Average Soil Temperature in San Juan, PR for September 2026
Data from Corozal (20.6 mi away) • 30 of 30 days reported
Monthly Summary by Depth
2" depth
81.1°F
avg
78.1°F – 82.9°F
30 days
4" depth
81.3°F
avg
78.3°F – 83.3°F
30 days
8" depth
82.3°F
avg
80.1°F – 84°F
30 days
20" depth
81.5°F
avg
80.4°F – 82°F
30 days
40" depth
81.5°F
avg
81.5°F – 81.5°F
30 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Sep 1 | 82°F | 81.9°F | 82.9°F | 82°F | 81.5°F |
| Sep 2 | 82°F | 81.5°F | 83.5°F | 82°F | 81.5°F |
| Sep 3 | 82°F | 82.4°F | 83.5°F | 82°F | 81.5°F |
| Sep 4 | 82.9°F | 83.3°F | 84°F | 82°F | 81.5°F |
| Sep 5 | 82°F | 82.4°F | 83.5°F | 82°F | 81.5°F |
| Sep 6 | 80.4°F | 80.6°F | 82°F | 81.5°F | 81.5°F |
| Sep 7 | 78.1°F | 78.3°F | 80.4°F | 81°F | 81.5°F |
| Sep 8 | 80.4°F | 80.2°F | 81.5°F | 81°F | 81.5°F |
| Sep 9 | 82°F | 81.9°F | 82°F | 81°F | 81.5°F |
| Sep 10 | 82.4°F | 82.9°F | 82.9°F | 81°F | 81.5°F |
| Sep 11 | 82.4°F | 83.3°F | 83.5°F | 81.5°F | 81.5°F |
| Sep 12 | 82°F | 82.2°F | 82.9°F | 82°F | 81.5°F |
| Sep 13 | 81.5°F | 81.5°F | 82.9°F | 82°F | 81.5°F |
| Sep 14 | 81°F | 81°F | 82.4°F | 82°F | 81.5°F |
| Sep 15 | 81.5°F | 81.7°F | 82.4°F | 81.5°F | 81.5°F |
| Sep 16 | 81.5°F | 81.9°F | 82.4°F | 81.5°F | 81.5°F |
| Sep 17 | 81.5°F | 81.1°F | 82.4°F | 82°F | 81.5°F |
| Sep 18 | 82°F | 82.4°F | 82.9°F | 82°F | 81.5°F |
| Sep 19 | 82°F | 82.6°F | 82.9°F | 82°F | 81.5°F |
| Sep 20 | 81.5°F | 81.5°F | 82.9°F | 82°F | 81.5°F |
| Sep 21 | 80.4°F | 80.6°F | 82°F | 81.5°F | 81.5°F |
| Sep 22 | 80.4°F | 80.8°F | 82°F | 81.5°F | 81.5°F |
| Sep 23 | 80.4°F | 80.4°F | 82°F | 81.5°F | 81.5°F |
| Sep 24 | 81.5°F | 81.7°F | 82.4°F | 81.5°F | 81.5°F |
| Sep 25 | 81.5°F | 81.3°F | 82.4°F | 81.5°F | 81.5°F |
| Sep 26 | 79.5°F | 79.3°F | 81.5°F | 81.5°F | 81.5°F |
| Sep 27 | 78.1°F | 78.3°F | 80.1°F | 81°F | 81.5°F |
| Sep 28 | 80.4°F | 81.1°F | 81°F | 80.4°F | 81.5°F |
| Sep 29 | 80.1°F | 80.6°F | 81°F | 80.4°F | 81.5°F |
| Sep 30 | 81°F | 81.7°F | 81.5°F | 81°F | 81.5°F |