Search flights, hotels & activities for San Juan
Compare flights, hotels, cars, and activities in one place.
500+airlines & travel sites compared
21,000+routes tracked
€0booking fees from us
Freeprice drop alerts
Things to Do in San Juan in Summer
Real historical weather for San Juan in Summer: average highs of 17°C and lows of 4°C, with around 1mm of rain (averaged over the last 2 years). San Juan is in Argentina.
17°C
Average high
4°C
Average low
1mm
Typical rainfall
Real things to do in San Juan in Summer
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Discovering Puerto Rico: Lifestyle, Art, and Cultural Tour
★ 4.9(344 reviews)· 5 hrs
From €67
Small-Group El Yunque Waterslide & transportation w/ Photos
★ 4.9(3,693 reviews)· 6 hrs
From €39
Explore Old San Juan Walking Tour
★ 4.9(297 reviews)· 2 hrs
From €27
SJU Airport to San Juan area or return
★ 4.9(598 reviews)· 20 min
From €33
Old San Juan and El Morro Castle Walking Tour
★ 4.9(710 reviews)· 2h 30m
From €48
Old San Juan Walking Tour
★ 4.8(2,492 reviews)· 2h 15m
From €35
Jet Ski Tour through San Juan Bay (21 years old to rent)
★ 4.8(693 reviews)· 1h 20m
From €151
Historic Old San Juan Sunset Walking Tour
★ 4.8(710 reviews)· 2 hrs
From €35
Old San Juan Historical Walk, Shopping, and Dining w/ Transport
★ 4.7(483 reviews)· 5 hrs
From €31
San Juan Sunset Harbor Boat Ride
★ 4.6(1,443 reviews)· 1h 30m
From €97
Real listings from Viator, including live ratings and prices — clicking through takes you to book directly.
Other seasons in San Juan
Plan the rest of your trip
Continue planning your trip to San Juan
Same destination, real availability — no need to search again.
FAQs — San Juan in Summer
Based on real historical data (averaged over the last 2 years), expect highs around 17°C and lows around 4°C, with roughly 1mm of rain.