Myrtle Beach weather by month
Measured at North Myrtle Beach/Grand Strand Arpt
Averages and records for each calendar month at North Myrtle Beach/Grand Strand Arpt, United States, from 1949 to 2026. The warmest month is July, averaging 31.0°C; the coolest is January at 13.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 13.9°C | 2.8°C | 27.2°C16 January 1950 | −10.5°C25 January 2014 | 33 / 33 |
| February | 15.2°C | 4.2°C | 27.2°C27 February 1951 | −9.3°C20 February 2015 | 33 / 33 |
| March | 18.5°C | 7.4°C | 31.1°C29 March 2012 | −6.1°C4 March 2009 | 33 / 33 |
| April | 22.4°C | 11.7°C | 33.3°C21 April 2002 | −2.2°C16 April 1950 | 33 / 33 |
| May | 26.3°C | 16.6°C | 37.2°C29 May 2019 | 5.6°C11 May 1954 | 32 / 33 |
| June | 29.7°C | 21.2°C | 40.0°C26 June 1952 | 9.4°C3 June 1953 | 33 / 34 |
| July | 31.0°C | 22.9°C | 38.3°C21 July 1952 | 12.2°C7 July 1951 | 34 / 34 |
| August | 30.4°C | 22.5°C | 40.0°C5 August 1954 | 12.2°C25 August 1952 | 34 / 34 |
| September | 28.4°C | 19.6°C | 35.0°C3 September 2010 | 7.8°C26 September 1950 | 33 / 34 |
| October | 24.3°C | 13.4°C | 33.9°C5 October 1951 | −3.9°C30 October 1952 | 33 / 33 |
| November | 19.2°C | 7.1°C | 28.3°C1 November 1950 | −8.9°C26 November 1950 | 33 / 33 |
| December | 15.2°C | 4.0°C | 26.7°C9 December 1951 | −9.4°C8 December 1954 | 33 / 33 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 32 to 34 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.