Weather in South America for May 2025
In general, the average temperature in South America at the beginning of May is 29.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °C by the end of May.
South America experiences moderate rainfall in May, with an average of 8 rainy days and a total precipitation of 51.9 mm.
Is May a good time to visit South America? check out the best time to travel to South America page.
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South America in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 29° | 3  30° | 4  30° | |||
| 5 30° | 6 30° | 7  30° | 8 30° | 9  30° | 10 26° | 11 27° |
| 12 26° | 13 26° | 14 25° | 15 21° | 16 27° | 17 26° | 18 27° |
| 19 25° | 20 28° | 21  27° | 22 27° | 23 28° | 24 29° | 25 24° |
| 26 22° | 27 24° | 28  24° | 29 19° | 30 19° | 31 19° |
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Temperatures trend during May in South America
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 30° /18° | 0.2 mm | 8 | |
| 2 May | Patchy rain possible | 29° /18° | 0.6 mm | 8 | |
| 3 May | Partly cloudy | 30° /19° | 0 mm | 8 | |
| 4 May | Sunny | 30° /18° | 0 mm | 8 | |
| 5 May | Sunny | 30° /19° | 0 mm | 8 | |
| 6 May | Partly cloudy | 30° /18° | 0 mm | 8 | |
| 7 May | Cloudy | 30° /19° | 0 mm | 8 | |
| 8 May | Partly cloudy | 30° /19° | 0 mm | 8 | |
| 9 May | Heavy rain at times | 30° /19° | 1.4 mm | 7 | |
| 10 May | Heavy rain at times | 26° /19° | 3 mm | 7 | |
| 11 May | Patchy rain possible | 27° /18° | 0.1 mm | 7 | |
| 12 May | Patchy rain possible | 26° /17° | 0.2 mm | 7 | |
| 13 May | Cloudy | 26° /17° | 0 mm | 7 | |
| 14 May | Partly cloudy | 25° /15° | 0.6 mm | 7 | |
| 15 May | Sunny | 21° /14° | 0.3 mm | 6 | |
| 16 May | Sunny | 27° /14° | 0 mm | 7 | |
| 17 May | Cloudy | 26° /15° | 0 mm | 7 | |
| 18 May | Partly cloudy | 27° /15° | 0 mm | 8 | |
| 19 May | Sunny | 25° /15° | 0.1 mm | 7 | |
| 20 May | Sunny | 28° /14° | 0.1 mm | 7 | |
| 21 May | Overcast | 27° /14° | 0 mm | 7 | |
| 22 May | Cloudy | 27° /15° | 0 mm | 7 | |
| 23 May | Sunny | 28° /17° | 0 mm | 8 | |
| 24 May | Sunny | 29° /16° | 0 mm | 8 | |
| 25 May | Sunny | 24° /14° | 3.6 mm | 7 | |
| 26 May | Sunny | 22° /14° | 7.7 mm | 6 | |
| 27 May | Sunny | 24° /15° | 6.4 mm | 6 | |
| 28 May | Moderate rain at times | 24° /16° | 3.3 mm | 6 | |
| 29 May | Patchy rain possible | 19° /14° | 0.5 mm | 6 | |
| 30 May | Overcast | 19° /13° | 1.3 mm | 5 | |
| 31 May | Moderate or heavy rain shower | 19° /13° | 22.6 mm | 6 | |
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South America in May - FAQ
What to pack to South America in May?
As you prepare for your trip to South America 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 South America, 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 South America
UV exposure in South America during May
Quick links
Where is South America?Get accurate weather forecasts for South America, located at latitude -23.548 and longitude -46.636. Stay updated with localized weather information tailored for South America.