2026 Napa Valley Vintage
The 2026 season is underway. Harvest usually runs from August into October. The present vintage. No ratings exist yet, since wines are bottled and reviewed after harvest.
Weather and season
| Apr to Oct average temperature | 66.4°F |
|---|---|
| Estimated growing degree days | 3010 |
| Frost days, Mar to Apr | 0 |
| Days 90°F and up, Aug to Oct | 12 |
| Days 95° and up, jun to oct | 7 |
| Days 100° and up | 2 |
| Hottest day | 102°F, Sep 10 |
| Winter rain | 16.2 in |
| Spring rain | 5.1 in |
| Harvest rain | 0.1 in |
Station: south valley. Growing degree days are estimated from monthly means.
Explore 2026 on the interactive timeline