Overall, weather in the San Juans is milder with about twice as many sunny days and about half as much rain as Seattle area. This is because the San Juan Islands are part of a rain shadow that also includes part of Whidbey Island and the area around Sequim and Port Townsend on the mainland. Daytime temperatures in the 70's are common in summer and 40's in winter. Plan for a range of temperatures, but nothing very severe.
http://www.san-juan-island.com/sesnl.htm
Averages for San Juan in August. Puerto Rico island in the Caribbean enjoys year round heat thanks to its tropical climate. Its location to the east of the Dominican Republic and to the west of the Virgin Islands means it is a hugely popular getaway for travellers from all over the world. August in one of the hottest months in Puerto Rico with temperatures between 23 and 31 degrees celsius and is also one of the m...
http://www.holiday-weather.com/san_juan_/averages/august/
In the classic 1980s film, Back to the Future 2, Marty McFly and Dr. Emmet Brown used a car fitted with a time machine to travel 30 years in the future, arriving on Oct. 21, 2015.
http://www.accuweather.com/en/us/san-juan-island-wa/98250/weather-forecast/2623124
Some 450 islands dot the San Juan and Gulf Islands archipelago. Hundreds more lead north to Desolation Sound and Princess Louisa Inlet. These islands of the Salish Sea are shielded from ocean storms by 300 mile-long Vancouver island.
http://www.sanjuansailing.com/charters/island-weather.html
My favorite month is May. Tourism is light, the wildflowers are out, the weather is pleasant, the island is green and late May, early June is usually the most active time of year for Orca whales. The typical season for Orcas is from April through July.
http://www.san-juan-island.com/sesnl.htm
Personally, I love their sunset trips without all the whale watch and other boats all around. In business for close to 20 years, Outdoor Odysseys offers quality, hand crafted 1, 3 and 5 day tours in the premier Orca whale habitats off the west side of San Juan Island.
http://www.san-juan-island.com/sesnl.htm
As with most places some years are wetter and some drier, but overall the San Juan Islands receive about 1/2 the rain as Seattle and experience an average of 247 sunny days per year. Summer temperatures are generally in the low to mid 70s and winter temperatures in the high 30s or low 40s.
http://www.sanjuansailing.com/charters/island-weather.html
August in one of the hottest months in Puerto Rico with temperatures between 23 and 31 degrees celsius and is also one of the months that see the highest water temperatures at a toasty 29 degrees.
http://www.holiday-weather.com/san_juan_/averages/august/
Averages for San Juan in July. Puerto Rico is a popular holiday destination in the northeastern Caribbean which brings in an estimated five million tourists each year. July is one of the hottest months in Puerto Rico with temperatures ranging from 23 to 31 degrees celsius. Unfortunately, July is also hurricane season on the island and 6.9 inches of rainfall is expected over at least 19 days of the month. Visitors may even find that a heavy downpour occurs at least once on every day of their holiday.
http://www.holiday-weather.com/san_juan_/averages/july/
San Juan Island Weather. 6 – Day Forecast. Typical pacific north-west weather does not apply to the San Juan Islands! The weather in the San Juan Islands remains pleasantly mild all throughout the year. Summer is rarely above 80º. Winter brings average lows of 35º to 40 º. rarely freezing.
http://sanjuanisland.com/weather/
weather in the san juan islands in july
July is the hottest month in the San Juan islands. July is the hottest month in the San Juan Islands.