Rainy season

Puerto Rico: when is the rainy season?

The rainy season lasts in May and from September to November, the dry season from December to March. Best time to travel, dry and with good holiday weather: December – March.

Precipitation by destination

  • Bayamón

    Rainy: in May and from September to November

  • San Juan, Puerto Rico

    Rainy: in May and from September to November

Long-term precipitation per month, mm. Rainy months: well above the place's own average (at least 100 mm); dry months: half the average or less, or under 60 mm.

Puerto Rico: rainy season, quick answers

Puerto Rico: when is the rainy season?

The rainy season lasts in May and from September to November. On average, 131 mm fall in September, the wettest month.

Puerto Rico: when is the dry season?

The driest months are December – March, with 30 mm on average in February.

Puerto Rico: when is the best time to avoid the rain?

December – March: dry months with good holiday weather at most destinations.

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences