Weather by month
Surfside Beach air temperature, wind, and rainfall by month
These air temperature, wind, and rainfall figures are multi-year averages of recorded observations, not a forecast.
The air temperature averages come from NOAA station 8661070 at Springmaid Pier. They cover 2022 through 2025 and use 35,017 readings.
The pier station can read cooler than an inland station on a summer afternoon.
Source: NOAA station 8661070 at Springmaid Pier (opens in a new tab), checked August 15, 2026.
Monthly averages
| Month | Average high | Average low | Average temperature |
|---|---|---|---|
| January | 54.6 °F | 41.0 °F | 47.6 °F |
| February | 58.9 °F | 46.5 °F | 52.3 °F |
| March | 64.6 °F | 53.0 °F | 58.5 °F |
| April | 69.7 °F | 59.9 °F | 64.9 °F |
| May | 76.2 °F | 67.2 °F | 71.8 °F |
| June | 81.8 °F | 73.2 °F | 77.8 °F |
| July | 84.7 °F | 77.3 °F | 81.3 °F |
| August | 83.5 °F | 75.2 °F | 79.7 °F |
| September | 79.7 °F | 70.2 °F | 75.4 °F |
| October | 71.9 °F | 59.9 °F | 66.2 °F |
| November | 65.7 °F | 53.2 °F | 59.6 °F |
| December | 57.1 °F | 44.2 °F | 50.5 °F |
Wind by month
NOAA station 8661070 records the wind in knots. This page converts the figures to miles per hour. A prevailing direction names where the wind blows from.
The figures use 32,830 readings across 1,373 covered days.
| Month | Average wind | Prevailing direction |
|---|---|---|
| January | 9.3 mph | Northwest |
| February | 9.6 mph | Southwest |
| March | 10.7 mph | Southwest |
| April | 11.3 mph | Southwest |
| May | 11.4 mph | South |
| June | 11.4 mph | Southwest |
| July | 11.6 mph | South |
| August | 10.4 mph | South |
| September | 10.6 mph | North |
| October | 9.7 mph | North |
| November | 9.3 mph | North |
| December | 8.7 mph | Northeast |
Rainfall by month
NOAA NCEI station USW00093718, North Myrtle Beach at Grand Strand Airport, records the rainfall. The station sits about 21 miles northeast of Surfside Beach. The averages cover 2022 through 2025 and use 1,461 daily records.
A wet day records at least one hundredth of an inch. The average covers 4 years, so one tropical system moves a monthly figure. August averages 10.42 inches against 3.31 inches in June for that reason.
Source: NOAA NCEI station USW00093718, North Myrtle Beach at Grand Strand Airport (opens in a new tab), checked August 18, 2026.
| Month | Average rainfall | Average wet days |
|---|---|---|
| January | 2.29 in | 8.8 days |
| February | 1.96 in | 7.3 days |
| March | 3.02 in | 9.8 days |
| April | 3.15 in | 7.0 days |
| May | 3.58 in | 9.8 days |
| June | 3.31 in | 9.3 days |
| July | 7.98 in | 13.5 days |
| August | 10.42 in | 12.8 days |
| September | 3.84 in | 9.0 days |
| October | 2.01 in | 4.5 days |
| November | 1.71 in | 7.3 days |
| December | 3.09 in | 8.0 days |