Peak in February
Coolest in July
Heavy in January
Peak in dry season
Sea Temperature
Atlantic Ocean(Oceano Atlântico)
Annual Average
Perfect for swimming and water sports
Based on average sea surface temperature
Oceano Atlântico
Rio de Janeiro coastline
Rio de Janeiro Monthly Weather Guide
Click any month to explore daily weather forecasts
January
February
March
April
May
June
July
August
September
October
November
December
Essential Travel Info for Rio de Janeiro
Currency
BRL
R$ Brazilian real
Language
Portuguese
Driving
Right side
Safety
Moderate Safety
GPI: 2.465
Best Time to Visit Rio de Janeiro
Location, climate overview & historical trends
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📍 22.9068° S, 43.1729° W
Open in Google MapsRio de Janeiro is a prominent destination in Brazil.
Located at 22.91°S latitude,Rio de Janeiro experiences a tropical climate with warm temperatures year-round.
Based on 30 years of data, February is the warmest month (avg. 31°C), while July is the coolest. January sees the most rain (39% chance), making July the driest month.
Historical Climate Trend
30-Year Analysis+0.69°C
Total over 30 years
+0.24°C
Per decade
Linear regression analysis of historical maximum temperatures for Rio de Janeiro, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)March, April, May
Best months to visit
28°C
Avg High
Based on 30 years of NASA satellite data,Rio de Janeiro receives approximately 654mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
27.6°
2024 Avg
28.4°
2040 Proj
28.8°
+0.24°C
per decade (observed)
+0.23°C
per decade (CMIP6)
🌡️ Rio de Janeiro has warmed by +0.7°C since 1995. By 2040, an additional +0.4°C is projected (based on CMIP6 rate of 0.232°C/decade), for a total of +1.1°C from 1995 baseline.
NASA POWER (1995-2024) + CMIP6 (CMCC_CM2_VHR4, EC_Earth3P_HR, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, NICAM16_8S)
Travel Intelligence
Exclusive flight analytics & health data for Rio de Janeiro
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Airport-to-Airport Logistics
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Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Balanced traffic
0
slots per day
Peak
May
Low
Nov
Monthly Traffic Distribution
Key Connections
Health & Safety Advisory
CDC travel health recommendations
COVID-19
All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.
Chikungunya
There iselevated chikungunya riskin Brazil.Chikungunya vaccinationmay be considered for people traveling or moving to this location if they are planning to stay for an extended period of time (for example, 6 months or more).
Hepatitis A
Recommended for unvaccinated travelers one year old or older going to Brazil.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.
Hepatitis B
Recommended for unvaccinated travelers younger than 60 years old traveling to Brazil. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Brazil.
Malaria
CDC recommends that travelers going to certain areas of Brazil take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.Transmission areasAll areas in the states of Acre, Amapá, Amazonas, Rondônia, and RoraimaPresent in the states of Maranhão, Mato Grosso, and Pará, but rare cases in their capital cities (São Luis [capital of Maranhão], Cuiabá [capital of Mato Grosso], Belém [capital of Pará])Rare cases and sporadic foci of transmission in rural and forested areas in the states of Espírito Santo, Goiás, Minas Gerais, Mato Grosso do Sul, Piauí, Rio de Janeiro, São Paolo, and TocantinsNo malaria transmission in the cities of Brasília (the capital), Rio de Janeiro, or São PaoloNo malaria transmission at Iguaçu FallsDrug resistanceChloroquineSpeciesP. vivax(90%)P. falciparum(10%)Recommended chemoprophylaxisAtovaquone-proguanil, doxycycline, mefloquine, tafenoquine2Areas with rare cases: No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only)4Updated April 23, 2025See footnotes
Measles
Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.
+3 more
Source: CDC Travelers' Health
View Complete Health GuideRio de Janeiro Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | 31°C | 39% | 🔥 Hot |
| February | 31°C | 34% | 🔥 Hot |
| March | 30°C | 31% | 😊 Pleasant |
| April | 28°C | 23% | ✨ Perfect |
| May | 26°C | 18% | ✨ Perfect |
| June | 26°C | 15% | ✨ Perfect |
| July | 25°C | 13% | ✨ Perfect |
| August | 26°C | 16% | ✨ Perfect |
| September | 27°C | 19% | ✨ Perfect |
| October | 28°C | 26% | 😊 Pleasant |
| November | 28°C | 34% | 😊 Pleasant |
| December | 30°C | 38% | Neutral |
Weather in Cities Near Rio de Janeiro
Explore climate data for popular destinations within easy reach
Compare weather conditions with nearby destinations for your trip planning
Compare Rio de Janeiro Weather vs Popular Destinations
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These destinations share similar weather patterns with Rio de Janeiro. Perfect alternatives if you're looking for the same climate in a different location.
Rio de Janeiro Weather FAQ
When is the best time to visit Rio de Janeiro?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, March, April, May are usually great choices.
When is the hottest month in Rio de Janeiro?
February is historically the hottest month in Rio de Janeiro with average highs of 31°C.
When does it rain the most in Rio de Janeiro?
January typically sees the highest probability of rain (39%).
Is Rio de Janeiro expensive?
Prices vary by season. The "Perfect" weather months usually coincide with peak tourist season and higher prices, while the rainy or cold months offer better deals.