San Juan

What is the climate like in San Juan?

The best time to visit San Juan is typically January – March, with trip comfort peaking in March (7.2/10). San Juan is warmest in May, when daily highs average 74°F (23°C), and coolest in February, when lows fall to about 58°F (14°C). The wettest month is typically October and the driest is March; the year sees roughly 120 in (3040 mm) of precipitation.

• Best time to visitJanuary – March — comfort peaks in March (7.2/10)
• Warmest monthMay — average high 74°F (23°C)
• Coolest monthFebruary — average low 58°F (14°C)
• Wettest monthOctober (20 in (514 mm))
• Driest monthMarch (2.2 in (55 mm))
• Annual precipitation120 in (3040 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromJuan Santamaria Intl, 15 km away (1973-2025)