City atlasMexico

San Juan del Río

Decide whether to visit or live in San Juan del Río, then explore current conditions, local people, the map, and concise sourced context.

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Updated Thursday, October 29, 2026 · sourced live layer and versioned editorial content

AI-assisted, evidence-constrained research · how this page is made

Building the sourced atlas for San Juan del RíoThe request is queued. Facts and the map remain available while AI research runs.

Interactive visit / live calculatorHow safe is San Juan del Río for your plan?

66/100

Should I visit San Juan del Río?

Suitable with normal precautions

Official travel guidance advises travelers to check current alerts for Mexico, which include warnings to avoid all but essential travel to certain parts of the country.

high source confidence · current planning signal, not a personal-safety guarantee

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Going aloneSolo visit or moveAfter darkRegular night movementDrivingUsing local roadsHealth sensitiveAir or weather concerns

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Current official alerts require extra planning
Latest air-quality reading is not elevated
Official travel advisory highlights regional safety considerations across Mexico under UK FCDO guidelines.

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: San Juan del Río month by month

Judged purely on 2016–2025 weather records, the friendliest months in San Juan del Río are typically January, November and December, with average daytime highs around 22–23°C. May is usually the warmest month (average high 30°C), January the coldest (average low 8°C), and September the wettest (about 132 mm). These are long-run averages, not a forecast.

Monthly averages computed from 2016–2025 Open-Meteo historical weather records for this location. Long-run averages, not a forecast.
Month	Avg high (°C)	Avg low (°C)	Rain (mm)	Sunshine (h/day)
January	22.6	7.6	4	10.0
February	25.0	8.6	6	10.7
March	27.7	10.8	9	11.4
April	29.2	12.8	13	11.9
May	29.7	14.5	39	12.3
June	26.4	14.2	122	11.2
July	25.0	13.6	113	11.2
August	25.2	13.7	118	11.0
September	24.0	13.5	132	10.3
October	23.7	11.9	53	9.9
November	23.3	9.5	13	10.1
December	22.3	8.0	7	10.1

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Reader Travel & Livability Pulse

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Dates that matter

Past and future events in San Juan del Río

Future · verified dates only

Upcoming

No future event in San Juan del Río currently has a sufficiently reliable date and source. This is checked again on every refresh.

Past · documented context

Previously

Documented history · 1531
The city was founded on the Feast of Saint John the Baptist June 24, 1531, by Fernando de Tapia, an Otomí chieftain that converted to Catholicism and dropped his Native name Conín.
Foundation of San Juan del Río
The city was founded on the Feast of Saint John the Baptist on June 24, 1531.
Completion of the Stone Bridge
The historic stone bridge (Bridge of History) was completed on January 23, 1711.

Sources checked (25)

Interactive geography

See San Juan del Río in context

01 · Overview

San Juan del Río, in brief

San Juan del Río is mapped here through verified geographic facts and source-linked daily data. Its longer editorial profile is in the enrichment queue.

02 · History