March is the driest month of the year in the United States Virgin Islands with only 1.4" (36mm) of rain. The average temperatures are in the comfortable 73°F (22.8°C) to 86°F (30°C) range, and the heat index is bearable due to the moderate humidity. Early morning is the best time to visit the beaches and enjoy the mild waters lapping towards the shore. The sun shines at least for 8 hours every day, but there are many cool places to visit, such as the mangrove lagoon in Saint Thomas. Mangrove trees offer pleasant shade from the bright sunlight. The lagoon hosts a diverse species of birds and fish in its soothing waters and even attracts night kayaking tours. Lightweight clothes, along with a scarf for evening breezes, adds to the comfort. Expect occasional showers in the afternoon. The conditions are pleasant in the United States Virgin Islands in March.