Weather information for the Cumberland Island area is provided below. Average temperatures, climate details and current forecasts are included.
Climate
Monthly average temperatures and precipitation for St. Marys are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 62° | 64° | 71° | 77° | 82° | 87° | 88° | 88° | 85° | 78° | 71° | 65° |
| Avg. Low | 42° | 44° | 50° | 57° | 64° | 70° | 72° | 72° | 70° | 62° | 54° | 45° |
| Mean | 52° | 54° | 61° | 67° | 74° | 78° | 81° | 81° | 78° | 71° | 64° | 55° |
| Avg. Precip. | 3.4 in | 3.8 in | 3.9 in | 2.8 in | 3.3 in | 5.3 in | 6.3 in | 6.0 in | 6.9 in | 3.3 in | 3.3 in | 2.9 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
Current Weather
86.7°F (30.4°C) Clear Feels like 95 F (35 C) Wind Calm 0.00 in (0 mm) precipitation
