The best times to visit Bristol for ideal weather are

May 21st to September 30th

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

 


Bristol Travel Guide

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

    Temperature

    Average temperatures in Bristol vary 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 Bristol, 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 53.6°F (12°C) with temperatures rarely dropping below 40.9°F (4.9°C) at night.

    Bristol Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Bristol 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.

    Bristol Perceived Temperature (F)

    Key
    High
    Average
    Low

    Bristol Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Bristol 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 45.8 42.1 36
    Feb 46.8 42.4 36.2
    Mar 51.7 45.8 38.3
    Apr 58.1 51 42
    May 62.3 55.7 46.9
    Jun 67.3 60.6 51.9
    Jul 69.2 62.9 54.3
    Aug 67.9 62.2 54.6
    Sep 65 58.8 50.5
    Oct 58.8 53.6 46
    Nov 51.6 47.6 41.8
    Dec 45.1 41.4 36.1

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 7.7 5.6 2.2
    Feb 8.2 5.8 2.3
    Mar 10.9 7.7 3.5
    Apr 14.5 10.6 5.6
    May 16.8 13.2 8.3
    Jun 19.6 15.9 11.1
    Jul 20.7 17.2 12.4
    Aug 19.9 16.8 12.6
    Sep 18.3 14.9 10.3
    Oct 14.9 12 7.8
    Nov 10.9 8.7 5.4
    Dec 7.3 5.2 2.3

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Bristol are November, January, 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 0.7 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-January with an average of 2.4 days with significant precipitation the week of January 15th.

    When can you find snow in Bristol? Weather stations report a good amount of snow throughout the year likely to be deepest around November, especially close to early November. Powder (new snow) is most often falls around November 19th. 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 Bristol.

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Bristol (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 28.6 4.6 0.06
    Feb 25.7 2.8 0.04
    Mar 17.1 0.4 0.02
    Apr 15.7 0.8 0.02
    May 21.4 0 0.04
    Jun 18.6 0 0.04
    Jul 22.9 0.2 0.05
    Aug 22.9 0 0.05
    Sep 17.1 0 0.03
    Oct 24.3 0 0.04
    Nov 31.4 10.4 0.06
    Dec 27.1 0.6 0.05

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 28.6 11.7 0.15
    Feb 25.7 7.1 0.1
    Mar 17.1 1 0.05
    Apr 15.7 2 0.05
    May 21.4 0 0.1
    Jun 18.6 0 0.1
    Jul 22.9 0.5 0.13
    Aug 22.9 0 0.13
    Sep 17.1 0 0.08
    Oct 24.3 0 0.1
    Nov 31.4 26.4 0.15
    Dec 27.1 1.5 0.13

     

    Humidity and Wind

    Bristol has slightly high to average humidity compared to most tourist destinations. The least humid month is April (64% relative humidity), and the most humid month is December (82.3%).

    Wind in Bristol is usually moderate. The windiest month is January, followed by May and July. January’s average wind speed of around 10.1 knots (11.6 MPH or 18.7 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 early-to-mid-January where average top sustained speeds reach 16.9 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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 10.1 a gentle breeze 15.6 a moderate breeze
    Feb 8.7 a gentle breeze 13.7 a moderate breeze
    Mar 9 a gentle breeze 14.2 a moderate breeze
    Apr 8.6 a gentle breeze 13.6 a moderate breeze
    May 9.4 a gentle breeze 14.6 a moderate breeze
    Jun 8.6 a gentle breeze 13.6 a moderate breeze
    Jul 9.1 a gentle breeze 14.3 a moderate breeze
    Aug 8.6 a gentle breeze 13.8 a moderate breeze
    Sep 8.3 a gentle breeze 13 a moderate breeze
    Oct 8.1 a gentle breeze 12.8 a moderate breeze
    Nov 9 a gentle breeze 14.2 a moderate breeze
    Dec 8.8 a gentle breeze 13.9 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 82.1
    Feb 78.2
    Mar 68.8
    Apr 64
    May 64.8
    Jun 64.3
    Jul 66.6
    Aug 70.9
    Sep 71
    Oct 76.4
    Nov 81.4
    Dec 82.3

     

    Is it Safe to Travel to Bristol?

    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.
     

    Overall Bristol Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderately cold. Highs range from 49.4°F (9.7°C) and 36.7°F (2.6°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 7 days of precipitation per month. Spring is slow/unreported for tourism, which makes it a good time for those looking for deals.

    Summer (June through August)

    The middle-year months have slightly cold weather with high temperatures that are comfortable. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is slow/unreported season for tourism in Bristol, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 50.1°F (10.1°C) and 35.2°F (1.8°C), which will feel chilly given the humidity and wind. It rains or snows a fair amount: 5 to 9 days per month. Tourism is slow/unreported during these months due to the weather, so hotels may be normally priced.

    Winter (December through February)

    Weather is too cold this time of year in Bristol to be enjoyable for warm weather travelers. The average high during this season is between 36.7°F (2.6°C) and 33.2°F (0.7°C). On average, it rains or snows a noticeable amount: 7 to 9 times per month. These times of year are slow/unreported with tourists.