San Juan weather in November

Averages from 2021–2025 (150 days of record).

Average high: 85°F
Average low: 76°F
Rainy days: ~18 per month
Total precipitation: 4.3 in
Warmest recorded: 91°F
Coldest recorded: 68°F

Expect November days in San Juan to top out around 85°F and cool to about 76°F overnight, with roughly 18 days of measurable rain across the month. In recent years November has ranged from 68°F to 91°F.

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Current San Juan forecast → · Historical data by Open-Meteo (ERA5).