Rio de Janeiro Weather in May
In May, Rio de Janeiro averages a high of 27°C (81°F) and a low of 19°C (67°F), based on 22 years of historical weather data from RIO DE JANEIRO.
27°C
Average high
81°F
19°C
Average low
67°F
37°C
Record high
99°F · 2024
11°C
Record low
52°F · 1973
What to Expect in Rio de Janeiro in May
Typical May days in Rio de Janeiro reach 27°C (81°F) during the afternoon and cool to around 19°C (67°F) overnight. On average, measurable rain falls on about 19% of days this month. Over the past 22 years, May temperatures in Rio de Janeiro have ranged from a record high of 37°C (2024) down to a record low of 11°C (1973).
For a day-by-day look or other months, see the full Rio de Janeiro weather history.