Brazil
Rio de Janeiro in August
In August, Rio de Janeiro averages a daytime high of 26 °C and a night-time low of 16 °C, with about 55 mm of rain over the month. By the measure used here it is one of the most comfortable months to visit; they run June to August.
- Average high
- 26 °C
- Average low
- 16 °C
- Rain in the month
- 55 mm
- Daylight on 15 Aug
- 11 h 20 min
- Comfortable month
- Yes
- Places to stay
- 117
When to go
How August compares with the rest of the year in Rio de Janeiro
August is tied for the 9th warmest month in Rio de Janeiro by average daytime high; across the year the highs run from 25 °C to 32 °C and the lows from 16 °C to 22 °C. By day, August is 1 °C warmer than July, and September is 1 °C warmer than August.
August brings 55 mm of rain, less than the monthly average of 144 mm (1723 mm a year); it is the driest month.
On 15 August the sun is up for about 11 h 20 min, against 10 h 40 min at the shortest and 13 h 30 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 31 °C | 22 °C | 250 mm | |
| February | 32 °C | 22 °C | 184 mm | |
| March | 30 °C | 21 °C | 226 mm | |
| April | 29 °C | 20 °C | 131 mm | |
| May | 26 °C | 17 °C | 101 mm | |
| June | 26 °C | 16 °C | 59 mm | Yes |
| July | 25 °C | 16 °C | 58 mm | Yes |
| August | 26 °C | 16 °C | 55 mm | Yes |
| September | 27 °C | 17 °C | 97 mm | |
| October | 28 °C | 18 °C | 126 mm | |
| November | 28 °C | 19 °C | 203 mm | |
| December | 30 °C | 21 °C | 233 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is August a good time to visit Rio de Janeiro?
Yes, by the measure used here: in August the average high of 26 °C is between 18 °C and 29 °C and the 55 mm of rain is under 80 mm. The comfortable months in Rio de Janeiro are June to August.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
When to go
Destinations near Rio de Janeiro that are comfortable in August
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in Rio de Janeiro
This guide lists 117 places to stay in Rio de Janeiro, hotels recorded in Wikidata. By straight-line distance from the centre: 1–3 km, 19; 3–10 km, 86; 10 km or more, 12.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; places to stay from each operator's own public pages and Wikidata. How this guide is made.