Search flights, hotels & activities for San Juan Islands
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 Islands in July
Real historical weather for San Juan Islands in July: average highs of 22°C and lows of 13°C, with around 10mm of rain (averaged over the last 3 years). San Juan Islands is in United States.
22°C
Average high
13°C
Average low
10mm
Typical rainfall
Real things to do in San Juan Islands in July
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
3-Hour Sea Kayak Tour in the San Juan Islands
★ 4.9(91 reviews)· 3 hrs
From €121
Around the Island Tour From San Juan
★ 4.9(336 reviews)· 10 hrs
From €132
Private Transfer-TO or FROM: SJUAirport,Cruise,Hotels Puerto Rico
★ 4.9(311 reviews)· 2h 10m
From €30
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
San Juan Guided Turtle Snorkel Tour and Complimentary Videos
★ 4.9(17,474 reviews)· 1h 30m
From €40
Whale Watching from Friday Harbor
★ 4.8(822 reviews)· 4 hrs
From €121
Jet Ski Tour through San Juan Bay (21 years old to rent)
★ 4.8(693 reviews)· 1h 20m
From €151
Bioluminescence Kayak Tour in the San Juan Islands
★ 4.7(34 reviews)· 3 hrs
From €147
Transportation in San Juan, Isla verde, Condado, Hotels, Cruises & Airbnb's SJU
★ 4.7(59 reviews)· 20 min
From €12
Real listings from Viator, including live ratings and prices — clicking through takes you to book directly.
Plan the rest of your trip
Continue planning your trip to San Juan Islands
Same destination, real availability — no need to search again.
FAQs — San Juan Islands in July
Based on real historical data (averaged over the last 3 years), expect highs around 22°C and lows around 13°C, with roughly 10mm of rain.