Verdict: Good month
Rio de Janeiro Weather in January
January runs warm in Rio de Janeiro, with daily highs around 29°C (84°F) and nights near 23°C (73°F). It's also the wet side of the calendar: rain falls on about 16 days, so build flexibility into plans. Overall, January is a solid month to visit Rio de Janeiro.
Average high
29°C / 84°F
Average low
23°C / 73°F
Rain days
~16
Precipitation
156 mm
What to pack for Rio de Janeiro in January
- Summer clothes, plus one light layer for air-con and evenings
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 16 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
January against the rest of the year
Warmest in Rio de Janeiro: Jan (29°C / 84°F) · Coolest: Jun (25°C / 77°F) · Wettest: Dec (~17 rain days)
29°
23°
Jan
29°
24°
Feb
29°
23°
Mar
27°
21°
Apr
26°
20°
May
25°
19°
Jun
25°
18°
Jul
25°
18°
Aug
27°
20°
Sep
26°
21°
Oct
27°
21°
Nov
28°
22°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)