 Aug. | Moderate rain at times | 21° /18° | 3 mm | 5 | |
| 14 Aug. | Patchy rain possible | 22° /16° | 2.8 mm | 6 | |
| 15 Aug. | Cloudy | 25° /17° | 0.1 mm | 7 | |
| 16 Aug. | Partly cloudy | 26° /19° | 0 mm | 8 | |
| 17 Aug. | Sunny | 28° /19° | 0 mm | 8 | |
| 18 Aug. | Sunny | 30° /19° | 0 mm | 8 | |
| 19 Aug. | Overcast | 30° /20° | 0 mm | 8 | |
| 20 Aug. | Patchy rain possible | 27° /20° | 0.8 mm | 7 | |
| 21 Aug. | Sunny | 27° /19° | 0.1 mm | 7 | |
| 22 Aug. | Sunny | 30° /19° | 0 mm | 8 | |
| 23 Aug. | Sunny | 33° /20° | 0 mm | 9 | |
| 24 Aug. | Sunny | 30° /21° | 0.4 mm | 8 | |
| 25 Aug. | Light drizzle | 23° /19° | 8.4 mm | 6 | |
| 26 Aug. | Light rain shower | 20° /15° | 20.6 mm | 5 | |
| 27 Aug. | Light rain shower | 19° /16° | 40.7 mm | 5 | |
| 28 Aug. | Light rain shower | 20° /14° | 22.1 mm | 6 | |
| 29 Aug. | Light rain shower | 21° /16° | 11.8 mm | 6 | |
| 30 Aug. | Cloudy | 25° /17° | 1.1 mm | 7 | |
| 31 Aug. | Overcast | 25° /19° | 0.1 mm | 7 | |
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Guide for Rio de Janeiro in August
In August, Rio de Janeiro experiences mild winter weather with average temperatures ranging from 18° to 25°. At the beginning of the month, the city typically sees cooler temperatures with occasional rainfall. The average high temperature hovers around 25°, while the lows can drop to around 18°.
The sea temperature remains relatively warm, making it suitable for beach activities.
As the month progresses, Rio de Janeiro tends to become slightly warmer and drier. The average high temperature may increase to around 27°, offering more pleasant conditions for outdoor exploration and sightseeing. The evenings remain comfortable with temperatures around 20°.
The city experiences fewer rainy days towards the end of August, allowing visitors to enjoy the stunning beaches and outdoor attractions.
Overall, August in Rio de Janeiro offers a delightful blend of mild temperatures, occasional rainfall, and comfortable humidity levels. Travelers can take advantage of the pleasant weather to explore the city's iconic landmarks, indulge in water sports, or simply relax on the beautiful beaches.
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Rio de Janeiro in August - FAQ
What to pack to Rio de Janeiro in August?
As you prepare for your trip to Rio de Janeiro in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Rio de Janeiro, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
August rainfall patterns in Rio de Janeiro
UV exposure in Rio de Janeiro during August
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