1 U.S. Citizens who have applied and been approved for the TSA PreCheckÂ® Application Program. 2  Any active duty, U.S. Armed Forces service members in the Air Force, Army, Coast Guard, Marine Corps, and Navy, as well as the Reserves and National Guard, with a DOD ID (Effective for travel on December 20th and after).SA PreCheck expedited screening lanes continue to grow and are currently available in the following Southwest Airlines airport locations. For a complete list of all participation airports, visit http://www.tsa.gov.
Climate & Weather â When to visit St. John. It is warm year-round on St. John. The average max temp. is 84-89Â°F, with August being the hottest month and Dec-Jan the coldest. The average min temp is 73Â°F-80Â°F. You will rarely need anything long, except for supermarkets, where it is freezing or to protect yourself from sunburn or bug bites. The average water temperature is 82Â°F.
T he average temperature of the crystal clear waters surrounding St Maarten/St Martin ranges from 78-80F in the winter, and 82-84F in the summer. T he winds blow a fairly regular 15 knots from mid-November to mid-April.In the summer, thermal effects and tropical waves can bring a bit stronger drafts, and rain showers are to be expected. They are usually brief, but intense. here is no specific rainy season on the island, but one does exist for hurricanes: between July through November with the highest likelyhood in early September. Marine weather information is available on a day-to-day basis at every marina's harbormaster's office.