WanderWhen

Rio de Janeiro weather in May

May is one of the best months to visit Rio de Janeiro. Expect highs around 26°C, lows near 20°C, and about 8.2 days with rain.

9.6 · Excellenttravel score for May
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
26°C
Avg low
20°C
Rainfall
66 mm
Rain days
8.2
Sunshine
9.5 h/day
Daylight
10.9 h

What to pack for Rio de Janeiro in May

  • t-shirts and light layers
  • a light jacket for evenings
  • a packable rain layer

Humidity averages 81%; max daily wind around 16 km/h.

How May compares

January: 5.8/10 JFebruary: 5.6/10 FMarch: 6.7/10 MApril: 8.8/10 AMay: 9.6/10 MJune: 9.5/10 JJuly: 9.8/10 JAugust: 9.3/10 ASeptember: 9.4/10 SOctober: 8.1/10 ONovember: 8.0/10 NDecember: 6.3/10 D

Best months in Rio de Janeiro: May–September. See the full best time to visit Rio de Janeiro guide.

Rio de Janeiro in May: the details

In May, Rio de Janeiro sees average daytime highs of 26°C (79°F) and overnight lows of 20°C (68°F). Rainfall totals roughly 66 mm across 8.2 rainy days, and the sun shines about 9.5 hours per day with 10.9 hours of daylight mid-month. Relative humidity averages 81%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Rio de Janeiro, Brazil (-22.91, -43.18) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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