The best times to visit Belfast for ideal weather are

June 4th 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.

 

 


Other Belfast Travel Info

Weather in Belfast

Temperature

Average temperatures in Belfast vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 20th 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 Belfast, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 77.6°F (25.3°C) with temperatures rarely dropping below 60°F (15.6°C) at night.

Belfast Temperatures (Fahrenheit)

Key
High
Average
Low

Belfast 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.

Belfast Perceived Temperature (F)

Key
High
Average
Low

Belfast Perceived Temperature (C)

Key
High
Average
Low

 

Average Belfast 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 29.3 20.8 13.1
Feb 28.3 20.1 12.5
Mar 35.2 27.1 19.5
Apr 48.1 38.3 29.8
May 60.1 49.2 40.2
Jun 67.9 57.7 49.2
Jul 76.8 67.1 59.1
Aug 75.8 66.5 58.6
Sep 68.7 59.4 50.8
Oct 56.5 48.8 41.3
Nov 46.8 39.1 32
Dec 36.2 29.1 22.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -1.5 -6.2 -10.5
Feb -2.1 -6.6 -10.8
Mar 1.8 -2.7 -6.9
Apr 8.9 3.5 -1.2
May 15.6 9.6 4.6
Jun 19.9 14.3 9.6
Jul 24.9 19.5 15.1
Aug 24.3 19.2 14.8
Sep 20.4 15.2 10.4
Oct 13.6 9.3 5.2
Nov 8.2 3.9 0
Dec 2.3 -1.6 -5.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Belfast are July, May, and then April. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid April. For example, on the week of April 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 3 days of significant precipitation the week of December 24th.

When can you find snow in Belfast? Weather stations report very large amounts of snow likely to be deepest around February, especially close to late February and early March. The best time to ski (if at all) in Belfast is often around around March 26th when fresh powder is deepest. 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 Belfast.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Belfast (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 29% 9.5 4
Feb 31% 17.2 4.5
Mar 26% 15.3 3.6
Apr 24% 11.7 3.3
May 24% 1.3 3.3
Jun 26% 0 3.5
Jul 23% 0 2.9
Aug 24% 0 5.3
Sep 24% 0 4.7
Oct 29% 0.4 5.1
Nov 32% 2.7 5
Dec 42% 6.7 7.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 29 24.1 10.2
Feb 31 43.7 11.4
Mar 26 38.9 9.1
Apr 24 29.7 8.4
May 24 3.3 8.4
Jun 26 0 8.9
Jul 23 0 7.4
Aug 24 0 13.5
Sep 24 0 11.9
Oct 29 1 13
Nov 32 6.9 12.7
Dec 42 17 18.3

 

Humidity and Wind

Belfast has some very humid months, and above average humidity throughout the year. The least humid month is March (64.3% relative humidity), and the most humid month is December (74.6%).

Wind in Belfast is usually moderate. The windiest month is March, followed by December and January. March’s average wind speed of around 9.9 knots (11.4 MPH or 18.3 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 late December where average top sustained speeds reach 17.6 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 9.6 Gentle breeze 16.6 Significant breeze
Feb 9.2 Gentle breeze 16 Significant breeze
Mar 9.9 Gentle breeze 16.3 Significant breeze
Apr 9.4 Gentle breeze 15.7 Significant breeze
May 8.9 Gentle breeze 15.1 Significant breeze
Jun 7.9 Gentle breeze 13.5 Significant breeze
Jul 7.9 Gentle breeze 13.3 Significant breeze
Aug 7.4 Gentle breeze 12.8 Significant breeze
Sep 8.3 Gentle breeze 14.3 Significant breeze
Oct 8.7 Gentle breeze 15.2 Significant breeze
Nov 9.1 Gentle breeze 15.5 Significant breeze
Dec 9.8 Gentle breeze 16.9 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 68.9%
Feb 69%
Mar 64.3%
Apr 66%
May 67.8%
Jun 72.9%
Jul 71.8%
Aug 73.7%
Sep 73.5%
Oct 72.3%
Nov 71.2%
Dec 74.6%

 

Is it Safe to Travel to Belfast?

#N/A


 

The Busiest and Least Crowded Months

The busiest month for tourism in Belfast, PE, Canada is July, followed by August 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 Belfast in December. 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 51.6 in December means 51.6% of the tourists vs. July.

 

 

Overall Belfast Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 63.7°F (17.6°C) and 31.1°F (-0.5°C) with far warmer temperatures in the later months. Rain is somewhat common with 7 to 8 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 very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with 7 to 8 days of precipitation per month. June – August is the busiest season for tourism in Belfast, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 72.3°F (22.4°C) and 42°F (5.6°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 10 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 far too cold this time of year in Belfast to be enjoyable for warm weather travelers. The average high during this season is between 40.1°F (4.5°C) and 23.4°F (-4.8°C). On average, it rains or snows a great amount: 9 to 13 times per month. These times of year are the slowest with tourists.

 

Best Times to Travel› Canada › Belfast, PE, Canada