SeasonMapHilton Head Island weather in April
United States
April in Hilton Head Island: warm, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Hilton Head Island · #313 of 1383 destinations to visit in April · comfort 86/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hilton Head Island in April
Notes from nearby Savannah (36 km away)
Hilton Head Island doesn't have its own notes for April yet — these are about Savannah, close enough to share the season.
Savannah's forum calls late March into April genuinely beautiful — warm, short-sleeve weather most days, with the occasional light, quick shower rather than a washed-out day. Regulars compare the feel to mid-October further north, and note the city gets noticeably busier as word gets around.
Other months in Hilton Head Island
Hilton Head's forum calls late May the sweet spot — warm enough for the beach and pool, genuinely rare to get as hot as July or August, roughly one day in four or five bringing rain, usually late afternoon or evening. Regulars note the ocean is swimmable but not warm, and that May stays noticeably quieter than the June-through-August rush since most schools are still in session.
Add your own note from Hilton Head Island's card on the map.
Hilton Head Island climate normals — April
| Daytime high | 24°C / 75°F | 🌤 warm |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 24°C / 75°F | |
| Sea temperature | 21°C / 70°F | 🌊 fresh |
| Rainfall | 84 mm / 3.3 in | 🌧 rainy |
| Rainy days | 6 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 14°C / 56°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 13 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Hilton Head Island in April
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyRBC Heritage(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Hilton Head Island's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherHilton Head Island's best weather comes in April, May and October — separate windows, not one continuous season.
April includes RBC Heritage.
Best weatherFair weatherToughest weather
What's on in Hilton Head Island in April
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
RBC Heritage
13–19 AprMajor festivalCrowdedBook earlyThe PGA Tour's stop the week after the Masters, played at Harbour Town for the plaid jacket. Rentals go to week minimums and the two-lane bridge onto the island backs up from Thursday. Source ↗
Nearby, and something's on
Within 300 km of Hilton Head Island — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Hilton Head Island?
Hilton Head Island in April — FAQ
- Is April a good time to visit Hilton Head Island?
- April in Hilton Head Island: warm, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Hilton Head Island on SeasonMap's comfort score (86/100).
- What is the weather like in Hilton Head Island in April?
- In April, Hilton Head Island averages a daily high of 24°C and a low of 15.6°C, with about 83.8 mm of rain over roughly 5.9 rainy days.
- What is the air quality in Hilton Head Island in April?
- Hilton Head Island has a mean US Air Quality Index of about 47 in April.
Other months in Hilton Head Island
Compare Hilton Head Island in April
Warmer or cooler than Hilton Head Island in April
Similar destinations in North America — April
Within 300 km: Savannah's Azaleas and spring bloom around 10 Mar – 15 Apr, and Charleston's Azalea and garden season around 10 Mar – 20 Apr.