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Rio de Janeiro, Brazil · Tropical

Rio de Janeiro: best months to visit

July (8.3/10) · January (5.4/10).

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 22.90°S · 43.17°W
⚡ Quick answer
July
Depends on your goals
8.3/10
☀️ Jul
Top score (8.3/10)
🌤️ Aug
Alt. (8.3/10)
Jan
Plus rude (5.4/10)
🌴 Tropical☀️ High UV☀️ Dry all year
Photo par Kotryna Juskaite via Unsplash
Decide

When to visit Rio de Janeiro?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Rio de Janeiro, July and August clearly stand out. January concentrates the least favorable conditions.
Top & avoid
🏆 July · 8.3 August · 8.3 May · 8.2 June · 8.2 ⚠️ January · 5.4
5.4
Jan
5.6
Feb
5.6
Mar
8.0
Apr
8.2
May
8.2
Jun
8.3
Jul
8.3
Aug
8.1
Sep
7.9
Oct
7.9
Nov
8.0
Dec
Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Rio de Janeiro offers 9 comfortable months, without any month really to avoid. The gap stays moderate: 8.3 in July vs 5.4 in January.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 9 comfortable months (Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec)
MonthT° minT° maxRain %mm/daySunScoreVerdict
🌥️ January →75°F86°F35%5.0mm6.8h5.4/10Decent period
🌥️ February →75°F86°F25%4.5mm7.1h5.6/10Decent period
🌥️ March →75°F84°F26%4.3mm6.7h5.6/10Decent period
☀️ April →72°F81°F30%2.8mm6.0h8.0/10Best period
☀️ May →68°F77°F19%1.9mm6.0h8.2/10Best period
☀️ June →66°F77°F20%1.3mm5.8h8.2/10Best period
☀️ July →64°F75°F13%1.3mm6.1h8.3/10Best period
☀️ August →64°F75°F16%2.0mm6.0h8.3/10Best period
☀️ September →68°F79°F23%2.0mm4.9h8.1/10Best period
☀️ October →70°F79°F29%2.9mm4.9h7.9/10Best period
☀️ November →70°F79°F33%4.3mm5.6h7.9/10Best period
☀️ December →73°F82°F35%4.2mm5.8h8.0/10Best period
📊 Quick read
Optimal window
Apr → Dec
Good transition
Jan · Mar
Tough period
none
🌡️ Detailed conditions (July)
🌡️ Feel
Comfortable
☀️ UV
4.9 · Moderate
💧 Humidity feel
62°F · Pleasant
☔ Rain
13% · 1.3 mm/day
🌅 Sunshine
6.1h/day
Week by week

Rio de Janeiro week by week: your odds of avoiding rain

For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.

Safest week: Jul 23 to Jul 29, mostly dry in 10 years out of 10 (0.5 rainy day(s) on average).

Most exposed: Jan 8 to Jan 14, mostly dry in 3 years out of 10 (3.3 rainy days on average).

Number = years out of 10 with at most 2 rainy days in the week. Source: ERA5 reanalysis (ECMWF) via Open-Meteo, daily data 2016-2025. Rainy day = at least 1 mm, as everywhere on the site.
JanJan 14/1086°FJan 83/1086°FJan 158/1087°FJan 226/1086°FJan 296/1088°F
FebFeb 57/1085°FFeb 127/1087°FFeb 198/1087°FFeb 266/1086°F
MarMar 57/1085°FMar 127/1085°FMar 196/1084°FMar 268/1083°F
AprApr 23/1082°FApr 97/1082°FApr 167/1080°FApr 235/1081°FApr 3010/1080°F
MayMay 76/1079°FMay 147/1077°FMay 2110/1077°FMay 289/1078°F
JunJun 49/1077°FJun 115/1076°FJun 189/1078°FJun 259/1078°F
JulJul 28/1076°FJul 910/1077°FJul 1610/1075°FJul 2310/1078°FJul 309/1075°F
AugAug 610/1077°FAug 139/1078°FAug 207/1077°FAug 278/1077°F
SepSep 37/1079°FSep 109/1081°FSep 178/1080°FSep 247/1078°F
OctOct 17/1080°FOct 85/1080°FOct 158/1079°FOct 226/1080°FOct 295/1080°F
NovNov 57/1079°FNov 126/1082°FNov 195/1079°FNov 266/1082°F
DecDec 34/1082°FDec 105/1085°FDec 174/1084°FDec 245/1085°F

A specific date? The app computes the same figure day by day.

10-year trend

Annual temperatures — Rio de Janeiro

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

T° maxT° meanT° min64°68°72°75°79°82°86°201620172018201920202021202220232024202583°F — decade peak (2024)+0.23°F / decade
Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🌞 Dry season🏖️ Beaches🌊 Surf
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Rio de Janeiro

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Brazil

🗣️LanguagePortuguese
💶CurrencyBrazilian Real (R$)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘStable
🔥Hottest monthJanuary · 86°F
❄️Coolest monthJuly · 75°F
🌧️Rainiest month ⓘJanuary · 35%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Explore

Related destinations & guides

If this destination doesn't fit your dates, here are alternatives and guides.

Location

Where is Rio de Janeiro ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Tropical climate with a 8.3 → 5.4 gap between best and worst month. 10 years of ERA5 data to choose by project.
22.90°S · 43.17°W
Questions

Frequently asked questions

What is the best time to visit Rio de Janeiro?
July is the best month with 75°F highs, 64°F lows, 6.1h of sunshine and 13.0% rainy days. The months of July & May offer comparable conditions.
How many hours of sunshine does Rio de Janeiro get in July?
Rio de Janeiro averages 6.1 sunshine hours per day in July. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Rio de Janeiro?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Rio de Janeiro in July?
In July, overnight lows reach 64°F, while afternoon highs average 75°F.
Is Rio de Janeiro good in winter?
In winter (December-February), Rio de Janeiro scores 6.1/10 on average — Acceptable conditions for cultural visits.. The best month overall remains July with a score of 7.8/10.
When should you avoid Rio de Janeiro?
January is the most difficult month to visit Rio de Janeiro, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.