Average Soil Temperature in Santa Monica, CA for September 2026
Data from Santa Barbara 11 W (83.9 mi away) • 25 of 30 days reported
Monthly Summary by Depth
2" depth
76.9°F
avg
73.8°F – 83.5°F
25 days
4" depth
75.9°F
avg
73.2°F – 79.9°F
25 days
8" depth
75.6°F
avg
73.8°F – 77.7°F
25 days
20" depth
75.6°F
avg
74.7°F – 76.8°F
25 days
40" depth
75.8°F
avg
75°F – 76.5°F
25 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 74.3°F | 73.9°F | 74.5°F | 75.4°F | 76.3°F |
| Sep 2 | 75.2°F | 74.1°F | 74.3°F | 75°F | 75.7°F |
| Sep 3 | 76.5°F | 75.4°F | 75°F | 75.4°F | 75.7°F |
| Sep 4 | 76.8°F | 75.7°F | 75.4°F | 75.4°F | 75.7°F |
| Sep 5 | 77.2°F | 76.1°F | 75.6°F | 75.6°F | 75.7°F |
| Sep 6 | 75°F | 75.2°F | 75.6°F | 75.7°F | 75.9°F |
| Sep 7 | 77°F | 75.7°F | 75.4°F | 75.6°F | 75.7°F |
| Sep 8 | 75°F | 75.4°F | 75.7°F | 75.7°F | 75.7°F |
| Sep 9 | 80.6°F | 77.5°F | 76.3°F | 75.7°F | 75.7°F |
| Sep 10 | 83.5°F | 79.9°F | 77.7°F | 76.5°F | 75.9°F |
| Sep 11 | 80.8°F | 79°F | 77.7°F | 76.8°F | 76.3°F |
| Sep 12 | 78.8°F | 77.5°F | 77°F | 76.6°F | 76.5°F |
| Sep 13 | 77.5°F | 76.3°F | 76.1°F | 76.1°F | 76.5°F |
| Sep 14 | 77.2°F | 76.1°F | 75.9°F | 76.1°F | 76.3°F |
| Sep 15 | 77.7°F | 76.6°F | 76.3°F | 76.3°F | 76.3°F |
| Sep 16 | 77°F | 76.5°F | 76.1°F | 76.1°F | 76.3°F |
| Sep 17 | 77°F | 76.1°F | 75.7°F | 75.7°F | 76.1°F |
| Sep 18 | 74.7°F | 73.9°F | 74.5°F | 75.2°F | 75.7°F |
| Sep 19 | 75.2°F | 74.5°F | 74.5°F | 75°F | 75.6°F |
| Sep 20 | 74.8°F | 75.2°F | 75.4°F | 75.6°F | 75.6°F |
| Sep 21 | 74.5°F | 74.1°F | 74.5°F | 75°F | 75.6°F |
| Sep 22 | 73.8°F | 73.2°F | 73.8°F | 74.7°F | 75.2°F |
| Sep 23 | 75.9°F | 74.8°F | 74.5°F | 74.7°F | 75°F |
| Sep 24 | 79.7°F | 77.5°F | 76.1°F | 75.4°F | 75.2°F |
| Sep 25 | 76.5°F | 76.3°F | 76.1°F | 75.7°F | 75.6°F |