Rio de Janeiro weather in March
March in Rio de Janeiro: sweltering, rainy — an excellent time to visit.
#5 of 12 months in Rio de Janeiro · #187 of 604 destinations to visit in March · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Rio de Janeiro climate normals — March
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 144 mm / 5.7 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 10 h/day | |
| Daylight | 12.2 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 87 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Rio de Janeiro in March — FAQ
- Is March a good time to visit Rio de Janeiro?
- March in Rio de Janeiro: sweltering, rainy — an excellent time to visit. It ranks #5 of 12 months for Rio de Janeiro on SeasonMap's comfort score (82/100).
- What is the weather like in Rio de Janeiro in March?
- In March, Rio de Janeiro averages a daily high of 30.5°C and a low of 23°C, with about 144.1 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Rio de Janeiro in March?
- Rio de Janeiro has a mean US Air Quality Index of about 87 in March.