Yachats, Oregon has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 7.8 °C (low) to 14.4 °C (high). Annual precipitation averages 2011.7 Millimeters. Yachats is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.3 °C | 11.2 °C | 299.47 mm |
| February | 4.9 °C | 11.7 °C | 224.54 mm |
| March | 5.2 °C | 12.2 °C | 242.57 mm |
| April | 6.3 °C | 12.9 °C | 167.64 mm |
| May | 8.3 °C | 15 °C | 102.62 mm |
| June | 10.2 °C | 16.4 °C | 75.44 mm |
| July | 11.4 °C | 17.8 °C | 19.81 mm |
| August | 11.2 °C | 18.1 °C | 33.27 mm |
| September | 10.5 °C | 18.1 °C | 57.15 mm |
| October | 8.6 °C | 16.2 °C | 157.48 mm |
| November | 6.7 °C | 12.8 °C | 287.27 mm |
| December | 5.1 °C | 10.6 °C | 344.42 mm |
| Annual | 7.8 °C | 14.4 °C | 2011.68 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |