Weather StoryAlmanac, microseasons, and the day's weather story.

Myrtle Beach, South Carolina Weather

Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →

Myrtle Beach weather forecast — hour by hour, 7-day outlook, NOAA radar

Myrtle Beach, SC
Monday, June 15 at 5:37 AM
74
°
Overcast
Feels like
78°
Humidity
90%
Wind
10 mph
Sunrise
2:04 AM
Sunset
4:27 PM
Myrtle Beach, SC
Hour by hour · 24h
24-Hour ForecastMyrtle Beach, SC: 24-hour forecast. Temperatures range from 72 to 87 degrees Fahrenheit.
L 72°H 87°
Myrtle Beach, SC
7-day forecast
  1. Today
    Jun 15
    Overcast
    —
    —
    87°74°—
  2. Tuesday
    Jun 16
    Overcast
    11%
    —
    82°70°-5°
  3. Wednesday
    Jun 17
    Light Drizzle
    45%
    —
    86°72°+4°
  4. Thursday
    Jun 18
    Showers
    15%
    0.18″
    97°75°+11°
  5. Friday
    Jun 19
    Drizzle
    56%
    0.03″
    90°73°-7°
  6. Saturday
    Jun 20
    Light Drizzle
    56%
    —
    86°71°-4°
  7. Sunday
    Jun 21
    Overcast
    —
    —
    88°70°+2°
Myrtle Beach, SC
Next 24 hours · Mild now
HOT 90°68°79°90°6a12p6p12anow 74°high 87°low 72°
Myrtle Beach, SC
Anemometer · 24h winds · from true
NESW
From · True
SW
230° · veering 39°
Direction
SW
230°
Sustained
10
mph
Gust
21
mph
Peak 24h
30
avg 9
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 9 · pk 30 @ 3:00a
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 247SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 39° from the sw.
Myrtle Beach, SC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1009.3
+0.4 mb in 3h · steady · 29.80 inHg
Now
1009.3
mb
3h
+0.4
mb
12h
-0.2
mb
24h
-1.9
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1009–1013
1000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1012.81008.71009.5
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Myrtle Beach, SC
Air quality
49
AQI
Good
↓-20 in 6h

AQI 49 (Good), driven by PM2.5. AQI down 20 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.4 µg/m³, PM10 at 10.6 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
9.4μg/m³
PM 10Good
11μg/m³
NO₂Good
2μg/m³
OzoneModerate
81μg/m³
UV IndexLow
0.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 38. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 38
UV peak
3.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 8

PM × Wind × Precip

PM2.5 at 9.4 µg/m³, PM10 at 10.6 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.89
Wind
breezy
Recent rain
0h in last 6h
Pattern
background

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100MONTUEWEDTHUFRISATSUNMON7-DAY PM2.5 TREND · μg/m³300
Myrtle Beach, SC
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
29.4mi
UNLIMITED
45 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
09:37 UTC · Myrtle Beach, SC · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
09:37 UTC · Myrtle Beach, SC · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Myrtle Beach, SC
Satellite · infrared · animated
Myrtle Beach, SC
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Myrtle Beach, SC
Almanac · Monday, June 15
A summer fog for fair, a winter fog for rain.
Civil dawn
5:36 AM
Sunrise
2:04 AM
Daylight
14h 23m
Sunset
4:27 PM
Civil dusk
8:57 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Myrtle Beach, SC
The moon
New Moon
0% illuminated
Moonrise
6:11 AM
Moonset
8:36 PM
In sign
♊︎ Gemini
Myrtle Beach, SC
Microseason
Jun 11–15

Sun climbs to its northern throne

insect
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Myrtle Beach at a glance

  • Today vs. normal: 7°F below the seasonal normal for this latitude
  • Last frost: March 9 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

15-Day Forecast — Myrtle Beach

  1. Mon87°73°8%
  2. Tue82°70°11%
  3. Wed86°72°45%
  4. Thu97°75°15%
  5. Fri90°73°56%
  6. Sat86°71°56%
  7. Sun88°70°5%
  8. Mon99°75°18%
  9. Tue82°74°34%
  10. Wed87°73°39%
  11. Thu83°72°35%
  12. Fri87°71°55%
  13. Sat93°73°53%
  14. Sun94°73°56%
  15. Mon96°76°35%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Myrtle Beach

Right now in the garden

Peak growing season

As of June 15, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Myrtle Beach

SPC has placed Myrtle Beach in the General Thunderstorms category for severe thunderstorms today.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3NONENo severe risk

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · June 11–15

Sun climbs to its northern throne

Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.

Day 166 of 365 · Wedge 33 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

Myrtle Beach peaks at about 80°F in July and bottoms near 45°F in January; September brings the heaviest rain (6.8 inches) and November the least (3.1 inches).

MonthMean tempPrecipRainy days
January45°3.4″11
February47°3.8″13
March53°3.7″12
April61°3.4″11
May69°3.8″13
June76°4.8″16
July80°6.6″22
August78°6.3″21
September74°6.8″23
October65°4.1″14
November54°3.1″10
December47°3.8″13

Regional context

In Myrtle Beach, NOAA NCEI 1991-2020 normals put January near 45°F and July near 80°F — a 35°F seasonal arc — with about 53.6 inches of precipitation over 179 rainy or snowy days.

Myrtle Beach's rain peaks in summer: September brings 6.8 inches over 23.0 thunderstorm-fed days, while November sees just 3.1 inches across 10.0 days under cooler, drier air. That puts Myrtle Beach in a summer-convective cohort with places like Carolina Forest, SC, Forestbrook, SC and Socastee, SC.

Once Myrtle Beach passes mid-March, overnight freezes fade and peas, lettuce, spinach, and radishes can be sown. Myrtle Beach's heat-lovers — tomatoes, peppers, squash — hold off until Myrtle Beach's frost risk clears, 10-14 days on. The season ends by mid-December in Myrtle Beach, once hard frosts set back in. A creek-bottom lot in Myrtle Beach can lag Myrtle Beach's last frost 7-10 days behind a south slope.

Similar climates: Carolina Forest, SC, Forestbrook, SC, Socastee, SC, Red Hill, SC, Surfside Beach, SC.

Naturalist notes

Late May brings the peak migration of painted buntings through coastal South Carolina, their brilliant plumage visible in scrubland edges.

Southern magnolia trees begin their flowering cycle in late May, releasing their distinctive fragrance across the coastal plain.

Frequently asked

When does it freeze in Myrtle Beach?
Myrtle Beach's last spring frost lands near mid-March, and in Myrtle Beach the first fall frost follows around mid-December.
What is the rainy season in Myrtle Beach?
Myrtle Beach sees its heaviest rain in September (around 6.8 inches), part of roughly 54 inches a year.
What is the warmest month in Myrtle Beach?
The warmest stretch in Myrtle Beach comes in July, around 80°F on average.
What is the coldest month in Myrtle Beach?
On average January is the chilliest month in Myrtle Beach, about 45°F.
When can I start a vegetable garden in Myrtle Beach?
Myrtle Beach's last frost (mid-March) cues hardy greens; in Myrtle Beach, hold heat-lovers two weeks past.
How many rainy days does Myrtle Beach get?
Myrtle Beach averages about 179 days with measurable rain or snow each year.
What hardiness zone is Myrtle Beach?
Myrtle Beach's USDA zone comes from its January mean (45°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Myrtle Beach?
Myrtle Beach's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Myrtle Beach?
See this week's day-by-day rain chances for Myrtle Beach in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Myrtle Beach?
Current conditions for Myrtle Beach and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Myrtle Beach forecast updated?
The Myrtle Beach forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Myrtle Beach?
Day length in Myrtle Beach peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Myrtle Beach?
The next few days in Myrtle Beach's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Myrtle Beach's humid subtropical climate in South Carolina pairs 45°F Januarys with 80°F Julys, 35°F apart across the seasons.

Yearly precipitation in Myrtle Beach totals around 54 inches, spread over about 179 days of rain or snow.

The 35°F gap between Myrtle Beach's summer and winter, at 33.7°N, shapes Myrtle Beach's frost calendar.

All cities in South Carolina →

Charleston, SC weather →

ZIP codes in Myrtle Beach

  • 29572
  • 29577
  • 29578

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.