The best times to visit Calais for ideal weather are
May 14th 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.
Calais Travel Guide
Other Calais Travel Info
Weather in Calais
Average temperatures in Calais vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 35th 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 Calais, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 74°F (23.3°C) with temperatures rarely dropping below 54.8°F (12.7°C) at night.
Calais Temperatures (Fahrenheit)
Calais 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.
Calais Perceived Temperature (F)
Calais Perceived Temperature (C)
Average Calais 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 significant precipitation in Calais are September, April, and then March. 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 March. For example, on the week of March 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late October to early November with an average of 3 days of significant precipitation the week of October 29th.
When can you find snow in Calais? 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 Calais.
Snow on the Ground
The graph below shows the average snow on the ground in Calais (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
Calais has some extremely humid months, and above average humidity throughout the year. The least humid month is June (69.1% relative humidity), and the most humid month is November (81.6%).
Wind in Calais is usually moderate. The windiest month is December, followed by January and February. December’s average wind speed of around 12.4 knots (14.3 MPH or 23 KPH) is considered “a moderate 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 20.8 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Calais.
The graph below shows wind speed (max and average) in knots.
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||11||Significant breeze||17||Strong breeze|
|Feb||10.5||Gentle breeze||16.5||Significant breeze|
|Mar||9.1||Gentle breeze||15.3||Strong breeze|
|Apr||9.3||Gentle breeze||15.3||Significant breeze|
|May||9.7||Gentle breeze||15.7||Strong breeze|
|Jun||9.8||Gentle breeze||15.8||Significant breeze|
|Jul||8.8||Gentle breeze||15||Strong breeze|
|Aug||8.4||Gentle breeze||14.6||Significant breeze|
|Sep||8.5||Gentle breeze||14.3||Strong breeze|
|Oct||8.7||Gentle breeze||14.6||Significant breeze|
|Nov||9.8||Gentle breeze||15.6||Strong breeze|
|Dec||12.4||Significant breeze||19.1||Strong breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Calais?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for France; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 24, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Calais, France is July, followed by June and February. 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 Calais in March. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Calais Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 64.7°F (18.2°C) and 50°F (10°C) with warmer temperatures in the later months. Rain is somewhat common with roughly 4 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see moderate precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Calais, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 68.6°F (20.3°C) and 50.4°F (10.2°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 3 to 10 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 Calais to be enjoyable for warm weather travelers. The average high during this season is between 52.3°F (11.3°C) and 40.5°F (4.7°C). On average, it rains or snows a fair amount: 7 to 10 times per month. These times of year are the second busiest with tourists.