The best times to visit St Johns for ideal weather are

June 25th to September 23rd

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



Other St Johns Travel Info

Weather in St Johns


Average temperatures in St Johns vary drastically. 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 St Johns, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally mid August where highs are regularly around 74.1°F (23.4°C) with temperatures rarely dropping below 55.2°F (12.9°C) at night.

St Johns Temperatures (Fahrenheit)


St Johns 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.

St Johns Perceived Temperature (F)


St Johns Perceived Temperature (C)



Average St Johns 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 34.9 27.2 19.9
Feb 31.8 24.9 18.6
Mar 35.1 27.2 19.8
Apr 45.4 36 28.2
May 55.4 44.6 36.3
Jun 60.3 50 41.8
Jul 72.3 61.6 52.6
Aug 71.4 62.2 54.6
Sep 66.3 56.7 47.7
Oct 56.1 47.7 40
Nov 45.4 38.6 32
Dec 37.7 31.4 25.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 1.6 -2.7 -6.7
Feb -0.1 -3.9 -7.4
Mar 1.7 -2.7 -6.8
Apr 7.4 2.2 -2.1
May 13 7 2.4
Jun 15.7 10 5.4
Jul 22.4 16.4 11.4
Aug 21.9 16.8 12.6
Sep 19.1 13.7 8.7
Oct 13.4 8.7 4.4
Nov 7.4 3.7 0
Dec 3.2 -0.3 -3.6



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in St Johns are August, September, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early March. For example, on the week of March 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 3 days of significant precipitation the week of December 17th.

When can you find snow in St Johns? Weather stations report very large amounts of snow likely to be deepest around March, especially close to early March. The best time to ski (if at all) in St Johns is often around around February 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 St Johns.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in St Johns (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 37% 10.3 5.5
Feb 32% 11.5 4.5
Mar 26% 14.2 2.8
Apr 25% 10.3 3.8
May 21% 0 3.4
Jun 21% 0 2.9
Jul 23% 0 2.9
Aug 20% 0 3.5
Sep 21% 0 4.5
Oct 34% 0 5.4
Nov 30% 0 4.2
Dec 34% 8.1 5.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 37 26.2 14
Feb 32 29.2 11.4
Mar 26 36.1 7.1
Apr 25 26.2 9.7
May 21 0 8.6
Jun 21 0 7.4
Jul 23 0 7.4
Aug 20 0 8.9
Sep 21 0 11.4
Oct 34 0 13.7
Nov 30 0 10.7
Dec 34 20.6 13.2


Humidity and Wind

St Johns has some very humid months, and high humidity throughout the year. The least humid month is March (71.8% relative humidity), and the most humid month is October (77.7%).

Wind in St Johns is usually moderate. The windiest month is February, followed by March and January. February’s average wind speed of around 10.1 knots (11.6 MPH or 18.7 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 early to mid February where average top sustained speeds reach 17.4 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 9.4 Gentle breeze 14.3 Significant breeze
Feb 10.1 Gentle breeze 15.2 Significant breeze
Mar 9.4 Gentle breeze 13.7 Significant breeze
Apr 8.9 Gentle breeze 12.9 Significant breeze
May 7.6 Gentle breeze 11.7 Significant breeze
Jun 6.9 Light breeze 10.8 Gentle breeze
Jul 7.6 Gentle breeze 11.1 Significant breeze
Aug 7.1 Gentle breeze 10.7 Gentle breeze
Sep 7.6 Gentle breeze 12 Significant breeze
Oct 7.9 Gentle breeze 12.3 Significant breeze
Nov 8.8 Gentle breeze 13.2 Significant breeze
Dec 9 Gentle breeze 13.3 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 77%
Feb 75.3%
Mar 71.8%
Apr 72.2%
May 74.9%
Jun 77.2%
Jul 73%
Aug 77.2%
Sep 76%
Oct 77.7%
Nov 75.7%
Dec 76.8%


Is it Safe to Travel to St Johns?

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 St Johns, 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 St Johns 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 St Johns Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 62°F (16.7°C) and 30.1°F (-1.1°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 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in St Johns, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 69.4°F (20.8°C) and 41.8°F (5.4°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 St Johns to be enjoyable for warm weather travelers. The average high during this season is between 41.7°F (5.4°C) and 28.7°F (-1.8°C). On average, it rains or snows a great amount: 9 to 12 times per month. These times of year are the slowest with tourists.


Best Times to TravelCanada › St Johns, NL, Canada