Myrtle Beach weather in May: Myrtle Beach, South Carolina: normal highs, lows, rain and records for May
Myrtle Beach in May has a normal high of 79°F and a normal low of 62°F, a daily mean of 70°F, rising from 76°F on the 1st to 82°F by the 31st. Measurable precipitation falls on 10 days in a normal May, 2.96 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 17°C, 75 mm of precipitation in May.
- NOAA stationNorth Myrtle Beach
- Station IDUSW00093718
- Location33.81°N 78.72°W
- Elevation32 ft (10 m)
- From the center12 miles
- Population40,535
- Jan 56° 37°
- Feb 58° 40°
- Mar 65° 45°
- Apr 72° 53°
- May 79° 62°
- Jun 85° 70°
- Jul 88° 74°
- Aug 87° 73°
- Sep 83° 68°
- Oct 76° 56°
- Nov 66° 46°
- Dec 59° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Myrtle Beach in May?
The normal high is 79°F and the normal low 62°F, for a daily mean of 70.4°F. May is 7.9°F warmer than April and 7.1°F cooler than June. May is the 5th warmest month of the year in Myrtle Beach and the 11th wettest. Across the month the normal high rises 6°F, from 76°F on May 1 to 82°F on May 31. From one year to the next May's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 68°F and 73°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 76°F | 58°F | 29% | 16% |
| May 8 | 77°F | 60°F | 29% | 17% |
| May 15 | 79°F | 62°F | 30% | 17% |
| May 22 | 80°F | 64°F | 32% | 18% |
| May 31 | 82°F | 66°F | 34% | 20% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 76°F | 58°F | 29% | 16% | 13 h 30 min |
| May 2 | 76°F | 58°F | 29% | 16% | 13 h 30 min |
| May 3 | 76°F | 58°F | 29% | 16% | 13 h 30 min |
| May 4 | 76°F | 59°F | 29% | 16% | 13 h 40 min |
| May 5 | 77°F | 59°F | 29% | 16% | 13 h 40 min |
| May 6 | 77°F | 59°F | 29% | 16% | 13 h 40 min |
| May 7 | 77°F | 60°F | 29% | 17% | 13 h 40 min |
| May 8 | 77°F | 60°F | 29% | 17% | 13 h 40 min |
| May 9 | 77°F | 60°F | 29% | 17% | 13 h 40 min |
| May 10 | 78°F | 60°F | 29% | 17% | 13 h 50 min |
| May 11 | 78°F | 61°F | 29% | 17% | 13 h 50 min |
| May 12 | 78°F | 61°F | 30% | 17% | 13 h 50 min |
| May 13 | 78°F | 61°F | 30% | 17% | 13 h 50 min |
| May 14 | 78°F | 62°F | 30% | 17% | 13 h 50 min |
| May 15 | 79°F | 62°F | 30% | 17% | 13 h 50 min |
| May 16 | 79°F | 62°F | 31% | 18% | 13 h 50 min |
| May 17 | 79°F | 62°F | 31% | 18% | 14 h |
| May 18 | 79°F | 63°F | 31% | 18% | 14 h |
| May 19 | 79°F | 63°F | 31% | 18% | 14 h |
| May 20 | 80°F | 63°F | 32% | 18% | 14 h |
| May 21 | 80°F | 64°F | 32% | 18% | 14 h |
| May 22 | 80°F | 64°F | 32% | 18% | 14 h |
| May 23 | 80°F | 64°F | 32% | 19% | 14 h |
| May 24 | 80°F | 64°F | 32% | 19% | 14 h 10 min |
| May 25 | 81°F | 65°F | 33% | 19% | 14 h 10 min |
| May 26 | 81°F | 65°F | 33% | 19% | 14 h 10 min |
| May 27 | 81°F | 65°F | 33% | 19% | 14 h 10 min |
| May 28 | 81°F | 66°F | 34% | 19% | 14 h 10 min |
| May 29 | 81°F | 66°F | 34% | 20% | 14 h 10 min |
| May 30 | 82°F | 66°F | 34% | 20% | 14 h 10 min |
| May 31 | 82°F | 66°F | 34% | 20% | 14 h 10 min |
- Normal high
- 79°FMay average
- Normal low
- 62°FMay average
- Precipitation
- 2.96 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 30 min to 14 h 10 minMay 1 to May 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 15
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093718; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Myrtle Beach in May?
On a given May day the chance of 0.01 inch or more is 31% on average, highest around May 31 (34%). In all, 2.96 in falls on 10 days of a normal May, 1 of them with an inch or more.
In a normal May in Myrtle Beach, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093718.
What are the records for May in Myrtle Beach?
The warmest May temperature on Myrtle Beach's official record (since 1931) is 99°F, on May 29, 2019; the coldest is 36°F, on May 2, 1963. The wettest May brought 7.95 in (1992).
The May mean against the 1991-2020 normal of 70.4°F: 2021 69.3°F (−1.1), 2022 72.6°F (+2.2), 2023 68.2°F (−2.2), 2024 73.1°F (+2.7), 2025 72.7°F (+2.3), 2026 70.4°F (at normal). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.3°F | −1.1°F | 1.42 in |
| 2022 | 72.6°F | +2.2°F | 1.72 in |
| 2023 | 68.2°F | −2.2°F | 3.11 in |
| 2024 | 73.1°F | +2.7°F | 4.70 in |
| 2025 | 72.7°F | +2.3°F | 4.77 in |
| 2026 | 70.4°F | at normal | 1.21 in |
Source: records: ACIS, NWS threaded record CREthr; recent months: ACIS, station USW00093718. Records and recent months use complete months only.
How does May in Myrtle Beach compare across South Carolina?
Across the 73 places PlainClimate covers in South Carolina, May normal highs run from 70°F in Caesars Head to 86°F in Hampton; Myrtle Beach's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Myrtle Beach in April72°F by day, 53°F at night
- Myrtle Beach in June85°F by day, 70°F at night
- Myrtle Beach through the yearEvery month, frost dates, records and recent years
- South Carolina in MayThe statewide normal and the warmest and coolest places
- Hampton: South Carolina's warmest Maynormal high 86°F