The best times to visit Arroyo Grande 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.


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    Weather in Arroyo Grande

    Temperature

    Average temperatures in Arroyo Grande 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 63rd 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 Arroyo Grande, the hottest months are September, August, 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 84.8°F (29.3°C) with temperatures rarely dropping below 55.8°F (13.2°C) at night.

    Arroyo Grande Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Arroyo Grande Temperatures (Celsius)

    Key
    High
    Average
    Low

    “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.

    Arroyo Grande Perceived Temperature (F)

    Key
    High
    Average
    Low

    Arroyo Grande Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Arroyo Grande 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

    MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
    Jan68.252.440.8
    Feb66.35343.1
    Mar69.655.245
    Apr7156.346.2
    May73.158.648.6
    Jun76.161.452
    Jul78.163.755.2
    Aug79.864.355.4
    Sep81.364.854.7
    Oct79.362.952.1
    Nov72.956.945.3
    Dec65.251.741.1

    Show Celsius

    MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
    Jan20.111.34.9
    Feb19.111.76.2
    Mar20.912.97.2
    Apr21.713.57.9
    May22.814.89.2
    Jun24.516.311.1
    Jul25.617.612.9
    Aug26.617.913
    Sep27.418.212.6
    Oct26.317.211.2
    Nov22.713.87.4
    Dec18.410.95.1


     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Arroyo Grande are August, 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 to mid May. For example, on the week of May 7th 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 Arroyo Grande? 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.

    Chanceof Precipitation

    The graph below shows the % chance of rainy and snowy days in Arroyo Grande.

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Arroyo Grande (in).

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
    Jan11%02.8
    Feb19%02.3
    Mar11%01.8
    Apr9%01
    May2%00.2
    Jun1%00.1
    Jul0%00.1
    Aug0%00
    Sep0%00
    Oct6%01
    Nov9%01.2
    Dec19%03.6

    Show Centimeters

    MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
    Jan1107.1
    Feb1905.8
    Mar1104.6
    Apr902.5
    May200.5
    Jun100.3
    Jul000.3
    Aug000
    Sep000
    Oct602.5
    Nov903
    Dec1909.1

     

    Humidity and Wind

    Arroyo Grande has some high humidity months, with other comfortably humid months. The least humid month is January (53.8% relative humidity), and the most humid month is July (63.7%).

    Wind in Arroyo Grande is usually calm. The windiest month is May, followed by April and June. May’s average wind speed of around 7.5 knots (8.6 MPH or 13.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid April where average top sustained speeds reach 18.4 knots, which is considered a fresh breeze.

    Relative Humidity (%)

    The graph below shows the average % humidity by month in Arroyo Grande.

    Key
    Avg. Relative Humidity

    Wind

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

    Key
    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.

    MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
    Jan4.1Light breeze12.3Significant breeze
    Feb4.9Light breeze13.9Significant breeze
    Mar5.9Light breeze16.1Significant breeze
    Apr7.3Gentle breeze17.7Strong breeze
    May7.5Gentle breeze17.4Significant breeze
    Jun6.8Light breeze16.2Significant breeze
    Jul6Light breeze14.3Significant breeze
    Aug6Light breeze14.9Significant breeze
    Sep5.6Light breeze14.8Significant breeze
    Oct5.2Light breeze15.1Significant breeze
    Nov4.1Light breeze12.6Significant breeze
    Dec4.2Light breeze12.5Significant breeze

    Show Relative Humidity by Month

    MonthAvg. Relative Humidity
    Jan53.8%
    Feb63.6%
    Mar60.8%
    Apr59%
    May59.1%
    Jun61.4%
    Jul63.7%
    Aug62.6%
    Sep58.9%
    Oct55.3%
    Nov55.2%
    Dec58.9%

     

    Is it Safe to Travel to Arroyo Grande?

    Our best data indicates this area is generally safe. As of Mar 17, 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 Mar 15, 2019.


     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Arroyo Grande, CA, US is February, followed by July and June. 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 Arroyo Grande in January. Those willing to visit at these times will likely find it the least expensive month.

    Estimated Tourism by Month

     

    Most Popular Months to Visit

    Key
    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 56.8 in January means 56.8% of the tourists vs. February.


    Overall Arroyo Grande Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderate. Highs range from 75°F (23.9°C) and 66°F (18.9°C) with warmer temperatures in the later months. Rain is rare with 1 to 3 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 comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in Arroyo Grande, so lodging and other accommodations may cost more than usual.

    Fall (September through November)

    Fall daily highs range from 83.9°F (28.8°C) and 70.4°F (21.3°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 0 to 3 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

    Winter (December through February)

    Weather is too cold this time of year in Arroyo Grande to be enjoyable for warm weather travelers. The average high during this season is between 70.2°F (21.2°C) and 63.7°F (17.6°C). On average, it rains or snows a fair amount: 3 to 6 times per month. These times of year are the slowest with tourists.

     

    Best Times to Travelthe United States › Arroyo Grande, CA, US


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