The best times to visit Sundsvall for ideal weather are

June 11th to September 2nd

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



Other Sundsvall Travel Info

Weather in Sundsvall


Average temperatures in Sundsvall vary greatly. Considering humidity, temperatures feel cold for most of the year with a low chance of precipitation most of the year. The area is less temperate than some — in the 33rd 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 Sundsvall, 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 67.4°F (19.7°C) with temperatures rarely dropping below 58.9°F (14.9°C) at night.

Sundsvall Temperatures (Fahrenheit)


Sundsvall 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.

Sundsvall Perceived Temperature (F)


Sundsvall Perceived Temperature (C)



Average Sundsvall 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 31.6 27.6 23.4
Feb 30.3 25.7 20.9
Mar 37.1 32.4 27.9
Apr 44.7 38.7 34
May 51.6 45.7 41.2
Jun 59.9 54 49.5
Jul 66.4 61.1 56.8
Aug 64.9 60 56
Sep 57.7 53 48.5
Oct 47.8 43.6 39.7
Nov 40.1 36.6 33.2
Dec 34 29.9 25.6

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -0.2 -2.4 -4.8
Feb -0.9 -3.5 -6.2
Mar 2.8 0.2 -2.3
Apr 7.1 3.7 1.1
May 10.9 7.6 5.1
Jun 15.5 12.2 9.7
Jul 19.1 16.2 13.8
Aug 18.3 15.6 13.3
Sep 14.3 11.7 9.2
Oct 8.8 6.4 4.3
Nov 4.5 2.6 0.7
Dec 1.1 -1.2 -3.6



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sundsvall are February, March, 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 early to mid February. For example, on the week of February 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late August to early September with an average of 2 days of significant precipitation the week of August 27th.

When can you find snow in Sundsvall? 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 Sundsvall.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 16% 0 1.4
Feb 8% 0 0.7
Mar 8% 0 0.7
Apr 9% 0 0.8
May 12% 0 1.4
Jun 15% 0 2
Jul 18% 0 2.3
Aug 19% 0 2.5
Sep 16% 0 2.6
Oct 15% 0 1.8
Nov 16% 0 1.6
Dec 15% 0 1.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 16 0 3.6
Feb 8 0 1.8
Mar 8 0 1.8
Apr 9 0 2
May 12 0 3.6
Jun 15 0 5.1
Jul 18 0 5.8
Aug 19 0 6.4
Sep 16 0 6.6
Oct 15 0 4.6
Nov 16 0 4.1
Dec 15 0 4.6


Humidity and Wind

Sundsvall has some extremely humid months, and above average humidity throughout the year. The least humid month is April (69.5% relative humidity), and the most humid month is November (83.1%).

Wind in Sundsvall is usually moderate. The windiest month is January, followed by December and October. January’s average wind speed of around 12.6 knots (14.4 MPH or 23.3 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 early January where average top sustained speeds reach 21 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 12.6 Significant breeze 19.1 Strong breeze
Feb 10.8 Gentle breeze 16.9 Significant breeze
Mar 10.9 Gentle breeze 17.4 Strong breeze
Apr 10 Gentle breeze 16.5 Significant breeze
May 8.7 Gentle breeze 14.7 Strong breeze
Jun 9.1 Gentle breeze 14.9 Significant breeze
Jul 9.1 Gentle breeze 15.1 Strong breeze
Aug 9.2 Gentle breeze 14.8 Significant breeze
Sep 9.9 Gentle breeze 16 Strong breeze
Oct 10.9 Gentle breeze 16.9 Significant breeze
Nov 10.9 Gentle breeze 16.8 Strong breeze
Dec 11.7 Significant breeze 18 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 81%
Feb 76.4%
Mar 69.5%
Apr 69.5%
May 71.6%
Jun 71.5%
Jul 75.7%
Aug 76.9%
Sep 75.6%
Oct 76.1%
Nov 83.1%
Dec 81.5%


Is it Safe to Travel to Sundsvall?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Sweden; 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 Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Sundsvall, Sweden is May, followed by September and July. 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 Sundsvall 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

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 66.3 in March means 66.3% of the tourists vs. May.



Overall Sundsvall Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 56.2°F (13.4°C) and 35.1°F (1.7°C) with warmer temperatures in the later months. Rain is rare with 2 to 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 brisk. These months see the most precipitation with 5 to 6 days of precipitation per month. June – August is the busiest season for tourism in Sundsvall, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 60.6°F (15.9°C) and 36.6°F (2.6°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: approximately 5 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.

Winter (December through February)

Weather is far too cold this time of year in Sundsvall to be enjoyable for warm weather travelers. The average high during this season is between 36°F (2.2°C) and 28.9°F (-1.7°C). On average, it rains or snows a fair amount: 2 to 5 times per month. These times of year are the slowest with tourists.


Best Times to TravelSweden › Sundsvall, Sweden