The best time to visit São João del-Rei is from May to September. The most comfortable month is July, with highs of 24 °C (75 °F) and 12 mm of rain over 2 days. December is the rainiest month (327 mm over 18 days), and the summer peak is the high season, with higher prices and big crowds.
Best time to visit, month by month
São João del-Rei month by month
Temperature and rainfall averages from INMET (updated 2026). The verdict combines thermal comfort and rainfall. Tap a month to see the weather, crowds, prices and what is going on in detail.
| Month | High / Low | Rain | Rainy days | Verdict |
|---|---|---|---|---|
| January | 28° / 17° | 320 mm | 17 | Fair |
| February | 29° / 17° | 184 mm | 12 | Fair |
| March | 28° / 17° | 193 mm | 11 | Fair |
| April | 27° / 15° | 65 mm | 6 | Good |
| May | 25° / 12° | 41 mm | 4 | Excellent |
| June | 24° / 10° | 15 mm | 2 | Excellent |
| July ★ | 24° / 10° | 12 mm | 2 | Excellent |
| August | 25° / 11° | 22 mm | 3 | Excellent |
| September | 26° / 13° | 78 mm | 6 | Excellent |
| October | 27° / 15° | 129 mm | 9 | Good |
| November | 27° / 16° | 196 mm | 13 | Fair |
| December | 27° / 17° | 327 mm | 18 | Fair |
Hotels in São João del-Rei
July is the best month and also falls in the high season in São João del-Rei: the top-rated hotels fill up and rates rise close to the date. Book your room as soon as you have settled on your dates.
Rates change with the dates: confirm the price on Booking.com.
The weather in São João del-Rei throughout the year
The May to September window brings together the most comfortable months in São João del-Rei: less rain and pleasant temperatures. July is usually the best month, with highs of 24 °C (75 °F), lows of 10 °C (50 °F) and only about 2 days of rain in the month: good conditions for enjoying outdoor attractions with less risk of downpours.
Summer. In summer (December to February), São João del-Rei has highs of around 28 °C (82 °F) and lows of 17 °C (63 °F), and it is the wetter season, with about 277 mm of rain spread over about 16 days a month. The days are hot and call for beach time and shade.
Fall. In fall (March to May), São João del-Rei has highs of around 27 °C (81 °F) and lows of 15 °C (59 °F), and it is the wetter season, with about 100 mm of rain spread over about 7 days a month. Temperatures are pleasant for sightseeing all day.
Winter. In winter (June to August), São João del-Rei has highs of around 24 °C (75 °F) and lows of 10 °C (50 °F), and it is the driest time of year, with about 16 mm of rain a month. The weather is milder, good for walking and exploring without the summer heat.
Spring. In spring (September to November), São João del-Rei has highs of around 27 °C (81 °F) and lows of 15 °C (59 °F), and it is the wetter season, with about 134 mm of rain spread over about 9 days a month. Temperatures are pleasant for sightseeing all day.
What to avoid
There are two periods to think twice about before booking. December is usually the rainiest month, so anyone who prioritizes sun should avoid it. The other is high season (New Year's Eve, Carnival and the July school break), when attractions fill up and prices rise; if you want peace and savings, choose weeks without public holidays. None of this rules out the trip, but it changes the experience and the cost quite a bit.