South Carolina runs on a real geographic split most timing advice never mentions: Ruby-throated Hummingbird arrives across the whole state every April, but only along the coast — in Charleston and Beaufort — does it genuinely never leave at all. Inland, it's a real, honest migrant, gone by fall like almost everywhere else. Nine more species turn up as documented rarities, one of them (Black-chinned Hummingbird) with a real, recurring winter pattern of its own. Here's how the year actually unfolds, region by region.

The short answer: Ruby-throated arrives statewide in early April and builds to a statewide peak the first week of September. From there, the state splits in two: interior counties (Upstate and the Midlands) empty out by mid-to-late October, a clean, ordinary migrant pattern. Along the coast — Charleston, Beaufort, and largely Horry too — it never actually disappears, dipping to a low winter baseline instead of departing. Rufous Hummingbird is a real, annual winter visitor statewide, strongest November through March.

South Carolina's Hummingbird Season at a Glance

Before the region-by-region detail below, here's the whole season in one picture.

How often Ruby-throated Hummingbird shows up on eBird checklists, week by week, statewide, 2016–2025. The statewide shape never truly hits zero — a real signal from the coastal counties folded into the average, not a rounding artifact. Nine more species have been documented in South Carolina. Black-chinned Hummingbird has a real, if thin, recurring winter pattern of its own — see its own chart just below, shared with Rufous. Seven more are true rarities, most with only one to three total accepted records ever: Allen's, Broad-tailed, Broad-billed, Calliope, Buff-bellied, Anna's, and Blue-throated Mountain-gem (this last one on a lower-confidence "Provisional" status — written documentation only, no photo or specimen). Full details on each are in the Sources section below.

Rufous and Black-chinned are both real winter specialists here, and — genuinely unusually — close enough in scale to share one honest chart without either one crushing the other.

Rufous Hummingbird — a real, annual winter visitor, not on South Carolina's official review list at all, unlike every other western hummingbird here — and Black-chinned Hummingbird, technically a Rare-tier species by committee classification, but with genuine multi-year recurring evidence behind it (Christmas Bird Count records from two separate winters, Hilton Pond Center banding records). Both peak at the same 0.2% of checklists and track closely together, strongest November through March. Source: same eBird pull as above.

Arrival and departure windows by region, based on eBird checklist data (Cornell Lab of Ornithology), 2016–2025.

March: The Quiet Tail End

March is the closest South Carolina gets to a true off-season, though even here it's not quite empty. Ruby-throated sits at its statewide low, still weeks from its real arrival — but the coast tells a different story, where the population that never left continues at its usual quiet baseline. Rufous and Black-chinned are both fading out too, their winter presence tapering toward the lowest point of their year. By the final week of the month, the first real hint of the spring wave starts to show statewide.

April: The Whole State Arrives

April is when South Carolina's real spring wave lands. York and Richland show their sustained climb first, in the opening week; Greenville follows about a week behind. Along the coast, arriving birds don't start a season from zero — they join the population that's been there all along, which is why coastal numbers climb faster here than almost anywhere else in the state this month. By month's end, Rufous and Black-chinned have both faded out completely; whatever's visiting a feeder in late April is Ruby-throated.

May: Ruby-throated Has the State to Itself

By May, arrival is complete and territories are settling in everywhere. This is genuinely a single-species month for South Carolina — both winter specialists have dropped to true zero statewide, not just rare, so whatever's at a feeder in May is Ruby-throated, full stop.

June: Nesting Season

June brings a real, small dip in the data before the climb resumes — the same pattern that shows up almost everywhere Ruby-throated breeds, as incubating and brooding females visit feeders less often. It's not a sign birds have left; nesting season simply looks quieter by nature. Rufous and Black-chinned remain completely absent.

July: Deep Summer, One Species Only

Like May, July belongs to Ruby-throated alone — the two winter specialists are still completely absent and won't return until fall. What July actually brings is heat, climbing steadily through the month, and with it the same pest pressure every Southeastern state deals with this time of year.

August: Fueling Up

Ruby-throated is deep into its pre-migration fueling now, climbing steadily toward September's real peak. The two winter specialists are still essentially absent this month — a single data point that shows up for each sits right at eBird's reporting floor, not a genuine early arrival, so don't expect real Rufous or Black-chinned activity before their real season gets underway in November.

September: The Peak, Then the Turn

September opens at the year's real peak — 35% of checklists in the first week alone — then turns fast. By the last week of the month, statewide numbers have already dropped by nearly a quarter from where they started.

October: The State Splits in Two

The decline that started in September keeps going fast — statewide numbers drop by nearly 90% across the month alone. But how that decline actually plays out depends entirely on where you are. Inland, it's a clean, ordinary departure. On the coast, it's not a departure at all, just a real dip toward the same low baseline the population holds all winter.

November: Ruby-throated Gone Inland, Rufous Begins

By November, the split from October has settled into its winter shape — gone completely inland, present at a steady low baseline on the coast. Meanwhile, Rufous's real winter build gets underway statewide, still small in number but genuinely climbing week over week rather than the noise seen back in August.

December: Building Toward the Real Peak

December is genuinely a build month, not the peak itself, however it might look on the way up. Rufous climbs steadily across the month, and Black-chinned's own winter pattern builds right alongside it — both still short of where they'll actually crest, which doesn't happen until January.

January: The Real Peak

January, not December, is when South Carolina's two winter specialists actually crest. Rufous peaks in the second week of the month; Black-chinned follows right behind it in the third — both cresting at right around 0.2% of checklists before beginning their own slow decline toward spring. Along the coast, Ruby-throated continues exactly as it has all winter, unaffected by either of the other two species' timing.

February: The Closing Chapter

By February, both winter specialists are past their peak and declining again — Black-chinned faster than Rufous, already down to a bare trace by month's end. This is functionally the closing chapter of the winter story, with March's true quiet stretch just ahead.

Frequently Asked Questions

When do hummingbirds arrive in South Carolina?

Early April almost everywhere — York and Richland lead by the first week, Greenville about a week behind. Along the coast, "arrival" means new birds joining a population that's already there.

When do hummingbirds leave South Carolina?

Most of the state is quiet by late October. The real exception is the coast — Charleston, Beaufort, and largely Horry — where Ruby-throated Hummingbird never actually leaves, dipping to a low winter baseline instead.

Are there hummingbirds in South Carolina in the winter?

Yes, in two different ways. Along the immediate coast, it's the same Ruby-throated Hummingbird that never left. Statewide, Rufous Hummingbird is a genuine, annual winter visitor — real enough that South Carolina's own bird records committee doesn't require documentation for it, unlike every other western hummingbird species that shows up here.

Why do hummingbirds stay all winter in Charleston and Beaufort but not the rest of the state?

It's a real, documented pattern, not a fluke — Audubon Christmas Bird Count data shows a broad, recurring, multi-year, multi-county presence along the coast (48 Ruby-throated across 7 counts in one recent year alone), while inland counties show a genuine, sustained multi-week absence every winter. The likely explanation is coastal habitat and climate — milder temperatures and more consistent winter nectar sources near the immediate coast — though the exact mechanism isn't something eBird data alone can confirm.

Should I keep a feeder up through a South Carolina winter?

Yes, almost anywhere in the state — genuinely essential if you're near the coast, and a good idea at low odds everywhere else, since Rufous shows up statewide. Keep nectar fresh through cold snaps rather than assuming an empty-looking feeder in January means nothing's coming.

Why We Built This Calendar

Pop's Birding has been helping hummingbird lovers for three generations. One of the questions our customers ask most often is "When do hummingbirds arrive and leave my state?" — we built this calendar to give a direct, sourced answer, not a generic one. Most timing advice online gives a single date for an entire state, which is exactly wrong for South Carolina: a coastal county and an Upstate county don't share a season, and averaging them together would hide the state's single most interesting finding entirely. We wanted a calendar that tells you the truth for where you actually live, not an average that's wrong for a third of the state.

How We Built This Calendar

We cross-check every rare species against the South Carolina Bird Records Committee's own review-list status rather than eBird frequency alone — a species left off that list entirely, the way Rufous is, is the committee's own signal of regular, expected occurrence; a species requiring documentation for every single report, the way Black-chinned and seven others are, is a genuine rarity even when its raw eBird numbers look larger. The real finding from this build: South Carolina's Ruby-throated Hummingbird population isn't one statewide story — it's two. Six of the nine counties tracked show a clean, ordinary migrant pattern, arriving in April and gone by fall. Three coastal counties never show a real absence at all, confirmed independently through Audubon's own Christmas Bird Count records across multiple winters, not just eBird checklist frequency. That distinction only shows up once each region's own weekly shape is checked directly — a single statewide percentage average hides it completely.

Sources

• South Carolina Bird Records Committee (SCBRC), via the Carolina Bird Club's official checklist and review list of South Carolina birds. Source for South Carolina's full 10-species list, review-list status for each rare visitor, and Rufous Hummingbird's notable absence from that list.
• Audubon Christmas Bird Count data (123rd, 124th, and 125th counts). Source for documented coastal winter Ruby-throated presence across multiple counties and multiple years.
• Hilton Pond Center (Bill Hilton Jr.), "This Week at Hilton Pond," and The Chat (Carolina Bird Club journal). Source for individually dated accepted records behind South Carolina's rarer species, including banded specimens.
• eBird bar chart data (Cornell Lab of Ornithology), 2016–2025, pulled August 2026.