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The best time to visit Napa
May, June, September and October — daytime highs around 28°C. Every number on this page is measured, not guessed.
Napa month by month
| Month | Day | Night | Wet days | |
|---|---|---|---|---|
| January | 15°C | 5°C | 11 | |
| February | 17°C | 5°C | 8 | |
| March | 17°C | 6°C | 11 | |
| April | 21°C | 8°C | 5 | Shoulder |
| May | 25°C | 11°C | 3 | Best |
| June | 29°C | 13°C | 1 | Best |
| July | 30°C | 14°C | 0 | Shoulder |
| August | 31°C | 14°C | 0 | Shoulder |
| September | 30°C | 14°C | 1 | Best |
| October | 26°C | 12°C | 3 | Best |
| November | 19°C | 7°C | 7 | Shoulder |
| December | 15°C | 5°C | 10 |
The short version
Warmest: August, around 31°C by day. Coolest: January, around 15°C by day and 5°C at night. Wettest: January with about 11 wet days. Driest: July with about 0.
If you want fewer people: April, July, August, November sit right beside the best months. The weather is close and the crowds are not.
Book it for those months
Prices climb as the good months fill up.
Common questions
When is the best time to visit Napa?
The best months are May, June, September and October, when daytime highs sit around 28°C.
What is the hottest month in Napa?
August, with daytime highs around 31°C.
What is the wettest month in Napa?
January, with about 11 wet days. The driest is July with about 0.
When is the cheapest time to visit Napa?
Prices follow the weather. The months either side of the best ones — April, July, August, November — are usually cheaper with similar conditions.
Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Napa, California. Source: Open-Meteo. Hotel and activity links are partner links — the price you pay is the same.