The best times to visit Temecula Valley Wine Country for ideal weather are
April 16th to November 4th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Temecula Valley Wine Country Travel Guide
Other Temecula Valley Wine Country Travel Info
Weather in Temecula Valley Wine Country
Temperature
Average temperatures in Temecula Valley Wine Country vary somewhat. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 67th 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 Temecula Valley Wine Country, the hottest months are August, September, and then July. See average monthly temperatures below. The warmest time of year is generally late August to early September where highs are regularly around 86.3°F (30.2°C) with temperatures rarely dropping below 60.6°F (15.9°C) at night.
Temecula Valley Wine Country Temperatures (Fahrenheit)
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Temecula Valley Wine Country Temperatures (Celsius)
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“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.
Temecula Valley Wine Country Perceived Temperature (F)
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Temecula Valley Wine Country Perceived Temperature (C)
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Average Temecula Valley 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 | 69.7 | 52.4 | 37.9 |
| Feb | 67.6 | 53 | 39.9 |
| Mar | 70.4 | 56.4 | 43.8 |
| Apr | 71.8 | 59 | 46.6 |
| May | 73.1 | 62.4 | 52.3 |
| Jun | 75.3 | 65.4 | 57 |
| Jul | 79.2 | 69 | 60.3 |
| Aug | 82 | 70.5 | 60.4 |
| Sep | 83.1 | 69.7 | 58.1 |
| Oct | 79.2 | 64.4 | 50.9 |
| Nov | 73.9 | 57.1 | 42.6 |
| Dec | 66.6 | 51.6 | 38.9 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 20.9 | 11.3 | 3.3 |
| Feb | 19.8 | 11.7 | 4.4 |
| Mar | 21.3 | 13.6 | 6.6 |
| Apr | 22.1 | 15 | 8.1 |
| May | 22.8 | 16.9 | 11.3 |
| Jun | 24.1 | 18.6 | 13.9 |
| Jul | 26.2 | 20.6 | 15.7 |
| Aug | 27.8 | 21.4 | 15.8 |
| Sep | 28.4 | 20.9 | 14.5 |
| Oct | 26.2 | 18 | 10.5 |
| Nov | 23.3 | 13.9 | 5.9 |
| Dec | 19.2 | 10.9 | 3.8 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Temecula Valley Wine Country are June, September, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early May. For example, on the week of April 30th 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 2 days of significant precipitation the week of December 17th.
When can you find snow in Temecula Valley 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 Temecula Valley Wine Country.
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Snow on the Ground
The graph below shows the average snow on the ground in Temecula Valley Wine Country (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 10% | 0 | 1.3 |
| Feb | 13% | 0 | 2 |
| Mar | 7% | 0 | 1.4 |
| Apr | 6% | 0 | 0.7 |
| May | 4% | 0 | 0.5 |
| Jun | 0% | 0 | 0 |
| Jul | 1% | 0 | 0.2 |
| Aug | 2% | 0 | 0.2 |
| Sep | 0% | 0 | 0.1 |
| Oct | 5% | 0 | 0.7 |
| Nov | 8% | 0 | 1 |
| Dec | 16% | 0 | 3.3 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 10 | 0 | 3.3 |
| Feb | 13 | 0 | 5.1 |
| Mar | 7 | 0 | 3.6 |
| Apr | 6 | 0 | 1.8 |
| May | 4 | 0 | 1.3 |
| Jun | 0 | 0 | 0 |
| Jul | 1 | 0 | 0.5 |
| Aug | 2 | 0 | 0.5 |
| Sep | 0 | 0 | 0.3 |
| Oct | 5 | 0 | 1.8 |
| Nov | 8 | 0 | 2.5 |
| Dec | 16 | 0 | 8.4 |
Humidity and Wind
Temecula Valley Wine Country has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is January (49.5% relative humidity), and the most humid month is July (64.7%).
Wind in Temecula Valley Wine Country is usually extremely calm. The windiest month is May, followed by June and July. May’s average wind speed of around 3.8 knots (4.4 MPH or 7.1 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid May where average top sustained speeds reach 10.6 knots, which is considered a gentle breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Temecula Valley Wine Country.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 2.6 | Barely noticeable | 9.2 | Gentle breeze |
| Feb | 2.9 | Barely noticeable | 9.9 | Gentle breeze |
| Mar | 3.2 | Barely noticeable | 9.6 | Gentle breeze |
| Apr | 3.6 | Barely noticeable | 10.2 | Gentle breeze |
| May | 3.8 | Barely noticeable | 10.3 | Gentle breeze |
| Jun | 3.8 | Barely noticeable | 10 | Gentle breeze |
| Jul | 3.7 | Barely noticeable | 10.1 | Gentle breeze |
| Aug | 3.6 | Barely noticeable | 10.1 | Gentle breeze |
| Sep | 3.5 | Barely noticeable | 10.1 | Gentle breeze |
| Oct | 3.1 | Barely noticeable | 9.5 | Gentle breeze |
| Nov | 2.6 | Barely noticeable | 8.6 | Gentle breeze |
| Dec | 2.7 | Barely noticeable | 8.8 | Gentle breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 49.5% |
| Feb | 58.9% |
| Mar | 58% |
| Apr | 55.7% |
| May | 59.5% |
| Jun | 63.5% |
| Jul | 64.7% |
| Aug | 61.3% |
| Sep | 59.7% |
| Oct | 55.6% |
| Nov | 52% |
| Dec | 57.6% |
Is it Safe to Travel to Temecula Valley Wine Country?
Our best data indicates this area is generally safe. As of Dec 04, 2023 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 Dec 04, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Temecula Valley Wine Country, CA, US is August, followed by June and May. 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 Temecula Valley Wine Country in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Temecula Valley Wine Country Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 75.5°F (24.2°C) and 67.9°F (19.9°C) with warmer temperatures in the later months. Rain is rare with 1 to 2 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 comfortable. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Temecula Valley Wine Country, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 84.9°F (29.4°C) and 71.1°F (21.7°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 0 to 2 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 Temecula Valley Wine Country to be enjoyable for warm weather travelers. The average high during this season is between 71.7°F (22.1°C) and 65.2°F (18.4°C). On average, it rains or snows a fair amount: 3 to 5 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› the United States › Temecula Valley Wine Country, CA, US