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Best Time for Northern California: Wine Country to the Redwoods
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Sweet spot: April, May, June. Computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
💡 Good to know
- Crush season — vineyard air smells of fermenting fruit, harvest dinners stack the calendars, and the coastal fog gives the afternoons back.
- Grey-whale migration passes the Mendocino headlands and the redwoods drip in photogenic mist — cab fires and zinfandel weather inland.
| Month | Low | High | Rain | Daylight | |
|---|---|---|---|---|---|
| January | 6.2°C | 12.1°C | 154 mm | 9.6 h | |
| February | 6.4°C | 12.7°C | 142 mm | 10.5 h | |
| March | 7.1°C | 13.7°C | 129 mm | 11.7 h | |
| April | 7.7°C | 15.0°C | 66 mm | 13.0 h | |
| May | 9.4°C | 17.6°C | 30 mm | 14.1 h | |
| June | 11.1°C | 20.8°C | 11 mm | 14.7 h | |
| July | 12.5°C | 22.7°C | 2 mm | 14.5 h | |
| August | 12.8°C | 23.0°C | 2 mm | 13.5 h | |
| September | 12.5°C | 22.6°C | 9 mm | 12.2 h | |
| October | 10.8°C | 19.7°C | 50 mm | 11.0 h | |
| November | 8.1°C | 15.3°C | 103 mm | 9.8 h | |
| December | 6.3°C | 12.1°C | 210 mm | 9.3 h |