Itaguaí
Decide whether to visit or live in Itaguaí, then explore current conditions, local people, the map, and concise sourced context.
Check visit & living safetyUpdated Thursday, October 22, 2026 · sourced live layer and versioned editorial content
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Climate normals · 2016–2025
When to go: Itaguaí month by month
Judged purely on 2016–2025 weather records, the friendliest months in Itaguaí are typically June, July and August, with average daytime highs around 26–27°C. January is usually the warmest month (average high 32°C), July the coldest (average low 16°C), and February the wettest (about 217 mm). These are long-run averages, not a forecast.
| Month | Avg high (°C) | Avg low (°C) | Rain (mm) | Sunshine (h/day) |
|---|---|---|---|---|
| January | 31.5 | 23.0 | 208 | 10.0 |
| February | 31.5 | 22.9 | 217 | 9.9 |
| March | 30.8 | 22.3 | 191 | 10.1 |
| April | 28.4 | 20.2 | 107 | 9.7 |
| May | 26.8 | 17.9 | 59 | 9.1 |
| June | 26.0 | 16.8 | 37 | 8.8 |
| July | 25.9 | 15.8 | 29 | 9.1 |
| August | 26.7 | 16.6 | 56 | 8.7 |
| September | 29.0 | 18.8 | 61 | 9.3 |
| October | 28.8 | 20.2 | 115 | 8.4 |
| November | 28.5 | 20.3 | 163 | 9.2 |
| December | 30.3 | 21.8 | 163 | 10.0 |
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Interactive geography
See Itaguaí in context
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01 · DistrictsDistricts and local character in Itaguaí
Where is Itaguaí situated geographically?
Itaguaí is a municipality situated in the Brazilian state of Rio de Janeiro. Lying approximately 75 km west of the city of Rio de Janeiro on the road to Santos, the municipality rests midway between Rio de Janeiro and Angra dos Reis.
How does the local landscape shape its boundaries?
The municipality occupies an area of 273 km2. Its landscape is defined by its position between the shore of Sepetiba Bay and the Atlantic Rainforest.
02 · ArtsArts and cultural life in Itaguaí
How does the landscape shape Itaguaí?
Itaguaí is a municipality situated in the Brazilian state of Rio de Janeiro, positioned about 75 km west of the city of Rio de Janeiro. Founded in 1688, the municipality lies midway between Rio de Janeiro and Angra dos Reis, occupying an area of 273 km2 within the country of Brazil.
What geographical features define the surrounding terrain? The municipality rests directly between the Atlantic Rainforest and the shore of Sepetiba Bay. The linguistic origins of the name Itaguaí derive from Old Tupi terms combining itá for stone, kûá for inlet or cove, and y for river, translating descriptively to river of the stone inlet or cove.
How do local waterways and coastal inlets influence the environment? The surrounding geography features marine inlets and coastal ecosystems that frame the deepwater shipping facilities operating in the area, including the Port of Itaguai and the terminals located on Guaíba island. These coastal and terrestrial boundaries place the municipality directly within a vital shipping corridor connected to the Atlantic coast.
03 · VisitVisiting Itaguaí
Itaguaí is a municipality in the Brazilian state of Rio de Janeiro. Founded in 1688, the city lies approximately 75 km west of the city of Rio de Janeiro on the road to Santos, situated between the shore of Sepetiba Bay and the Atlantic Rainforest.
What geographical features define the landscape around Itaguaí?
The municipality rests between the marine environment of Sepetiba Bay and the adjacent Atlantic Rainforest. The name Itaguaí itself originates from the Old Tupi terms for stone, inlet or cove, and river, translating to river of the stone inlet or cove.
How does the regional landscape incorporate industrial infrastructure?
The area contains the Port of Itaguai, a deepwater port opened in 1982 that includes Sepetiba and Guaiba island. The Ilha Guaiba terminal features deep water berths for large bulk carriers and is connected to the mainland by a railway bridge. The wider landscape functions as a dormitory town for workers of the industrial western zone of Rio de Janeiro and hosts the seat of the Roman Catholic Diocese of Itaguaí.
For more information, consult the Wikipedia entry on Itaguaí and the GeoNames record for Itaguaí.
04 · OverviewItaguaí, in brief
Itaguaí is a municipality located in the Brazilian state of Rio de Janeiro. Founded in 1688, the city is positioned midway between Rio de Janeiro and Angra dos Reis, approximately 75 km west of the city of Rio de Janeiro on the road to Santos.
What defines the landscape and geographic setting of Itaguaí?
The municipality covers an area of 273 square kilometers and is situated directly between the shore of Sepetiba Bay and the Atlantic Rainforest. The name Itaguaí derives from Old Tupi terms meaning river of the stone inlet or cove, referencing the local topography where inland rivers meet the coastal indentation.
Positioned on this coastal strip, the city's terrain bridges marine waters and dense vegetation. This geographic positioning supports major infrastructure, including deepwater port facilities such as the Port of Itaguaí, the Port of Sepetiba, and the Ilha Guaiba terminal. These maritime terminals accommodate large bulk carriers reaching 170,000 deadweight, linking interior iron ore extraction from Minas Gerais to global export routes via railway connections and coastal berths.
Beyond its heavy industrial and port zones, the municipality functions as a dormitory town for workers employed in the industrial western zone of Rio de Janeiro. The area also serves as the seat of the Roman Catholic Diocese of Itaguaí. Recorded population figures for the municipality reached 134,819 residents in 2020.
- Geographic position: Between Sepetiba Bay and the Atlantic Rainforest
- Area: 273 square kilometers Source
- Foundation year: 1688
- Administrative status: Municipality in Rio de Janeiro, Brazil, and seat of a Roman Catholic diocese
Frequently Asked Questions about Itaguaí
Essential geographic, demographic, currency, and travel context verified from primary records.
01 · Q&AWhere is Itaguaí located and what are its coordinates?
Itaguaí is situated in Brazil at geographic coordinates -22.8522, -43.7753, with an elevation monitored in regional geographic surveys.
02 · Q&AWhat is the population and time zone of Itaguaí?
Itaguaí has a recorded population of approximately 123,980 and observes the America/Sao_Paulo time zone.
03 · Q&AWhat languages and currency are used in Itaguaí?
Official and commonly spoken languages in Itaguaí include PT-BR, Spanish, English, French, with BRL used for local transactions.
04 · Q&AHow can I check live conditions and daily updates for Itaguaí?
Today's Atlas provides continuous tracking for Itaguaí, featuring real-time weather conditions, daylight cycles, local geographic signals, and verified daily briefs.