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San Juan Breaks Heat Record, Ties Maximum Temperature

Published Jul 18, 2026, 3:58 PM ASTvia Primera Hora

Why this matters: For Puerto Rico, this heat record and prolonged hot conditions pose a significant risk to public health, especially for vulnerable populations such as the elderly and those with pre-existing medical conditions.

San Juan broke its heat barrier and tied the record for maximum temperature, reaching 91 degrees Fahrenheit on Friday, according to the National Meteorological Service (SNM). This temperature matches the previous record of 91 °F, set in the years 1970, 1981, 2002, 2005, and 2024. The SNM highlighted this data as part of its monitoring of the hot conditions affecting Puerto Rico in recent days, due to a combination of high temperatures, humidity, and Saharan dust that can increase the thermal sensation.

Authorities recommend that citizens stay hydrated, limit prolonged sun exposure, and take extra precautions, especially vulnerable individuals. This record in San Juan adds to a season of high temperatures on the island, where heat remains a key factor to watch during the summer.

In context (787daily, from public data)

  • San Juan

    336,160Census estimate, 2020–20241521Founded47.9 sq mi (124 km²)Area
SourcePrimera Hora

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