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. | ||||||||||||
Overnight
Partly Cloudy
Friday
Sunny
Friday Night
Mostly Clear
Saturday
Sunny then Slight Chance Showers And Thunderstorms
Saturday Night
Slight Chance Showers And Thunderstorms then Partly Cloudy
Sunday
Partly Sunny then Chance Showers And Thunderstorms
Detailed Forecast |
|
|---|---|
| Overnight | Partly cloudy, with a low around 62. Southwest wind around 3 mph. |
| Friday | Sunny. High near 87, with temperatures falling to around 81 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 16 mph. |
| Friday Night | Mostly clear. Low around 63, with temperatures rising to around 67 overnight. Southwest wind 6 to 9 mph. |
| Saturday | A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Southwest wind around 8 mph. Chance of precipitation is 20%. |
| Saturday Night | A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Southwest wind around 7 mph. Chance of precipitation is 20%. |
| Sunday | A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%. |
| Sunday Night | A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%. |
| Monday | A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 70. Chance of precipitation is 40%. |
| Monday Night | A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%. |
| Tuesday | Sunny, with a high near 73. |
| Tuesday Night | Mostly clear, with a low around 55. |
| Wednesday | Sunny, with a high near 82. |
| Wednesday Night | Mostly clear, with a low around 59. |
| Thursday | Sunny, with a high near 80. |
