Brazil Rio de Janeiro Weather in January (Peak Summer) — Climate Guide
January (Peak Summer) in Rio de Janeiro is moderate
January (Peak Summer) is moderate for Rio de Janeiro.
Peak summer, with the New Year's Réveillon — and the year's biggest crowds.
Travel score
Rio de Janeiro January (Peak Summer) Weather Stats
Avg High
32°C
Avg Low
24°C
Rainy Days
13
110mm total
Sunshine
7h
Daily avg
Humidity
80%
very humid
UV Index
12
Extreme
Wind
13 km/h
Gusts 28
Sea Temp
26°C
best for swimming
Crowds
Very busy
At attractions
January (Peak Summer) Sunrise & Sunset
Air Quality
PM2.5
14 μg/m³
PM10
28 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
25°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 28 km/h
Activities Recommended for January (Peak Summer)
January (Peak Summer) Travel Pros & Cons
Pros
- Best for swimming
- Réveillon on Copacabana
Cons
- 32/24°C, 80% humidity
- Afternoon downpours
- Hotels at their priciest
January (Peak Summer) Events & Festivals
- Réveillon on Copacabana (New Year, ~2 million people)
- Brazilian summer school holidays
Rio de Janeiro in January (Peak Summer) — Full Picture
Peak summer, with the New Year's Réveillon — and the year's biggest crowds.
What to Wear & What to Pack
High summer. Short sleeves, shorts, swimwear.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
28.3°C
22°C
11/mo
Summer (Jun·Jul·Aug)
25.3°C
18.7°C
7/mo
Autumn (Sep·Oct·Nov)
27°C
20.7°C
10.3/mo
Winter (Dec·Jan·Feb)
Current31.3°C
23.7°C
12.7/mo
Rio de Janeiro Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 32° | 24° | 13d·110mm | 7h | 80% | 12 | Very busy | Peak | |
| 32° | 24° | 12d·110mm | 7h | 80% | 12 | Very busy | Peak | |
| 31° | 24° | 12d·90mm | 7h | 80% | 11 | Busy | Peak | |
| April (Early Autumn — Value) (Best) | 28° | 22° | 12d·100mm | 6h | 80% | 9 | Moderate | Shoulder |
| May (The Pick) (Best) | 26° | 20° | 9d·75mm | 6h | 80% | 7 | Moderate | Shoulder |
| 25° | 19° | 7d·50mm | 6h | 78% | 7 | Moderate | Shoulder | |
| July (School Holidays) (Best) | 25° | 18° | 7d·50mm | 6h | 78% | 7 | Busy | Peak |
| August (Best) | 26° | 19° | 7d·50mm | 6h | 78% | 8 | Moderate | Shoulder |
| September (A Top Month) (Best) | 26° | 19° | 9d·80mm | 6h | 78% | 9 | Moderate | Shoulder |
| October (Spring) (Best) | 27° | 21° | 11d·100mm | 6h | 80% | 10 | Moderate | Shoulder |
| November (Late Spring) (Best) | 28° | 22° | 11d·110mm | 7h | 80% | 11 | Moderate | Shoulder |
| 30° | 23° | 13d·130mm | 7h | 80% | 12 | Very busy | Peak |
View Other Months
Rio de Janeiro January (Peak Summer) Hotel Picks
Frequently Asked Questions
Is January (Peak Summer) a good time to visit Rio de Janeiro?
Rio de Janeiro in January (Peak Summer) is moderate. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Rio de Janeiro in January (Peak Summer)?
Rio de Janeiro January (Peak Summer) averages a high of 32°C and a low of 24°C.
Does it rain much in Rio de Janeiro in January (Peak Summer)?
Rio de Janeiro January (Peak Summer) averages 110mm of rainfall over about 13 rainy days.
What should I wear in Rio de Janeiro in January (Peak Summer)?
High summer. Short sleeves, shorts, swimwear.
What time are sunrise and sunset in Rio de Janeiro in January (Peak Summer)?
Rio de Janeiro January (Peak Summer) sunrise is 05:15 and sunset is 18:55, with 13h 40min of daylight.
What's the air quality like in Rio de Janeiro in January (Peak Summer)?
Rio de Janeiro January (Peak Summer) air quality (AQI) averages 50, rated Good. PM2.5 averages 14μg/m³.
What activities are recommended in Rio de Janeiro in January (Peak Summer)?
In January (Peak Summer), Rio de Janeiro is great for Ipanema, Copacabana, Réveillon.
Is January (Peak Summer) peak season in Rio de Janeiro?
Rio de Janeiro January (Peak Summer) crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Rio de Janeiro
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.