The best times to visit Wine Country for ideal weather are

April 30th to October 21st

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Wine Country Travel Info

Weather in Wine Country


Average temperatures in Wine Country vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Wine Country, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 96.4°F (35.8°C) with temperatures rarely dropping below 55.9°F (13.3°C) at night.

Wine Country Temperatures (Fahrenheit)


Wine Country Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Wine Country Perceived Temperature (F)


Wine Country Perceived Temperature (C)



Average Wine Country Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 60.8 45 34.5
Feb 62.3 48 37.8
Mar 66.9 51.5 40.1
Apr 71.9 54.8 41.8
May 79.3 61.2 46.4
Jun 87.3 68.4 51.9
Jul 94.8 73.4 55.3
Aug 94.1 72.1 54.1
Sep 90.7 67.9 50.4
Oct 78.8 59.6 45.9
Nov 65.9 50.4 39.3
Dec 56.5 44.4 35.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 16 7.2 1.4
Feb 16.8 8.9 3.2
Mar 19.4 10.8 4.5
Apr 22.2 12.7 5.4
May 26.3 16.2 8
Jun 30.7 20.2 11.1
Jul 34.9 23 12.9
Aug 34.5 22.3 12.3
Sep 32.6 19.9 10.2
Oct 26 15.3 7.7
Nov 18.8 10.2 4.1
Dec 13.6 6.9 2.2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Wine Country are August, July, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid June. For example, on the week of June 11th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 3 days of significant precipitation the week of December 17th.

When can you find snow in Wine Country? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Wine Country.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Wine Country (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 16% 0 4.1
Feb 26% 0 5.2
Mar 25% 0 4.3
Apr 13% 0 2.1
May 7% 0 0.9
Jun 2% 0 0.3
Jul 0% 0 0
Aug 0% 0 0
Sep 2% 0 0.3
Oct 12% 0 2.1
Nov 19% 0 3.1
Dec 33% 0 6.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 16 0 10.4
Feb 26 0 13.2
Mar 25 0 10.9
Apr 13 0 5.3
May 7 0 2.3
Jun 2 0 0.8
Jul 0 0 0
Aug 0 0 0
Sep 2 0 0.8
Oct 12 0 5.3
Nov 19 0 7.9
Dec 33 0 16.5


Humidity and Wind

Wine Country has some very humid months, and slightly dry months in the opposite season. The least humid month is August (36.2% relative humidity), and the most humid month is December (73.5%).

Wind in Wine Country is usually extremely calm. The windiest month is June, followed by May and July. June’s average wind speed of around 4.2 knots (4.8 MPH or 7.7 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May where average top sustained speeds reach 12 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Wine Country.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 1.5 Barely noticeable 6.9 Light breeze
Feb 2.7 Barely noticeable 9.1 Gentle breeze
Mar 3.1 Barely noticeable 10.1 Light breeze
Apr 3.8 Barely noticeable 11.3 Significant breeze
May 4.1 Light breeze 11.4 Light breeze
Jun 4.2 Light breeze 11.3 Significant breeze
Jul 3.8 Barely noticeable 10.6 Light breeze
Aug 3.3 Barely noticeable 10.4 Gentle breeze
Sep 2.6 Barely noticeable 9.9 Light breeze
Oct 2.2 Barely noticeable 8.4 Gentle breeze
Nov 1.7 Barely noticeable 7.4 Light breeze
Dec 2.1 Barely noticeable 7.6 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 67.5%
Feb 65.6%
Mar 58.7%
Apr 49.4%
May 43.4%
Jun 38.2%
Jul 36.3%
Aug 36.2%
Sep 38.2%
Oct 51.6%
Nov 66.5%
Dec 73.5%


Is it Safe to Travel to Wine Country?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Wine Country, CA, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Wine Country in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 36.3 in December means 36.3% of the tourists vs. July.



Overall Wine Country Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 81.6°F (27.6°C) and 62.4°F (16.9°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 8 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Wine Country, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 93.7°F (34.3°C) and 61.7°F (16.5°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 1 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Wine Country to be enjoyable for warm weather travelers. The average high during this season is between 64.1°F (17.8°C) and 54.9°F (12.7°C). On average, it rains or snows a fair amount: 5 to 10 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Wine Country, CA, US