Best time to visit San Juan: December–April.
Want the full guide? Get a PDF with the seasonal breakdown for San Juan — free.
December–April is the best window to visit San Juan. Dry, less humid, and outside hurricane season.
June–November is the stretch to avoid if possible. Atlantic hurricane season, alongside higher heat and humidity.
Not necessarily — weather and crowd timing don't always match the cheapest airfare windows. Check our Best Time to Book Flights tool separately for pricing.
Usually yes — the weeks just before or after San Juan's best window often have nearly as good weather with noticeably fewer crowds and lower prices.