Weather by month
Surfside Beach weather by month
July is the warmest month, with an average high of 84.7 °F. January is the coolest month, with an average low of 41.0 °F. August is the wettest month, with average rainfall of 10.42 inches. Monthly averages cover air temperature, wind, and rainfall. The figures are averages of recorded observations from 2022 through 2025 for air temperatures and 2022 through 2025 for rainfall, 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.
Surfside Beach weather forecast
Check the National Weather Service seven-day forecast for Surfside Beach (opens in a new tab).
Air temperature by month
| 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.
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 |