North Myrtle Beach weather in August

In August, North Myrtle Beach sees average daytime highs of 84°F and overnight lows near 76°F, with 6.7 in of rain across 17.1 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is North Myrtle Beach's 11th-clearest and 12th-windiest month. For the whole year in context, see North Myrtle Beach's year-round climate.

Daytime high
84°
2nd warmest
Overnight low
76°
11th coldest
Rainfall
6.7 in
17.1 wet days
Daylight
13 h 18 min
5:41 AM – 6:57 PM
Cloud cover
59%
11th clearest
Wind
8 mph
12th windiest
Solar energy
5.35 kWh/m²
Travel score
4.7
out of 10

North Myrtle Beach is city in Horry County, South Carolina, United States.

Density
352/km²
people per km²
Founded
1735

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 84°F through the month.

A typical August day in North Myrtle Beach reaches about 84°F in the afternoon and slips back to 76°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 88°F. Set against its neighbours, August runs on par with July and about 4°F warmer than September.

70°80°90°151015202531
Avg high (°F)Avg low (°F)
18477
28477
38476
48476
58476
68476
78476
88476
98476
108476
118476
128476
138476
148476
158476
168476
178476
188476
198476
208476
218476
228376
238375
248375
258375
268375
278375
288375
298375
308374
318374

How August really feels in North Myrtle Beach

Once humidity and wind are folded in, August averages 23 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
23
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

North Myrtle Beach weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan56° / 44°3.79.5104.0
Feb58° / 45°3.78.910.74.4
Mar63° / 51°4.08.911.75.8
Apr70° / 58°3.07.612.86.9
May76° / 66°3.19.413.77.1
Jun82° / 73°4.313.114.25.7
Jul85° / 76°5.516.6144.5
Aug84° / 76°6.717.113.34.7
Sep80° / 71°6.412.912.26.2
Oct73° / 62°4.07.911.17.3
Nov65° / 52°3.37.910.26.4
Dec59° / 47°4.19.49.84.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24654
34654
44654
54654
64753
74852
84852
94852
104852
114951
125050
134951
144951
154951
165050
174951
184951
195050
204951
214951
225050
235050
245050
255050
265050
275050
285050
295050
305149
315050

Chance of precipitation in August

Any precipitation

North Myrtle Beach gets around 6.7 in of rain over 17.1 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
157
257
357
456
556
656
756
856
956
1056
1156
1257
1357
1457
1558
1658
1758
1858
1957
2057
2156
2256
2355
2454
2553
2652
2751
2850
2949
3049
3148

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10184545
20184545
30294544
40294544
502104543
602104543
702104543
802104543
902114542
1002114542
1102114542
1202114542
1302114541
1402114641
1502114640
1602124739
1702124838
1802134936
1902135035
2002135233
2102145232
2203145231
2303145330
2403155428
2514155327
2614165326
2714175424
2815185323
2915185422
3015195520
3125205419

Wind in August

Winds average 8 mph in August, the calmest month.

Across August, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
309light breeze
319light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:30 AM to 5:52 AM, and sunset from 7:12 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:307:12
213.75:317:11
313.65:317:10
413.65:327:09
513.65:337:08
613.65:337:07
713.55:347:06
813.55:357:05
913.55:367:04
1013.55:367:03
1113.45:377:02
1213.45:387:01
1313.45:397:00
1413.35:396:59
1513.35:406:58
1613.35:416:57
1713.25:416:56
1813.25:426:55
1913.25:436:53
2013.15:446:52
2113.15:446:51
2213.15:456:50
2313.05:466:48
2413.05:476:47
2513.05:476:46
2612.95:486:45
2712.95:496:43
2812.95:496:42
2912.85:506:41
3012.85:516:39
3112.85:526:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.35 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.3 kWh/m² in May across the year — August's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in August

Hazard calendar for North Myrtle Beach

In seasonPeak

In August, North Myrtle Beach sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

North Myrtle Beach sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit North Myrtle Beach?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.7
Sightseeing
8th-best month of the year
5.9
Beach & pool
5th-best month of the year

August is a reasonable time to visit North Myrtle Beach for sightseeing.

What to pack for North Myrtle Beach in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, North Myrtle Beach sees daytime highs around 84°F and nights near 76°F. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near North Myrtle Beach in August

The nearest coast averages about 83°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 83°F and coldest in February near 59°F.

It's comfortable for a long swim from Apr 29 to Nov 14 — about 6.6 months when the water holds above 68°F.

60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb59Bracing
Mar61Cool
Apr65Cool
May72Refreshing
Jun79Warm
Jul82Warm
Aug83Tropical
Sep80Warm
Oct74Refreshing
Nov68Cool
Dec62Cool

UV index in North Myrtle Beach in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in North Myrtle Beach peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 14UV 9Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in North Myrtle Beach in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in North Myrtle Beach is worst in March — around 21 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodMar 1719 µg/m³Dec 146 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb12Good
Mar21Moderate
Apr12Moderate
May11Good
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep9Good
Oct6Good
Nov7Good
Dec6Good
Location & terrain

Where is North Myrtle Beach?

North Myrtle Beach sits at 33.8°N, 78.7°W, 7 ft above sea level, in United States. The nearest listed city is Myrtle Beach, 15 mi away.

Topography around North Myrtle Beach

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of North Myrtle Beach.

Within 2 miles, the terrain around North Myrtle Beach has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 16 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 138 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 230 ft.

The land around North Myrtle Beach is covered by water (49%) within 2 miles, water (48%) and trees (37%) within 10 miles, and trees (55%) and water (31%) within 50 miles.

2 miles
102 ft
10 miles
138 ft
50 miles
230 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Myrtle Beach 15 mi · Socastee 21 mi · Conway 21 mi · Leland 47 mi · Wilmington 51 mi · Lumberton 58 mi · Florence 67 mi · Laurinburg 80 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for North Myrtle Beach (33.816°, -78.68°, elevation 7 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).