Average Soil Temperature in Monterey, CA — December 2025
Data from Vallecitos (63.8 mi away) • 31 of 31 days reported
Monthly Summary by Depth
2" depth
47.6°F
avg
43.7°F – 54.7°F
31 days
4" depth
48.5°F
avg
45.3°F – 54.3°F
31 days
8" depth
50°F
avg
47.3°F – 54.5°F
31 days
20" depth
53.8°F
avg
51.8°F – 55.6°F
17 days
40" depth
60.1°F
avg
58.8°F – 63.1°F
31 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Dec 1 | 47.5°F | 49.1°F | 51.1°F | — | 63.1°F |
| Dec 2 | 46.8°F | 48.4°F | 50.7°F | — | 63°F |
| Dec 3 | 45°F | 46.9°F | 49.8°F | — | 62.6°F |
| Dec 4 | 43.7°F | 45.5°F | 48.4°F | — | 62.4°F |
| Dec 5 | 44.2°F | 45.7°F | 48.2°F | — | 62.1°F |
| Dec 6 | 45°F | 45.9°F | 48.2°F | — | 61.7°F |
| Dec 7 | 45.3°F | 46.8°F | 48.4°F | — | 61.3°F |
| Dec 8 | 44.4°F | 45.5°F | 47.8°F | — | 61°F |
| Dec 9 | 43.9°F | 45.3°F | 47.7°F | — | 60.8°F |
| Dec 10 | 43.7°F | 45.3°F | 47.5°F | — | 60.4°F |
| Dec 11 | 43.7°F | 45.3°F | 47.5°F | — | 60.3°F |
| Dec 12 | 43.9°F | 45.3°F | 47.3°F | — | 59.9°F |
| Dec 13 | 44.4°F | 45.9°F | 47.7°F | — | 59.7°F |
| Dec 14 | 44.2°F | 45.9°F | 47.8°F | — | 59.5°F |
| Dec 15 | 45.7°F | 46.6°F | 48.2°F | 51.8°F | 59.2°F |
| Dec 16 | 48°F | 48.7°F | 49.1°F | 52°F | 59.2°F |
| Dec 17 | 50.2°F | 50.9°F | 50.5°F | 52.3°F | 59°F |
| Dec 18 | 49.6°F | 50.7°F | 51.4°F | 53.2°F | 58.8°F |
| Dec 19 | 49.8°F | 50.2°F | 50.7°F | 53.4°F | 58.8°F |
| Dec 20 | 52.2°F | 52.5°F | 52.3°F | 53.6°F | 59°F |
| Dec 21 | 53.4°F | 53.6°F | 53.4°F | 54.3°F | 59°F |
| Dec 22 | 52.3°F | 52.7°F | 53.2°F | 54.7°F | 59°F |
| Dec 23 | 54.7°F | 54.3°F | 53.8°F | 55°F | 59.2°F |
| Dec 24 | 53.1°F | 53.6°F | 54.5°F | 55.6°F | 59.2°F |
| Dec 25 | 52.2°F | 52.3°F | 53.4°F | 55.6°F | 59.4°F |
| Dec 26 | 50.9°F | 51.1°F | 52.9°F | 55.4°F | 59.4°F |
| Dec 27 | 49.5°F | 49.5°F | 51.6°F | 54.9°F | 59.4°F |
| Dec 28 | 47.3°F | 47.8°F | 50.5°F | 54.3°F | 59.4°F |
| Dec 29 | 45.9°F | 46.2°F | 48.9°F | 53.6°F | 59.2°F |
| Dec 30 | 46.9°F | 47.1°F | 48.2°F | 52.9°F | 59°F |
| Dec 31 | 49.3°F | 49.1°F | 49.5°F | 52.5°F | 58.8°F |