Average Soil Temperature in South Portland, ME for August 2026
Data from Durham 2 N (46 mi away) • 25 of 31 days reported
Monthly Summary by Depth
2" depth
69.7°F
avg
66.7°F – 73.4°F
25 days
4" depth
67.6°F
avg
64.9°F – 70.5°F
25 days
Daily Readings
| Date | 2" | 4" |
|---|---|---|
| Aug 1 | 69.6°F | 66.6°F |
| Aug 2 | 71.1°F | 67.6°F |
| Aug 3 | 70.7°F | 68.4°F |
| Aug 4 | 69.6°F | 67.5°F |
| Aug 5 | 69.3°F | 67.1°F |
| Aug 6 | 71.6°F | 68.7°F |
| Aug 7 | 73.2°F | 70.2°F |
| Aug 8 | 73.4°F | 70.5°F |
| Aug 9 | 73°F | 70.5°F |
| Aug 10 | 71.6°F | 69.6°F |
| Aug 11 | 71.1°F | 69.1°F |
| Aug 12 | 70°F | 68.2°F |
| Aug 13 | 70.2°F | 68.2°F |
| Aug 14 | 68.5°F | 67.3°F |
| Aug 15 | 66.7°F | 65.8°F |
| Aug 16 | 66.7°F | 64.9°F |
| Aug 17 | 67.8°F | 65.8°F |
| Aug 18 | 69.1°F | 66.9°F |
| Aug 19 | 69.4°F | 67.1°F |
| Aug 20 | 68.9°F | 67.1°F |
| Aug 21 | 69.4°F | 67.3°F |
| Aug 22 | 67.8°F | 66.2°F |
| Aug 23 | 67.3°F | 65.8°F |
| Aug 24 | 69.1°F | 66.7°F |
| Aug 25 | 67.1°F | 65.8°F |