9.3· 3 reviews
Chapada Diamantina Caves Tour + Morro do Pai Inácio
On this excursion from Lençóis, we'll visit several caves in the Chapada Diamantina and the surroundings of the famous Morro do Pai Inácio.
10 h 30 min
from US$ 118
Short answer
The best time to visit Chapada Diamantina is from June to September. The most comfortable month is August, with highs of 27 °C (81 °F) and 40 mm of rain over 7 days. March is the rainiest month (164 mm over 13 days), and the summer peak is the high season, with higher prices and big crowds.
Source: INMET (updated 2026)
When to go
Best time to visit, month by month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best window: June to September More rain / less comfortable Comfort index · INMET (updated 2026)
Chapada Diamantina 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 | 32° / 20° | 133 mm | 13 | Fair |
| February | 32° / 21° | 94 mm | 10 | Fair |
| March | 31° / 21° | 164 mm | 13 | Fair |
| April | 30° / 20° | 114 mm | 12 | Fair |
| May | 28° / 19° | 63 mm | 10 | Good |
| June | 27° / 18° | 56 mm | 9 | Good |
| July | 27° / 17° | 42 mm | 9 | Good |
| August ★ | 27° / 17° | 40 mm | 7 | Good |
| September | 30° / 18° | 26 mm | 6 | Good |
| October | 32° / 19° | 76 mm | 9 | Good |
| November | 31° / 20° | 135 mm | 13 | Fair |
| December | 31° / 20° | 116 mm | 13 | Fair |
Best month
August
Driest month
September
Avoid (more rain)
March
Tours and tickets
Things to do in Chapada Diamantina
Where to stay
Hotels in Chapada Diamantina
August is the best month and also falls in the high season in Chapada Diamantina: 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 Chapada Diamantina throughout the year
The June to September window brings together the most comfortable months in Chapada Diamantina: less rain and pleasant temperatures. August is usually the best month, with highs of 27 °C (81 °F), lows of 17 °C (63 °F) and only about 7 days of rain in the month: good conditions for enjoying outdoor attractions with less risk of downpours.
Summer. In summer (December to February), Chapada Diamantina has highs of around 32 °C (90 °F) and lows of 20 °C (68 °F), and it is the wetter season, with about 114 mm of rain spread over about 12 days a month. The days are hot and call for beach time and shade.
Fall. In fall (March to May), Chapada Diamantina has highs of around 30 °C (86 °F) and lows of 20 °C (68 °F), and it is the wetter season, with about 114 mm of rain spread over about 12 days a month. The days are hot and call for beach time and shade.
Winter. In winter (June to August), Chapada Diamantina has highs of around 27 °C (81 °F) and lows of 17 °C (63 °F), and it is the driest time of year, with about 46 mm of rain a month. Temperatures are pleasant for sightseeing all day.
Spring. In spring (September to November), Chapada Diamantina has highs of around 31 °C (88 °F) and lows of 19 °C (66 °F), and it is the wetter season, with about 79 mm of rain spread over about 9 days a month. The days are hot and call for beach time and shade.
What to avoid
There are two periods to think twice about before booking. March 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.