Live soil temperature · 2 inches down
Soil temperature in San Antonio, TX
Right now · 78201
80.8°FHot
Annual bluegrass (Poa annua) and winter annual weeds: Not open yet: soil is still warm. Aim to have pre-emergent down before it cools past 70°F. Pre-emergent is a product that stops weed seeds before they sprout, so it only works ahead of germination.
By depth
- Surface
- 74.1°F
- 2 in depth
- 80.8°F
- 6 in depth
- 81.9°F
Past 14 days · 24-hour average
This week in San Antonio
Over the past week, soil 2 inches down in San Antonio, TX ranged from 77.3°F to 81.1°F and rose 1.5°F, averaging 79.1°F.
| Day | Surface | 2 in | 6 in |
|---|---|---|---|
| Mon | 79.6°F | 79.6°F | 79.5°F |
| Tue | 79°F | 79.4°F | 79.8°F |
| Wed | 77.1°F | 77.8°F | 79.5°F |
| Thu | 78.8°F | 78.6°F | 79.2°F |
| Fri | 80°F | 80.2°F | 80°F |
| Sat | 76.9°F | 77.3°F | 79.5°F |
| Sun | 81.7°F | 81.1°F | 80.2°F |
Daily averages from Open-Meteo for San Antonio, TX 78201. Readings refresh every six hours.
Interpretation
What this means for your grass.
- Bermuda
- Soil is still hot. Avoid elemental sulfur and heat-stress products and keep irrigation steady. Buy your fall pre-emergent now so it is on hand when soil cools toward 70°F.
- Zoysia
- Soil is hot. Keep irrigation consistent and watch for brown patch. Have your fall pre-emergent ready for when soil cools toward 70°F.
- St. Augustine
- St. Augustine is still growing and the season is turning. This is the fall pre-emergent window: get it down before soil falls below 70°F. Check the label for St. Augustine tolerance before you buy.
- Cool-season
- Still too hot for cool-season grass. Hold fertilizer, keep irrigation up, and wait for soil to cool before seeding or feeding.
Nearest readings
Soil temperature near San Antonio
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Weather data from Open-Meteo. Timing guidance follows the sources on when to apply pre-emergent and how to use soil temperature.Data as of Mon, 12 Oct 2026 00:06:56 GMT