Rio de Janeiro weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Good
Best time to visit: January – December
What is the weather like in Rio de Janeiro in March?
In March, Rio de Janeiro is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sea averages 25.4 °C – pleasant for swimming. The sun shines for around 7 hours a day. It is the rainy season: rain falls on about 15 days, totalling 118 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in Rio de Janeiro.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 81 | 78 | 84 |
| Day | 31° | 30° | 28° |
| Night | 23° | 23° | 21° |
| Sea | 25° | 25° | 25° |
| Sun | 8 h | 7 h | 7 h |
| Rain days | 13 | 15 | 11 |
More details for March
- Daylight
- 12 h 15 min05:55 – 18:10
- UV index
- 10 · very highclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 58 %on average
- Hot days
- 16 days30 °C or more
- Time zone
- UTC−3America/Sao_Paulo
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 20 %21 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in March
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Rio de Janeiro in March: quick answers
Is Rio de Janeiro hot in March?
Yes. In March, Rio de Janeiro is hot: daytime highs average 30 °C and nights stay around 23 °C. On about 16 days the thermometer climbs to 30 °C or more.
Can you swim in Rio de Janeiro in March?
Yes. In March the sea averages 25.4 °C – pleasant for swimming.
Does it rain much in Rio de Janeiro in March?
It rains often – on about 15 days, adding up to 118 mm.
Rio de Janeiro month by month
The whole year in Rio de JaneiroAll destinations: Brazil
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)