Temperature
Hot by day, warm at night.
89°Ftypical Aug high
San Juan
Puerto Rico · Caribbean
San Juan is most comfortable around February and March, its relatively drier stretch in a hot, humid climate.
Best time to go
12 mo · Typical year
Temperature range
71°F to 89°F
Rain
13 days/mo
Sunshine
11.3 h/day
Humidity feel
Humid year-round
When to visit
Month-by-month fit
Precipitation
Recurring showers across the month.
52%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
11.7 hAug sunshine
Heat & humidity by month
Warm days, with some hot afternoons and occasional humid spells.
Very humidAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
84°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
43%Aug clear sky
ClearCloud cover
Similar
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Want a side-by-side climate view? Compare San Juan with Havana.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology