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Sundsvall in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Sundsvall in August will be like? Take a look at our weather guide for Sundsvall, based on historical data.
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August

Weather in Sundsvall in August 2024

OK Weather
Mild
☁️
Cloudy
Sundsvall in August usually sees fair weather conditions, with an average daily high temperature of +66°F and roughly 5 sunny days. However, you should prepare for about 9 rainy days with an average precipitation of 78 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+66°F
Avg. max. temperature
+37°F
Min.
+86°F
Max.
78 mm
Total precipitation
77%
Avg. humidity
2 m/s
Avg. wind
5 ☀️
Sunny Days
17 ⛅️
Cloudy
9 🌦
Rainy
Our opinion: Sundsvall has OK weather in August.

Average temperature in Sundsvall in August

Here are the expected maximum, average and minimum temperatures in Sundsvall for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +77°F during the day to a minimum of +45°F during the night, the temperature in August averages around +68°F.

The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +68°F to +59°F.

Is Sundsvall warm or cold in August?

Sundsvall is typically mild in August.

Maximum temperatures go down compared to the previous month from +70°F to +66°F. The minimum temperature also goes down from +54°F to +52°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

August is one of the warmest months in Sundsvall, here is the comparison with other months:

Climate in Sundsvall in August

Sundsvall weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+70°F+66°F+57°F
Min. temperature
+41°F+37°F+28°F
Max. temperature
+90°F+86°F+77°F
Rainfall
72 mm78 mm59 mm
Wind
2 m/s2 m/s2 m/s
Humidity
71%77%80%
Air pressure
1010 HPa1010 HPa1010 HPa
Sunny days
655
Cloudy days
161718
Rainy days
997
Snowy days
000

August typically has worse weather conditions compared to July. It’s getting colder in August. From +70°F in the day, the average maximum temperature lowers to +66°F. Prepare for more rain. Average rainfall goes from 72 mm to 78 mm. Humidity rises from 71% to 77%. The average wind speed doesn’t change much during August, staying around 2 m/s. The days becoming less sunny, going from 6 sunny days in July to 5 in August.

September brings much the same weather, it remains ok.

Wind

Wind speed in Sundsvall in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Sundsvall is gradually increasing during August, going from 2 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Sundsvall based on historical data.
Last Year
Historical Data
Typically, there is a 39% chance of rain on an average day in August, with total rainfall of approximately 95 mm. The maximum amount of rainfall per day is around 27 mm, which is moderate rain. August is a pretty wet month with over 12 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
August is one of the rainiest months in Sundsvall, here is a comparison with other months, total mm:
Sundsvall wettest month is August, where a typical day has a 29% chance of precipitation and 78 mm of rainfall per day. February, on the other hand, is the driest month with a mere 0% chance of precipitation and 2 mm of rainfall per day.

How was the weather last August in Sundsvall?

This is the weather in Sundsvall in August 2023:
1 August
🌧️
+68°F
2 August
☀️
+67°F
3 August
☁️
+69°F
4 August
☀️
+74°F
5 August
☁️
+68°F
6 August
🌧️
+56°F
7 August
☁️
+64°F
8 August
☀️
+68°F
9 August
☁️
+73°F
10 August
☀️
+74°F
11 August
☀️
+72°F
12 August
☁️
+69°F
13 August
☁️
+73°F
14 August
☁️
+71°F
15 August
☁️
+73°F
16 August
☀️
+77°F
17 August
☁️
+73°F
18 August
☁️
+61°F
19 August
☁️
+68°F
20 August
🌧️
+69°F
21 August
☁️
+70°F
22 August
☀️
+69°F
23 August
☁️
+68°F
24 August
☀️
+69°F
25 August
☀️
+71°F
26 August
☁️
+69°F
27 August
☁️
+66°F
28 August
☁️
+64°F
29 August
☀️
+63°F
30 August
☀️
+60°F
31 August
☀️
+59°F
In August 2023 Sundsvall had 12 sunny days, 16 cloudy days, and 3 rainy days. The average maximum temperature was +68°F, with an absolute maximum of +77°F and a minimum of +57°F. The average humidity was 77%, with a maximum of 100% and a minimum of 27%. The average wind speed was 3 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change Over the Years

This is how Sundsvall climate has changed over the last 43 years.

The climate in Sundsvall in August has not changed that much over the last 43 years.

The average temperature was the lowest in 1986 (+59°F) and the highest in 2002 (+76°F). The driest year was 1983 with only 24 mm of rainfall, and the wettest year was 1986 with 182 mm.

FAQ

Frequently asked questions about the weather in Sundsvall in August:

Is August a good time to visit Sundsvall?

It’s always a good time to visit Sundsvall, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Sundsvall in August?

August has mild temperatures in Sundsvall. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Sundsvall rainy in August?

Sundsvall is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Sundsvall in August?

Usually, it’s not very sunny in Sundsvall in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Sweden

Check out the weather for other cities in Sweden.

Monthly weather in Sundsvall

Source of the data

For this page, we’ve looked at the typical weather in Sundsvall, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.