Average Soil Temperature in Fernandina Beach, FL — December 2025
Data from Brunswick 23 S (9.7 mi away) • 27 of 31 days reported
Monthly Summary by Depth
2" depth
59.5°F
avg
52.5°F – 66°F
27 days
4" depth
62°F
avg
57.6°F – 66.9°F
27 days
8" depth
60.9°F
avg
55.6°F – 66.2°F
27 days
20" depth
62.9°F
avg
59.2°F – 67.3°F
27 days
40" depth
64.6°F
avg
61.9°F – 68.4°F
27 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Dec 1 | 64.2°F | 66°F | 65.1°F | 66.7°F | 68.2°F |
| Dec 2 | 66°F | 66.9°F | 66.2°F | 67.1°F | 68.4°F |
| Dec 3 | 62.1°F | 66.7°F | 65.1°F | 67.3°F | 68.4°F |
| Dec 4 | 58.3°F | 64.8°F | 62.2°F | 65.8°F | 68°F |
| Dec 5 | 63°F | 64.4°F | 63.1°F | 65.1°F | 67.3°F |
| Dec 6 | 61.3°F | 65.1°F | 63.7°F | 65.7°F | 67.3°F |
| Dec 7 | 59.5°F | 63.3°F | 61.5°F | 64.6°F | 66.7°F |
| Dec 8 | 59.9°F | 63.1°F | 61.7°F | 63.9°F | 66°F |
| Dec 9 | 56.1°F | 62.1°F | 59.5°F | 63.1°F | 65.5°F |
| Dec 10 | 57°F | 61°F | 58.8°F | 62.2°F | 64.8°F |
| Dec 11 | 56.3°F | 60.4°F | 58.6°F | 61.9°F | 64.2°F |
| Dec 16 | 53.1°F | 57.7°F | 55.6°F | 59.5°F | 62.4°F |
| Dec 17 | 55°F | 57.6°F | 56.1°F | 59.2°F | 61.9°F |
| Dec 18 | 59.4°F | 59.4°F | 59°F | 60.1°F | 61.9°F |
| Dec 19 | 62.2°F | 61.5°F | 61.7°F | 61.5°F | 62.4°F |
| Dec 20 | 55.8°F | 60.6°F | 58.8°F | 61.5°F | 63°F |
| Dec 21 | 55.2°F | 59°F | 57.2°F | 60.4°F | 62.6°F |
| Dec 22 | 56.8°F | 58.6°F | 57.4°F | 60.1°F | 62.2°F |
| Dec 23 | 60.1°F | 59.7°F | 59.5°F | 60.6°F | 62.2°F |
| Dec 24 | 60.6°F | 60.6°F | 60.4°F | 61.3°F | 62.6°F |
| Dec 25 | 61°F | 61.3°F | 61.2°F | 62.1°F | 63°F |
| Dec 26 | 61.5°F | 61.9°F | 61.5°F | 62.4°F | 63.3°F |
| Dec 27 | 64°F | 62.6°F | 63°F | 63°F | 63.7°F |
| Dec 28 | 65.3°F | 64°F | 64.4°F | 64°F | 64.2°F |
| Dec 29 | 63.9°F | 64.4°F | 64.4°F | 64.6°F | 64.8°F |
| Dec 30 | 55.8°F | 62.8°F | 60.6°F | 63.7°F | 64.9°F |
| Dec 31 | 52.5°F | 59.4°F | 56.7°F | 61.3°F | 63.9°F |