Average Soil Temperature in San Marcos, TX — May 2025
Data from Austin 33 NW (52.1 mi away) • 27 of 31 days reported
Monthly Summary by Depth
2" depth
76.5°F
avg
69.3°F – 82.9°F
27 days
4" depth
78.9°F
avg
71.6°F – 86°F
27 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| May 1 | 75.9°F | 77.7°F |
| May 2 | 71.2°F | 73.8°F |
| May 3 | 70.5°F | 73.2°F |
| May 4 | 71.2°F | 73.9°F |
| May 5 | 69.3°F | 71.6°F |
| May 6 | 70.5°F | 72.1°F |
| May 7 | 71.8°F | 73.6°F |
| May 8 | 72.3°F | 74.1°F |
| May 9 | 71.4°F | 73.9°F |
| May 10 | 70.7°F | 72.9°F |
| May 11 | 71.8°F | 74.3°F |
| May 12 | 74.1°F | 76.5°F |
| May 13 | 77.2°F | 78.8°F |
| May 14 | 81°F | 82.4°F |
| May 15 | 81.1°F | 83.1°F |
| May 16 | 82.2°F | 84°F |
| May 17 | 81.5°F | 84.6°F |
| May 18 | 79.7°F | 83.3°F |
| May 19 | 77.7°F | 80.8°F |
| May 20 | 80.4°F | 83.1°F |
| May 21 | 79.3°F | 82°F |
| May 22 | 82.9°F | 85.6°F |
| May 23 | 80.6°F | 85.1°F |
| May 24 | 82.2°F | 85.6°F |
| May 25 | 82.6°F | 86°F |
| May 30 | 76.6°F | 77.7°F |
| May 31 | 80.1°F | 79.9°F |