Rio Marathon
Rio de Janeiro, Brazil · Monday 21 June 2027
The Rio Marathon is an annual long-distance running event held in Rio de Janeiro, Brazil, typically taking place in June. The race course measures 42.195 kilometers and is known for its scenic route along the city's iconic coastline, passing through neighborhoods such as Flamengo, Copacabana, Ipanema, Arpoador, Leblon, Botafogo, and Leme.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:02:54
Time difference: +2.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain74m
Elevation High8m
Elevation Low0m
Weather Forecast
High22°C
Low19°C
Chance of Rain49%
How hard is Rio Marathon?
Moderateharder than 52% of marathons
Flattest / easiestHardest
On our difficulty model, Rio Marathon plays about 7 minutes slower than an average road marathon for a 3:30 runner. It ranks #549 hardest of 1150 marathons we analyse, and #3 of 6 in Brazil. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Rio Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Rio Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:00:26 | +00:26 |
| 3:30:00 | 3:31:38 | +01:38 |
| 4:00:00 | 4:02:54 | +02:54 |
| 4:30:00 | 4:34:13 | +04:13 |
| 5:00:00 | 5:05:36 | +05:36 |
| 5:30:00 | 5:37:02 | +07:02 |
| 6:00:00 | 6:08:32 | +08:32 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Rio Marathon 2027 Course Analysis
Rio Marathon is a full marathon held in Rio de Janeiro, Brazil. It is scheduled for Monday 21 June 2027. The course is run on road surface with 74m of total climbing, with its high point near 8m above sea level. For registration and full race details, visit the official Rio Marathon website.
Elevation Profile
This is a very flat course, with only 74m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for June, the expected race day conditions are as follows. Moderate temperatures between 19°C and 22°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a moderate chance of rain (49%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Surface Type: Road
Rio Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Rio Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Rio Marathon fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in Brazil
Maratona Monumental de Brasília
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Manaus Marathon
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Road374m gainApr 2027
Rio de Janeiro Marathon
Rio de Janeiro, Brazil
Road174m gainMay 2027
Maratona do Rio
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Porto Alegre Marathon
Porto Alegre, Brazil
Road204m gainJune 2027