Entry, Exit & Visa Requirements. Generally, all U.S. citizens are required to present a valid U.S. passport when traveling to The Bahamas, as well as proof of anticipated departure from The Bahamas. Those traveling to The Bahamas on a cruise may use another Western Hemisphere Travel Initiative (WHTI) compliant document. However, we strongly recommend visitors obtain a passport before travel in case of an unforeseen emergency that requires a cruise passenger to disembark and return by air.
Best Times to Visit San Antonio. The best time to visit San Antonio is from November to April, when the weather is comfortable and the hotel rates are lower. Summer sees the largest influx of tourists from in- and out-of-state.
Guide to San Antonio weather in March. The average maximum daytime temperature in San Antonio in March is a warm 23Â°C (73Â°F). The average night-time temperature is usually a cool 10Â°C (50Â°F). There are usually 7 hours of bright sunshine each day, which represents 56% of the 12 hours of daylight.