Typical September highs at Altona Lagoon Beach reach about 87°F, with reliable beach weather most of the year. Altona Lagoon Beach is located in Saint Croix, U.S. Virgin Islands.
Saint Croix, U.S. Virgin Islands · live parking & conditions · updated June 19, 2026
In a typical year September is the warmest month here, with highs near 87°F, and it's reliably beach weather most of the year. Tap Altona Lagoon Beach on the map for live surf, wind, water temperature, UV and tide times.
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