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.
The average water temperature experiences some seasonal variation over the course of the year. The time of year with warmer water lasts for 2.4 months, from August 10 to October 21, with an average temperature above 84Â°F. The day of the year with the warmest water is September 13, with an average temperature of 85Â°F. The time of year with cooler water lasts for 3.3 months, from December 21 to March 30, with an average temperature below 81Â°F. The day of the year with the coolest water is January 31, with an average temperature of 80Â°F.