Rio de Janeiro Temperature by Month
The average annual maximum temperature in Rio de Janeiro, Rio de Janeiro State, Brazil is 29°C (84°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Rio de Janeiro compares to cities worldwide.
Rio de Janeiro Monthly Temperatures
Rio de Janeiro enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a very warm 32°C (90°F) in February. Nights are consistently cool, with lows between 24°C (75°F) and 18°C (64°F).
The chart below illustrates the average maximum day and minimum night temperatures in Rio de Janeiro by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. February, the city's warmest month, sees 202 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Rio de Janeiro Temperatures: 1976-2026
Browse day-by-day temperature records for Rio de Janeiro spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Rio de Janeiro vs Brazil
The map below shows the annual temperature across Brazil. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
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Rio de Janeiro vs World: Temperature Compared
Rio de Janeiro's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Rio de Janeiro?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Rio de Janeiro, July is the coolest month, with average highs of 26°C (79°F) and humidity around 77% — considered high. In February, the warmest month, temperatures average 32°C (90°F) with 79% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Rio de Janeiro's weather — including monthly rainfall, sunshine hours, and humidity — visit our Rio de Janeiro climate page.
