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.
Today's St Martin sea temperature is 27.7 Â°C. Statistics for 20 Apr (1981â2005) â mean: 26.6 Â°C, range: 25.6 Â°C to 27.5 Â°C. Very warm air temperatures and very warm water(27 Â°C) too at St Martin, warm enough for wearing board shorts and a rash vest in the surf. Cloudy, but feeling very pleasant in and out of the water.