Porto Velho
Decide whether to visit or live in Porto Velho, then explore current conditions, local people, the map, and concise sourced context.
Check visit & living safetyUpdated Monday, October 19, 2026 · sourced live layer and versioned editorial content
AI-assisted, evidence-constrained research · how this page is made
Would you visit or live in Porto Velho?
Choose your plan and circumstances. The result changes immediately using today's advisory, weather, air-quality, and sourced local signals.
Suitable with normal precautions
Official travel advice notes new information regarding elections taking place on 4 October and political events, advising caution under 'Warnings and insurance' and 'Safety and security' pages.
high source confidence · current planning signal, not a personal-safety guaranteeSee the evidence and calculation
- Current official alerts require extra planning
- Latest air-quality reading is not elevated
- High violent crime rates ranking it among the top 50 globally and 7th among Brazilian state capitals according to a 2024 report
- Ranked last in public sanitation among Brazil's 100 largest cities in a 2024/2025 report by Trata Brasil, with limited municipal drinking water and sewage connections
- Ranked last in a 2024 study ranking quality of life among Brazil's state capitals
- Official travel advisory highlights political events and elections
The score combines dated official-advisory wording, weather, air quality, sourced local context, and your selections. It does not predict crime or individual outcomes. Check local authorities and professional advice before a safety-critical decision.
Climate normals · 2016–2025
When to go: Porto Velho month by month
Judged purely on 2016–2025 weather records, the friendliest months in Porto Velho are typically June, July and August, with average daytime highs around 31–33°C. September is usually the warmest month (average high 34°C), July the coldest (average low 22°C), and January the wettest (about 346 mm). These are long-run averages, not a forecast.
| Month | Avg high (°C) | Avg low (°C) | Rain (mm) | Sunshine (h/day) |
|---|---|---|---|---|
| January | 29.8 | 23.6 | 346 | 8.2 |
| February | 29.5 | 23.6 | 336 | 7.5 |
| March | 29.5 | 23.6 | 339 | 7.5 |
| April | 29.7 | 23.6 | 277 | 8.6 |
| May | 30.0 | 23.2 | 142 | 10.0 |
| June | 30.6 | 22.3 | 38 | 10.6 |
| July | 32.8 | 21.7 | 6 | 11.0 |
| August | 33.4 | 22.7 | 42 | 10.4 |
| September | 33.6 | 23.9 | 89 | 9.8 |
| October | 32.6 | 24.1 | 154 | 9.6 |
| November | 31.2 | 23.9 | 276 | 8.7 |
| December | 30.0 | 23.7 | 333 | 8.2 |
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People and places shaping Porto Velho
AI-assisted local research, regenerated with the dated live layer. Every requested module remains visible; facts appear only after a source check, and unavailable categories explain what is still being researched.
Research updated Sunday, October 4, 2026Past and future events in Porto Velho
Upcoming
No future event in Porto Velho currently has a sufficiently reliable date and source. This is checked again on every refresh.
Previously
- Documented history · 1914
Officially founded on October 2, 1914, Porto Velho was founded by pioneers around 1907, during the construction of the Madeira-Mamoré railroad.
- Documented history · 1943
Porto Velho's survival is associated with the better conditions of the area where it was built, its easy access by the river and its harbor: these were all considerations in the choice of Porto Velho as the capital of the newly formed Federal Territory of Guaporé, in 1943.
- Documented history · 1925
The Catedral Metropolitana Sagrado Coração de Jesus is the cathedral archiepiscopal see of a Latin Catholic jurisdiction that started on May 1, 1925.
- Documented history · 1982
On October 4, 1982, it was promoted as Metropolitan Archdiocese of Porto Velho.
- Documented history
Officially founded on October 2, 1914, Porto Velho was founded by pioneers around 1907, during the construction of the Madeira-Mamoré railroad.
Sources checked (2)
Interactive geography
See Porto Velho in context
Keep the deeper context
Stable history, culture, districts, and practical reference remain in the main reading flow while the live layers above continue changing.
01 · OverviewPorto Velho, in brief
Porto Velho is mapped here through verified geographic facts and source-linked daily data. Its longer editorial profile is in the enrichment queue.
02 · HistoryHow Porto Velho took shape
This section is being expanded from verified sources. Current facts, weather, mapping, and official links remain available while editorial review continues.
03 · VisitVisiting Porto Velho
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04 · Food & cultureFood and everyday culture in Porto Velho
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05 · ArtsArts and cultural life in Porto Velho
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06 · EconomyWork and the economy in Porto Velho
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07 · SafetySafety and practical guidance for Porto Velho
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08 · QuestionsQuestions about Porto Velho
This section is being expanded from verified sources. Current facts, weather, mapping, and official links remain available while editorial review continues.
Frequently Asked Questions about Porto Velho
Essential geographic, demographic, currency, and travel context verified from primary records.
01 · Q&AWhere is Porto Velho located and what are its coordinates?
Porto Velho is situated in Brazil at geographic coordinates -8.7619, -63.9039, with an elevation monitored in regional geographic surveys.
02 · Q&AWhat is the population and time zone of Porto Velho?
Porto Velho has a recorded population of approximately 548,952 and observes the America/Porto_Velho time zone.
03 · Q&AWhat languages and currency are used in Porto Velho?
Official and commonly spoken languages in Porto Velho include PT-BR, Spanish, English, French, with BRL used for local transactions.
04 · Q&AHow can I check live conditions and daily updates for Porto Velho?
Today's Atlas provides continuous tracking for Porto Velho, featuring real-time weather conditions, daylight cycles, local geographic signals, and verified daily briefs.