The best times to visit Port Union for ideal weather are

July 2nd to September 16th

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



Other Port Union Travel Info

Weather in Port Union


Average temperatures in Port Union vary greatly. Considering humidity, temperatures feel cold for most of the year with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 17th 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 Port Union, 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 70.9°F (21.6°C) with temperatures rarely dropping below 55.9°F (13.3°C) at night.

Port Union Temperatures (Fahrenheit)


Port Union Temperatures (Celsius)


“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.

Port Union Perceived Temperature (F)


Port Union Perceived Temperature (C)



Average Port Union 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 32.5 26 20
Feb 30.7 25.1 19.6
Mar 33.6 27.2 21.4
Apr 42.1 34.8 28.9
May 50.5 41.7 35.2
Jun 58.6 48.9 42
Jul 70.2 59.8 52.4
Aug 69.7 61.2 55.3
Sep 63.9 55.8 49
Oct 52.7 46.6 41.3
Nov 45.2 39.2 33.8
Dec 36.1 30.7 25.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.3 -3.3 -6.7
Feb -0.7 -3.8 -6.9
Mar 0.9 -2.7 -5.9
Apr 5.6 1.6 -1.7
May 10.3 5.4 1.8
Jun 14.8 9.4 5.6
Jul 21.2 15.4 11.3
Aug 20.9 16.2 12.9
Sep 17.7 13.2 9.4
Oct 11.5 8.1 5.2
Nov 7.3 4 1
Dec 2.3 -0.7 -3.6



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Port Union are July, April, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early July. For example, on the week of July 2nd there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid February with an average of 3 days of significant precipitation the week of February 12th.

When can you find snow in Port Union? Weather stations report very large amounts of snow likely to be deepest around April, especially close to mid March. The best time to ski (if at all) in Port Union is often around around March 19th 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 Port Union.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 30% 9 4.2
Feb 36% 10.2 4
Mar 27% 15 5
Apr 19% 15.5 2.4
May 26% 0.5 3.8
Jun 19% 0 2.5
Jul 17% 0 2.6
Aug 20% 0 3.3
Sep 20% 0.7 4.2
Oct 31% 0.4 4.9
Nov 33% 0.9 4.8
Dec 27% 2.9 3.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 30 22.9 10.7
Feb 36 25.9 10.2
Mar 27 38.1 12.7
Apr 19 39.4 6.1
May 26 1.3 9.7
Jun 19 0 6.4
Jul 17 0 6.6
Aug 20 0 8.4
Sep 20 1.8 10.7
Oct 31 1 12.4
Nov 33 2.3 12.2
Dec 27 7.4 8.9


Humidity and Wind

Port Union has some very humid months, and high humidity throughout the year. The least humid month is April (75.2% relative humidity), and the most humid month is August (79.8%).

Wind in Port Union is usually stronger than many places. The windiest month is December, followed by January and February. December’s average wind speed of around 20.2 knots (23.2 MPH or 37.3 KPH) is considered “a fresh breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 31.9 knots, which is considered high wind or moderate gale winds.

Relative Humidity (%)

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

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

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 20.1 Strong breeze 30.2 Moderate gale winds
Feb 19.1 Strong breeze 29.4 Moderate gale winds
Mar 15.5 Significant breeze 27.8 Moderate gale winds
Apr 14.9 Significant breeze 23.8 Very strong breeze
May 14.3 Significant breeze 22.1 Moderate gale winds
Jun 12.6 Significant breeze 20.3 Strong breeze
Jul 13.1 Significant breeze 20.2 Moderate gale winds
Aug 12.6 Significant breeze 19.6 Strong breeze
Sep 15.4 Significant breeze 23.4 Moderate gale winds
Oct 17.4 Strong breeze 26.8 Very strong breeze
Nov 18.9 Strong breeze 27.6 Moderate gale winds
Dec 20.2 Strong breeze 29.2 Moderate gale winds

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 75.3%
Feb 76.8%
Mar 76.2%
Apr 75.2%
May 78.7%
Jun 78.6%
Jul 76.1%
Aug 79.8%
Sep 75.7%
Oct 78%
Nov 75.9%
Dec 75.8%


Is it Safe to Travel to Port Union?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Canada; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 07, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Port Union, NL, 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 Port Union 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

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 Port Union Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel very cold. Highs range from 54.3°F (12.4°C) and 32°F (0°C) with warmer temperatures in the later months. Rain is somewhat common with 6 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 comfortably cool weather with high temperatures that are comfortable. These months see the least precipitation with 5 to 6 days of precipitation per month. June – August is the busiest season for tourism in Port Union, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 66.6°F (19.2°C) and 42.3°F (5.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 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 Port Union to be enjoyable for warm weather travelers. The average high during this season is between 40.2°F (4.6°C) and 27.9°F (-2.3°C). On average, it rains or snows a fair amount: 8 to 10 times per month. These times of year are the slowest with tourists.


Best Times to TravelCanada › Port Union, NL, Canada