Weather in Rio de Janeiro for May 2025
In general, the average temperature in Rio de Janeiro at the beginning of May is 29.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.6 °C by the end of May.
With an average of 3 rainy days, Rio de Janeiro experiences minimal rainfall in May.
Is May a good time to visit Rio de Janeiro? check out the best time to travel to Rio de Janeiro page.
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Rio de Janeiro in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 30° | 3  29° | 4 30° | |||
| 5 30° | 6  29° | 7 30° | 8  31° | 9 31° | 10  27° | 11 26° |
| 12 27° | 13 28° | 14 25° | 15 24° | 16 27° | 17  28° | 18 26° |
| 19 26° | 20 27° | 21 26° | 22 28° | 23 29° | 24 29° | 25 26° |
| 26 24° | 27 27° | 28 28° | 29 22° | 30 23° | 31 22° |
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Temperatures trend during May in Rio de Janeiro
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Overcast | 30° /21° | 0 mm | 8 | |
| 2 May | Overcast | 30° /21° | 0 mm | 8 | |
| 3 May | Sunny | 29° /21° | 0 mm | 8 | |
| 4 May | Sunny | 30° /21° | 0 mm | 9 | |
| 5 May | Sunny | 30° /21° | 0 mm | 8 | |
| 6 May | Cloudy | 29° /21° | 0 mm | 7 | |
| 7 May | Sunny | 30° /21° | 0 mm | 8 | |
| 8 May | Partly cloudy | 31° /21° | 0 mm | 9 | |
| 9 May | Sunny | 31° /22° | 0.1 mm | 9 | |
| 10 May | Moderate or heavy rain shower | 27° /22° | 6.4 mm | 7 | |
| 11 May | Moderate or heavy rain shower | 26° /21° | 3.1 mm | 6 | |
| 12 May | Moderate rain at times | 27° /21° | 2.2 mm | 7 | |
| 13 May | Moderate rain at times | 28° /21° | 1.9 mm | 7 | |
| 14 May | Cloudy | 25° /20° | 0.4 mm | 6 | |
| 15 May | Sunny | 24° /19° | 2.6 mm | 6 | |
| 16 May | Sunny | 27° /18° | 0.1 mm | 7 | |
| 17 May | Patchy rain possible | 28° /20° | 0.6 mm | 7 | |
| 18 May | Overcast | 26° /20° | 0.1 mm | 7 | |
| 19 May | Sunny | 26° /19° | 0 mm | 7 | |
| 20 May | Sunny | 27° /18° | 0 mm | 8 | |
| 21 May | Partly cloudy | 26° /18° | 1.8 mm | 7 | |
| 22 May | Cloudy | 28° /18° | 0 mm | 7 | |
| 23 May | Sunny | 29° /19° | 0 mm | 8 | |
| 24 May | Partly cloudy | 29° /20° | 0 mm | 8 | |
| 25 May | Sunny | 26° /19° | 1.6 mm | 7 | |
| 26 May | Sunny | 24° /18° | 16.2 mm | 7 | |
| 27 May | Sunny | 27° /19° | 6.7 mm | 7 | |
| 28 May | Sunny | 28° /19° | 2.8 mm | 7 | |
| 29 May | Moderate or heavy rain shower | 22° /19° | 21.7 mm | 6 | |
| 30 May | Patchy rain possible | 23° /19° | 0.2 mm | 6 | |
| 31 May | Moderate or heavy rain shower | 22° /18° | 5.3 mm | 6 | |
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Guide for Rio de Janeiro in May
In May, Rio de Janeiro experiences a transition from the warm, humid conditions of autumn to the cooler, drier weather of winter. At the beginning of the month, the average temperature hovers around 25°, with occasional showers and high humidity.
As the month progresses, the temperature gradually decreases to around 23°, and the humidity levels begin to drop. By the end of May, Rio de Janeiro enjoys more comfortable weather, with cooler evenings and pleasant daytime temperatures.
The city experiences an average of 7 hours of sunshine per day throughout May, providing ample opportunity for outdoor activities and sightseeing. However, visitors should be prepared for sporadic rain showers, especially in the first half of the month.
The sea temperature remains relatively warm, making it suitable for beach activities and water sports.
Overall, May in Rio de Janeiro offers a mix of warm days, occasional rain showers, and comfortable evenings, making it an ideal time to explore the city's vibrant culture, beautiful beaches, and stunning natural landscapes.
Rio de Janeiro in May - FAQ
What to pack to Rio de Janeiro in May?
As you prepare for your trip to Rio de Janeiro in May, 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 May, 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
May rainfall patterns in Rio de Janeiro
UV exposure in Rio de Janeiro during May
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