The best times to visit Plymouth for ideal weather are

May 28th to October 7th

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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Plymouth Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Plymouth

    Temperature

    Average temperatures in Plymouth vary very little and are seasonally temperate. The area is in the top 67 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Plymouth, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 51.7°F (10.9°C) with temperatures rarely dropping below 42.6°F (5.9°C) at night.

    Plymouth Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Plymouth 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.

    Plymouth Perceived Temperature (F)

    Key
    High
    Average
    Low

    Plymouth Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Plymouth 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 46.9 43.4 39.1
    Feb 48 44 39.9
    Mar 51.5 46 40.5
    Apr 57 51 44.5
    May 60.1 54.8 48.9
    Jun 65 59.3 53.3
    Jul 66.5 61.1 55.9
    Aug 66 60.9 55.7
    Sep 64.2 58.6 52.7
    Oct 59 54.5 49.7
    Nov 52.8 49.1 44.8
    Dec 47.3 43.7 39.5

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 8.3 6.3 3.9
    Feb 8.9 6.7 4.4
    Mar 10.8 7.8 4.7
    Apr 13.9 10.6 6.9
    May 15.6 12.7 9.4
    Jun 18.3 15.2 11.8
    Jul 19.2 16.2 13.3
    Aug 18.9 16.1 13.2
    Sep 17.9 14.8 11.5
    Oct 15 12.5 9.8
    Nov 11.6 9.5 7.1
    Dec 8.5 6.5 4.2

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Plymouth are January, November, and then December. The lowest chance of rain or snow occurs around mid-April. For example, on the week of April 16th there are only 1.3 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-January with an average of 3.1 days with significant precipitation the week of January 15th.

    When can you find snow in Plymouth? 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 Plymouth.

    Key
    Days with precipitation

    Snow on the Ground

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

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 38.6 0 0.07
    Feb 35.7 0 0.07
    Mar 27.1 0 0.05
    Apr 24.3 0 0.04
    May 27.1 0 0.04
    Jun 25.7 0 0.04
    Jul 28.6 0 0.05
    Aug 34.3 0 0.07
    Sep 28.6 0 0.03
    Oct 35.7 0 0.07
    Nov 38.6 0 0.08
    Dec 38.6 0 0.08

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 38.6 0 0.18
    Feb 35.7 0 0.18
    Mar 27.1 0 0.13
    Apr 24.3 0 0.1
    May 27.1 0 0.1
    Jun 25.7 0 0.1
    Jul 28.6 0 0.13
    Aug 34.3 0 0.18
    Sep 28.6 0 0.08
    Oct 35.7 0 0.18
    Nov 38.6 0 0.2
    Dec 38.6 0 0.2

     

    Humidity and Wind

    Plymouth has above average humidity compared to most tourist destinations. The least humid month is April (70.1% relative humidity), and the most humid month is January (83.4%).

    Wind in Plymouth is usually moderate. The windiest month is January, followed by December and November. January’s average wind speed of around 10.3 knots (11.9 MPH or 19.1 KPH) is considered “gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late December where average top sustained speeds reach 18.1 knots, which is considered a fresh breeze.

    Relative Humidity (%)

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

    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.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 10.3 a gentle breeze 16.4 a moderate breeze
    Feb 9.5 a gentle breeze 15.4 a moderate breeze
    Mar 9.3 a gentle breeze 15 a moderate breeze
    Apr 8.4 a gentle breeze 13.5 a moderate breeze
    May 9.3 a gentle breeze 14.2 a moderate breeze
    Jun 8.2 a gentle breeze 13 a moderate breeze
    Jul 8.8 a gentle breeze 13.8 a moderate breeze
    Aug 8.5 a gentle breeze 13.4 a moderate breeze
    Sep 8 a gentle breeze 13 a moderate breeze
    Oct 8.6 a gentle breeze 14 a moderate breeze
    Nov 9.9 a gentle breeze 16.3 a moderate breeze
    Dec 10.2 a gentle breeze 16.6 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 83.4
    Feb 82.5
    Mar 73.6
    Apr 70.1
    May 72.8
    Jun 72.8
    Jul 78.5
    Aug 80.2
    Sep 79.2
    Oct 82.2
    Nov 83
    Dec 82.6

     

    Is it Safe to Travel to Plymouth?

    As of 6/22/2017 there are travel warnings for the United Kingdom; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Plymouth, United Kingdom is July, followed by May and September. 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 Plymouth 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

    Key
    Tourists Seeking Accommodations

    Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Displayed data is calculated relative to the peak, so a score of 39.7 in November means 39.7% of the tourists vs. July.

    Overall Plymouth Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderately cold. Highs range from 47.6°F (8.7°C) and 37°F (2.8°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 8 days of precipitation per month. Spring is busy for tourism, which makes it a good time for those looking for things to do.

    Summer (June through August)

    The middle-year months have slightly cold weather with high temperatures that are comfortable. These months see moderate precipitation with 8 to 11 days of precipitation per month. June – August is the busiest season for tourism in Plymouth, so lodging and other accommodations may cost more than usual.

    Fall (September through November)

    Fall daily highs range from 49.4°F (9.7°C) and 36.4°F (2.4°C), which will feel chilly given the humidity and wind. It rains or snows a great amount: 9 to 12 days per month. Tourism is the slowest 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 Plymouth to be enjoyable for warm weather travelers. The average high during this season is between 37.1°F (2.8°C) and 34.5°F (1.4°C). On average, it rains or snows a good amount: 10 to 12 times per month. These times of year are fairly slow with tourists.

     

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