Climate in Rio de Janeiro — Annual Weather Overview
Rio de Janeiro has a tropical climate — hot and humid year-round with a distinct wet season. The hottest month is January (average high 29.2°C) and the coolest is June (24.7°C). Temperatures are consistent year-round, with highs ranging only 4.5°C between the warmest and coolest months. Annual rainfall totals around 1173mm. December is the wettest month at 161.3mm, while July averages just 40.4mm. Average daily sunshine is 9.8 hours.
**Spring (September, October, November):** average highs 26.3°C, 295mm rain. **Summer (December, January, February):** average highs 28.7°C, 468mm rain. **Autumn (March, April, May):** average highs 26.8°C, 254mm rain. **Winter (June, July, August):** average highs 24.8°C, 157mm rain.
Rio de Janeiro — Monthly Temperatures
Rio de Janeiro — Monthly Rainfall
✅ Best months to visit
All year
ℹ️ No months to avoid
Weather in Rio de Janeiro stays reasonable all year.
Rio de Janeiro weather by month
| Month | High | Low | Rain | Sun/day | Rainy days | Rating |
|---|---|---|---|---|---|---|
| January | 29.2°C | 23.4°C | 149.1mm | 10.4h | 14 | 9/10 |
| February | 28.9°C | 23.4°C | 157.8mm | 9.8h | 17 | 9/10 |
| March | 29.0°C | 23.0°C | 84.3mm | 11.0h | 8 | 10/10 |
| April | 26.3°C | 21.1°C | 109.2mm | 9.9h | 14 | 9/10 |
| May | 25.0°C | 19.2°C | 60.0mm | 9.6h | 8 | 10/10 |
| June | 24.7°C | 18.6°C | 42.3mm | 9.1h | 10 | 10/10 |
| July | 24.8°C | 18.0°C | 40.4mm | 9.2h | 6 | 10/10 |
| August | 25.0°C | 18.2°C | 73.9mm | 9.1h | 9 | 10/10 |
| September | 26.2°C | 19.6°C | 83.9mm | 9.8h | 8 | 10/10 |
| October | 26.3°C | 20.7°C | 102.4mm | 9.0h | 16 | 9/10 |
| November | 26.5°C | 20.8°C | 108.7mm | 10.2h | 15 | 9/10 |
| December | 28.0°C | 22.4°C | 161.3mm | 10.3h | 16 | 9/10 |
For the full verdict on when to go, see the best time to visit Rio de Janeiro. Seasonal breakdowns: spring, summer, autumn and winter.
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Frequently Asked Questions
What type of climate does Rio de Janeiro have?
Rio de Janeiro has a tropical climate — hot and humid year-round with a distinct wet season. Average highs range from 24.7°C in June to 29.2°C in January.
What is the hottest month in Rio de Janeiro?
January is the hottest month in Rio de Janeiro, with average highs of 29.2°C and lows of 23.4°C.
What is the coldest month in Rio de Janeiro?
June is the coolest month, with average highs of 24.7°C and lows of 18.0°C.
What is the wettest month in Rio de Janeiro?
December is the wettest month, averaging 161.3mm of rainfall over around 16 rainy days.
How much rain does Rio de Janeiro get per year?
Rio de Janeiro receives around 1173mm of rain per year. The driest month is July (40.4mm).
When is the best time to visit Rio de Janeiro?
The best time to visit Rio de Janeiro is All year. See the full month-by-month guide →
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For the packing side of things, our sister site has a ready-made checklist: Rio de Janeiro packing list at 247PackingList. For currency, language and country facts see the Brazil guide at 247CountryInfo. Some travellers fund a longer stay in Rio de Janeiro by teaching English along the way — a TEFL certificate is usually all it takes.
Trip essentials for Rio de Janeiro
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.