Brazil
Rio de Janeiro sees feels-like daytime highs peak around 39.5°C in January and nighttime lows bottom out near 22.8°C in July. December is the wettest month (~184 mm), while August is the driest (~38 mm). For sunshine, August leads with about 72% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are July, August, and June — expect around 22.8–29.4°C with roughly 18% chance of rain on a given day in July.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 30.9° / 39.5° | 58% | 179 mm | 31% | 10.4 kph |
| February | 31.1° / 39.5° | 46% | 132 mm | 35% | 10.3 kph |
| March | 30.5° / 37.8° | 46% | 132 mm | 42% | 10.2 kph |
| April | 28.7° / 35.8° | 34% | 92 mm | 60% | 10.7 kph |
| May | 25° / 32.8° | 26% | 64 mm | 67% | 11.2 kph |
| June☀ | 23.3° / 30.9° | 19% | 46 mm | 68% | 11.4 kph |
| July☀ | 22.8° / 29.4° | 18% | 39 mm | 70% | 11.9 kph |
| August☀ | 23.1° / 30.5° | 20% | 38 mm | 72% | 12.9 kph |
| September | 24.3° / 31° | 28% | 64 mm | 66% | 13.4 kph |
| October | 25.8° / 32.6° | 37% | 96 mm | 51% | 13 kph |
| November | 27.6° / 34.6° | 49% | 145 mm | 41% | 12 kph |
| December | 29.5° / 37.8° | 61% | 184 mm | 33% | 11 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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