Average Soil Temperature in Hilo, HI for September 2026
Data from Silver Sword (21.9 mi away) • 25 of 30 days reported
Monthly Summary by Depth
2" depth
54.4°F
avg
50.4°F – 59°F
25 days
4" depth
57.8°F
avg
55.4°F – 59.9°F
25 days
20" depth
55.6°F
avg
54.7°F – 56.3°F
25 days
Daily Readings
| Date | 2" | 4" | 20" |
|---|---|---|---|
| Sep 1 | 57.7°F | 59°F | 54.7°F |
| Sep 2 | 50.4°F | 57.9°F | 55.2°F |
| Sep 3 | 55.8°F | 58.8°F | 55°F |
| Sep 4 | 55.4°F | 59.2°F | 55.2°F |
| Sep 5 | 55°F | 58.1°F | 55.4°F |
| Sep 6 | 54.9°F | 56.5°F | 55.6°F |
| Sep 7 | 54.3°F | 56.7°F | 55.4°F |
| Sep 8 | 59°F | 59.4°F | 55.4°F |
| Sep 9 | 57°F | 58.3°F | 55.8°F |
| Sep 10 | 52.9°F | 57.6°F | 56.1°F |
| Sep 11 | 56.3°F | 59.9°F | 55.9°F |
| Sep 12 | 55.8°F | 59.5°F | 56.1°F |
| Sep 13 | 52.2°F | 57.4°F | 56.3°F |
| Sep 14 | 55.8°F | 57.2°F | 55.9°F |
| Sep 15 | 53.1°F | 58.8°F | 55.8°F |
| Sep 16 | 55.9°F | 58.3°F | 55.9°F |
| Sep 17 | 54.7°F | 57.6°F | 55.9°F |
| Sep 18 | 53.2°F | 57.4°F | 55.9°F |
| Sep 19 | 51.8°F | 57.6°F | 55.8°F |
| Sep 20 | 51.6°F | 56.7°F | 55.8°F |
| Sep 21 | 51.6°F | 56.7°F | 55.6°F |
| Sep 22 | 53.8°F | 56.5°F | 55.4°F |
| Sep 23 | 54.5°F | 57°F | 55.4°F |
| Sep 24 | 53.6°F | 56.7°F | 55.8°F |
| Sep 25 | 53.4°F | 55.4°F | 55.8°F |