The coastal calendar month by month.
The National Seashore's Wednesday-to-Sunday lifeguard schedule is back after a 2025 staffing gap, while Assateague State Park keeps its familiar Memorial Day-to-Labor Day guard hours — here's how to time a swim on either side of the island.
Labor Day weekend is the beach year's final crowd spike, and the week after it is the quiet sweet spot — the mechanics of crowds, rates, lifeguard schedules, and water temperature around September 7, 2026.
Humpbacks feed on Stellwagen Bank from spring into fall with the summer months the most reliable — the seasons, the ports, and how a half-day trip actually runs.
From the Vineyard to the San Juans, the ferry calendar is the island calendar — when timetables expand, when vehicle reservations sell out, and how walk-on travel beats the summer queue.
Florida's Gulf red tide peaks from late summer into fall, blue-green algae favors hot freshwater-influenced months — what drives each, what the symptoms are, and the two official maps to check first.
Warm-month larvae outbreaks called sea lice, wind-blown Portuguese man o' war in the cooler months — the seasonal calendar of Florida's stinging things, and the prevention steps lifeguards actually recommend.