Charleston vs Myrtle Beach: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 135 km apart · long-term climate normals (NASA POWER, 2001–2020)
Charleston is the sunnier overall: about 2,712 hours of sunshine a year to Myrtle Beach's 2,556. Charleston has the higher Sunshine Score in 6 of 12 months; the other 6 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Charleston | Myrtle Beach | |
|---|---|---|
| Sunshine hours / year | 2,712 | 2,556 |
| Sunniest month | November (82/100) | April (79/100) |
| Nov–Feb average score | 57/100 | 52/100 |
| Jun–Aug average score | 68/100 | 66/100 |
| Rain / year | 1,245 mm | 1,450 mm |
| Peak midday UV | 9 (very high) | 9 (very high) |
Charleston vs Myrtle Beach month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Charleston | Myrtle Beach | Charleston | Myrtle Beach | Charleston | Myrtle Beach | |
| January | 42 | 41 | 14° | 14° | 61 | 69 |
| February | 53 | 45 | 16° | 15° | 84 | 94 |
| March | 80 | 57 | 20° | 17° | 84 | 95 |
| April | 80 | 79 | 24° | 21° | 82 | 83 |
| May | 78 | 74 | 28° | 24° | 92 | 107 |
| June | 69 | 67 | 31° | 28° | 140 | 149 |
| July | 68 | 66 | 32° | 29° | 147 | 176 |
| August | 67 | 66 | 31° | 29° | 171 | 189 |
| September | 73 | 66 | 29° | 27° | 119 | 172 |
| October | 76 | 72 | 25° | 23° | 105 | 118 |
| November | 82 | 71 | 20° | 19° | 69 | 92 |
| December | 52 | 50 | 16° | 16° | 91 | 106 |
The sunnier month by month: Jan even · Feb Charleston · Mar Charleston · Apr even · May Charleston · Jun even · Jul even · Aug even · Sep Charleston · Oct Charleston · Nov Charleston · Dec even.
When to pick which
- November–February: Charleston (average score 57/100 vs 52). Daytime highs are similar (17°C vs 16°C). See the winter sun ranking.
- March–May: Charleston (average score 79/100 vs 70). Charleston is the warmer, around 24°C daytime highs vs 21°C.
- June–August: too close to call — Charleston averages 68/100, Myrtle Beach 66/100. Charleston is the warmer, around 31°C daytime highs vs 29°C.
- September–October: Charleston (average score 75/100 vs 69). Charleston is the warmer, around 27°C daytime highs vs 25°C.
Full month-by-month guides: Charleston weather by month · Myrtle Beach weather by month · Best time to visit United States.
More comparisons: Charleston vs Columbia · Charleston vs Savannah · Myrtle Beach vs Fayetteville · Myrtle Beach vs Wilmington · all head-to-heads