Weather in South America for March 2026
In general, the average temperature in South America at the beginning of March is 30.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 28.6 °C by the end of March.
South America experiences heavy rainfall in March, with over 20 rainy days and an average total precipitation 162.4 mm.
Temperatures
Rain 🌧️
South America Weather March
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | ||||||
| 2 31° | 3 31° | 4  32° | 5  31° | 6 30° | 7  30° | 8  30° |
| 9 31° | 10 30° | 11 28° | 12 28° | 13 29° | 14 29° | 15 30° |
| 16 30° | 17 30° | 18 30° | 19 30° | 20 30° | 21 31° | 22 29° |
| 23 28° | 24 28° | 25 30° | 26 29° | 27 27° | 28 26° | 29 29° |
| 30 29° | 31 30° |
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Temperatures trend during March in South America
March weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Mar. | Patchy rain possible | 31° /23° | 1.8 mm | 7 | |
| 2 Mar. | Patchy rain possible | 31° /23° | 0.9 mm | 8 | |
| 3 Mar. | Patchy rain possible | 31° /22° | 0.2 mm | 8 | |
| 4 Mar. | Sunny | 32° /22° | 0.2 mm | 9 | |
| 5 Mar. | Partly cloudy | 31° /22° | 3.7 mm | 8 | |
| 6 Mar. | Patchy rain possible | 30° /23° | 2 mm | 7 | |
| 7 Mar. | Moderate or heavy rain with thunder | 30° /22° | 3.9 mm | 7 | |
| 8 Mar. | Patchy light rain with thunder | 30° /23° | 1.6 mm | 7 | |
| 9 Mar. | Patchy rain possible | 31° /23° | 0.9 mm | 8 | |
| 10 Mar. | Patchy rain possible | 30° /23° | 17.5 mm | 7 | |
| 11 Mar. | Patchy rain possible | 28° /23° | 7.1 mm | 7 | |
| 12 Mar. | Patchy rain possible | 28° /22° | 2.7 mm | 7 | |
| 13 Mar. | Patchy rain possible | 29° /22° | 3.6 mm | 7 | |
| 14 Mar. | Patchy rain possible | 29° /22° | 0.5 mm | 7 | |
| 15 Mar. | Partly cloudy | 30° /22° | 1 mm | 8 | |
| 16 Mar. | Patchy rain possible | 30° /23° | 1.3 mm | 7 | |
| 17 Mar. | Partly cloudy | 30° /23° | 1.3 mm | 8 | |
| 18 Mar. | Patchy rain possible | 30° /23° | 1.5 mm | 7 | |
| 19 Mar. | Patchy rain possible | 30° /22° | 7.4 mm | 7 | |
| 20 Mar. | Sunny | 30° /22° | 2.9 mm | 8 | |
| 21 Mar. | Patchy rain possible | 31° /23° | 1.3 mm | 8 | |
| 22 Mar. | Partly cloudy | 29° /22° | 11.8 mm | 7 | |
| 23 Mar. | Patchy rain possible | 28° /22° | 6.4 mm | 7 | |
| 24 Mar. | Partly cloudy | 28° /22° | 23.2 mm | 7 | |
| 25 Mar. | Light rain shower | 30° /22° | 2.7 mm | 8 | |
| 26 Mar. | Patchy rain possible | 29° /22° | 2.6 mm | 7 | |
| 27 Mar. | Light rain shower | 27° /22° | 4.2 mm | 6 | |
| 28 Mar. | Light rain shower | 26° /22° | 6.4 mm | 6 | |
| 29 Mar. | Patchy rain possible | 29° /21° | 2.8 mm | 7 | |
| 30 Mar. | Patchy rain possible | 29° /22° | 6.6 mm | 7 | |
| 31 Mar. | Light rain shower | 30° /22° | 2.7 mm | 7 | |
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Guide for South America in March
In March, Rio de Janeiro experiences warm and pleasant weather, making it an ideal time to visit. At the beginning of the month, the average temperature hovers around 28°, with plenty of sunshine and minimal rainfall.
This creates perfect conditions for enjoying the city's beautiful beaches, such as Copacabana and Ipanema, or exploring the iconic Christ the Redeemer statue.
Towards the end of March, the temperature in Rio de Janeiro remains consistently warm, with average highs of 29° and lows of 23°. The city continues to enjoy clear skies and a gentle sea breeze, providing a comfortable environment for outdoor activities and sightseeing.
However, it's worth noting that the humidity levels may increase slightly towards the end of the month, so visitors should be prepared for this.
Overall, March offers fantastic weather in Rio de Janeiro, making it an excellent time to experience the vibrant culture, stunning landscapes, and lively atmosphere of this Brazilian gem.
Whether you're interested in carnival celebrations, exploring historical sites, or simply relaxing on the beach, Rio de Janeiro in March is sure to delight visitors with its delightful climate.
Have you visited South America in March? Share your experience by writing a review.
South America in March - FAQ
March rainfall patterns in South America
UV exposure in South America during March
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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.