City atlasPuerto Rico

San Juan

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

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Updated Sunday, September 13, 2026 · sourced live layer and versioned editorial content

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

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

Climate normals · 2016–2025

When to go: San Juan month by month

Judged purely on 2016–2025 weather records, the friendliest months in San Juan are typically January, February and March, with average daytime highs around 28–29°C. June is usually the warmest month (average high 31°C), January the coldest (average low 22°C), and September the wettest (about 160 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	28.0	22.1	57	10.8
February	28.0	22.1	63	10.8
March	28.5	22.1	63	11.1
April	29.2	22.7	87	11.7
May	30.4	23.9	83	11.9
June	31.3	24.9	60	12.1
July	30.9	25.3	83	12.0
August	31.0	25.3	101	11.4
September	30.8	25.0	160	10.7
October	30.4	24.5	124	10.2
November	29.2	23.7	134	9.8
December	28.3	22.9	64	10.6

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Interactive geography

See San Juan in context

01 · Overview

San Juan, in brief

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

02 · History

How San Juan took shape

This section is being expanded from verified sources. Current facts, weather, mapping, and official links remain available while editorial review continues.

03 · Visit

Visiting San Juan

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04 · Food & culture

Food and everyday culture in San Juan

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05 · Arts

Arts and cultural life in San Juan

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06 · Economy

Work and the economy in San Juan

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07 · Safety

Safety and practical guidance for San Juan

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08 · Questions

Questions about San Juan

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01 · Q&A

Where is San Juan located and what are its coordinates?

San Juan is situated in Puerto Rico at geographic coordinates 18.4663, -66.1057 with an elevation of 7 meters above sea level.

02 · Q&A

What is the population and time zone of San Juan?

San Juan has a recorded population of approximately 418,140 and observes the America/Puerto_Rico time zone (USD).

03 · Q&A

What languages and currency are used in San Juan?

Official and commonly spoken languages in San Juan include en-PR, es-PR, and the circulating currency is USD.

04 · Q&A

How can I check live conditions and daily updates for San Juan?

Today's Atlas provides continuous tracking for San Juan, featuring real-time weather conditions, daylight cycles, local geographic signals, and verified daily briefs.