Climate for Station: Galeao Antonio Carlos Jobim, Rio de Janeiro, Brazil
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Climate Analysis & Overview
Galeao Antonio Carlos Jobim in Rio de Janeiro is experiencing a complex climate narrative. While the all-time trend shows a slight warming in high temperatures, the recent decade has seen a more pronounced rise. Concurrently, the region's low temperatures have shown a cooling trend over the past ten years, contrasting with the slight all-time cooling. Precipitation patterns have become marginally more concentrated, indicating potential shifts in rainfall distribution.
Tropical Climate Dynamics
Galeao Antonio Carlos Jobim is situated in a tropical savanna climate zone, classified as "Aw" under the Köppen system. This classification indicates a distinct wet and dry season, typical of the region. The geography of Rio de Janeiro, with its proximity to the Atlantic Ocean and the surrounding mountains, influences local weather patterns significantly. These features contribute to the area's warm temperatures and occasional heavy rainfall events.
Temperature Trends: A Mixed Bag
The all-time temperature trends at this station reveal a slight warming in high temperatures, with an increase of 0.05°C (0.09°F). In contrast, the low temperatures have experienced a minor cooling, with a decrease of 0.03°C (0.05°F). Over the past decade, however, the station has recorded a more pronounced warming in high temperatures, with a rise of 1.62°C (2.92°F). Interestingly, the low temperatures have cooled by 0.39°C (0.70°F) during the same period. This divergence between long-term and recent trends highlights the dynamic nature of the region's climate.
Precipitation Patterns: Marginal Changes
The Precipitation Concentration Index (PCI) at Galeao Antonio Carlos Jobim has shown a marginal increase from a baseline of 12.79 to a current value of 13.15. PCI measures how rainfall is distributed throughout the year, with higher values indicating more concentrated precipitation events. This slight increase suggests that rainfall is becoming marginally more concentrated, potentially leading to fewer but more intense rain events. While this change is not drastic, it could have implications for water management and flood risk in the region.
Temperature Extremes: Records of Note
The station has recorded an absolute maximum temperature of 43.0°C (109.4°F) and a minimum of 6.0°C (42.8°F). These extremes underscore the variability and potential intensity of weather events in the area. Such temperature records are important for understanding the potential impacts of climate change on local weather patterns and can inform adaptation strategies.
Regional Climate Goals and Context
Brazil has been actively working towards its climate goals, aiming to reduce greenhouse gas emissions and increase resilience to climate impacts. In this context, the climate trends observed at Galeao Antonio Carlos Jobim provide valuable insights into the challenges and opportunities facing the region. The recent shifts in temperature and precipitation patterns may influence local policy and adaptation strategies as Brazil continues to navigate its climate commitments.
Station Statistics
10-Year Trend
High: +1.62 °C/decade
Low: -0.39 °C/decade
Rain: -1.96 mm/decade
25-Year Trend
High: +0.03 °C/decade
Low: -0.07 °C/decade
Rain: +0.37 mm/decade
50-Year Trend
High: +0.05 °C/decade
Low: -0.03 °C/decade
Rain: +0.08 mm/decade
All-Time Trend
High: +0.05 °C/decade
Low: -0.03 °C/decade
Rain: +0.08 mm/decade
Percentage Above-Average Days
Last 12 Months: 49.3%
This Year: 53.2%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 13.1
Historical Average: 12.8
Percentile Rank of Last 12 Months ℹ️
High: 90th percentile
Low: 47th percentile
Rain: 26th percentile
Change in Variance ℹ️
High: -11.0%
Low: +5.0%
Intraday: -12.9%
Data Coverage
69.5%
First Year of Data
1951
Station Location
Historical Weather Records
| Max High | Avg High | Min High | Max Avg | Avg Avg | Min Avg | Max Low | Avg Low | Min Low | Max Precipitation | Avg Precipitation | Max Snow | Avg Snow | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record | 43.0 °C | — | 16.0 °C | 36.1 °C | — | 14.5 °C | 29.0 °C | — | 6.0 °C | 308.1 mm | — | — | — |
| January | 43.0 °C | 31.8 °C | 22.0 °C | 36.1 °C | 27.2 °C | 20.1 °C | 29.0 °C | 23.5 °C | 18.0 °C | 105.5 mm | 6.5 mm | — | — |
| February | 42.0 °C | 32.5 °C | 23.0 °C | 33.6 °C | 27.6 °C | 20.5 °C | 29.0 °C | 23.8 °C | 17.0 °C | 308.1 mm | 5.7 mm | — | — |
| March | 40.6 °C | 31.2 °C | 22.0 °C | 32.3 °C | 26.6 °C | 20.9 °C | 28.7 °C | 23.2 °C | 17.6 °C | 103.9 mm | 5.4 mm | — | — |
| April | 40.0 °C | 29.6 °C | 21.0 °C | 32.6 °C | 25.1 °C | 19.5 °C | 28.0 °C | 21.6 °C | 11.0 °C | 91.5 mm | 3.8 mm | — | — |
| May | 39.0 °C | 27.5 °C | 20.0 °C | 30.2 °C | 22.8 °C | 15.9 °C | 25.0 °C | 19.4 °C | 10.0 °C | 47.1 mm | 2.5 mm | — | — |
| June | 36.0 °C | 26.7 °C | 18.0 °C | 28.8 °C | 21.6 °C | 15.1 °C | 24.0 °C | 18.0 °C | 10.0 °C | 84.2 mm | 1.8 mm | — | — |
| July | 39.0 °C | 26.4 °C | 16.0 °C | 28.1 °C | 21.2 °C | 14.5 °C | 23.0 °C | 17.2 °C | 6.0 °C | 35.6 mm | 1.5 mm | — | — |
| August | 42.0 °C | 27.2 °C | 16.0 °C | 29.3 °C | 21.8 °C | 15.3 °C | 24.0 °C | 17.8 °C | 11.0 °C | 54.4 mm | 1.6 mm | — | — |
| September | 43.0 °C | 27.5 °C | 17.0 °C | 29.9 °C | 22.5 °C | 16.2 °C | 24.0 °C | 18.9 °C | 10.0 °C | 65.6 mm | 2.8 mm | — | — |
| October | 42.0 °C | 28.4 °C | 18.0 °C | 31.2 °C | 23.8 °C | 17.1 °C | 27.0 °C | 20.3 °C | 11.0 °C | 61.3 mm | 3.5 mm | — | — |
| November | 43.0 °C | 29.3 °C | 19.0 °C | 32.9 °C | 24.8 °C | 17.7 °C | 28.0 °C | 21.4 °C | 11.0 °C | 78.5 mm | 5.8 mm | — | — |
| December | 42.0 °C | 30.9 °C | 20.7 °C | 32.5 °C | 26.3 °C | 19.2 °C | 29.0 °C | 22.7 °C | 15.5 °C | 88.2 mm | 6.9 mm | — | — |
Data Visualisations
Remove WatermarksCurrent Year Climate Trends vs Historical
Max Temperature this Year | 1 of 6
Climate 12-Month Moving Averages
Max Temperature 12-Month MA | 1 of 6
Daily Data Points and Averages Throughout the Year
Average Max Temperature Throughout Year | 1 of 5
