San Juan month by month
Plan your visit to San Juan by month. Compare weather, crowds, events, and prices across all twelve months with historical climate data.
- January
- High
- 28°C
- Low
- 22°C
- Rain
- 55 mm
The one thing you need to know about January in San Juan is Fiestas de la Calle San Sebastián. SanSe fills the cobblestone blocks around Calle San Sebastián in Viejo San Juan for 4…
- February
- High
- 28°C
- Low
- 22°C
- Rain
- 80 mm
February is the most expensive month to visit San Juan. Flights from JFK, Newark, and Boston fill weeks in advance, Condado hotel inventory thins out by early January, and the…
- March
- High
- 29°C
- Low
- 22°C
- Rain
- 55 mm
The single most useful fact about March in San Juan is that it ties with January for the driest month of the year, with rainfall near 55mm across roughly 15 days. Daytime highs…
- April
- High
- 29°C
- Low
- 23°C
- Rain
- 90 mm
April marks the tail end of San Juan's dry season. High-season visitors from the mainland start thinning out after Easter, but the weather hasn't yet turned into the heavy heat and…
- May
- High
- 30°C
- Low
- 24°C
- Rain
- 87 mm
May in San Juan marks the first full month of the off-season. Cruise-ship port calls drop after April, and the cobblestone streets of Viejo San Juan feel spacious in a way they…
- June
- High
- 31°C
- Low
- 25°C
- Rain
- 69 mm
June in San Juan means two things at once. Atlantic hurricane season officially opens on the first of the month, which thins the tourist crowds to their lowest levels since the…
- July
- High
- 30°C
- Low
- 26°C
- Rain
- 85 mm
July in San Juan means one thing above all else. You are inside Atlantic hurricane season, which runs from June 1 through November 30. The statistical peak hits in September and…
- August
- High
- 31°C
- Low
- 26°C
- Rain
- 104 mm
August in San Juan lands right in the peak window of the Atlantic hurricane season, which runs June through November with its most active stretch from mid-August into October. That…
- September
- High
- 31°C
- Low
- 25°C
- Rain
- 131 mm
September is the peak of Atlantic hurricane season, and San Juan sits squarely in its historical track. That is the single most important fact for anyone considering this month.…
- October
- High
- 31°C
- Low
- 25°C
- Rain
- 126 mm
October in San Juan sits squarely inside the Atlantic hurricane season, and there is no polite way around that fact. The National Hurricane Center's historical records show October…
- November
- High
- 29°C
- Low
- 24°C
- Rain
- 109 mm
November in San Juan falls at the tail of Atlantic hurricane season, which officially closes on November 30. Late-season storms rarely make landfall at Puerto Rico's latitude, but…
- December
- High
- 28°C
- Low
- 23°C
- Rain
- 69 mm
December in San Juan revolves around Navidades, Puerto Rico's extended Christmas season, which might be the longest in the Western Hemisphere. The festivities started in late…