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
Weather in Bristol
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)
Bristol Temperatures (Celsius)
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)
Bristol Perceived Temperature (C)
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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
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.
Snow on the Ground
The graph below shows the average snow on the ground in Bristol (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
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.
The graph below shows wind speed (max and average) in knots.
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|
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.