PoolWindow

Pool season · South Carolina

Myrtle Beach Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

This is the one-page view of Myrtle Beach's pool year: both model windows, the estimated water-temperature curve, and today's live position on the season bar. The detailed checklists live on the opening and closing guides; this page is the calendar you check between them.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

Reading it takes ten seconds: 52 dots, one per week. Solid teal is Myrtle Beach's swim season; the hollow teal run before it (March 26 to April 16) is when to open; the hollow amber run after is when to close, with November 5 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.

The Myrtle Beach pool calendar

April 2open by
November 5close by
13180°F+ days
79°Fwater peak

Opening — target April 2

Open by April 2 — a two-week head start on the April 16 crossing keeps startup chemistry small and beats the local service rush.

Full opening guide

Closing — deadline November 5

The window opens October 26 once water leaves the algae zone; the model deadline is November 5, a week ahead of the November 13 freeze normal.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Myrtle Beach water runs about 44°F at its winter floor and 79°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

Estimated water temperature by month

Monthly averages of the site's water model run on Myrtle Beach's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.

Site-model seasonal water estimates for an unheated in-ground pool near Myrtle Beach — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
46°45°50°57°66°73°79°79°76°70°59°50°

Warmest water typically July–August (peaking near 79°F); heaters and covers shift any month up.

Data: NOAA 1991–2020 climate normals via Myrtle Beach (4.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.