Sundsvall weather by month

Check out Sundsvall weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Sundsvall (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	23	27	34	43	54	64	68	64	55	46	34	27
Min temperature (night-time)	9	9	18	27	36	45	50	48	41	34	23	12
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0
Sea temperature	30	30	30	30	34	48	59	61	54	46	39	32

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Sundsvall

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	1	1	3	5	8	9	8	6	4	3	1	1
Daily hours of daylight	6	9	12	15	18	20	19	16	13	10	7	5
UV Index (Maximum)	0	0	1	2	4	5	5	4	2	1	0	0

Rainfall in Sundsvall

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	16	13	13	11	11	11	14	14	15	15	15	16
Average monthly rainfall (inches)	1.9	1.5	1.5	1.7	1.7	2.0	2.8	3.1	3.0	2.4	2.8	2.4

More about Sundsvall

Sundsvall by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Sweden

Fred Olsen sale: £200pp off 2025/2026 cruises

Sale

Save up to £200 per person on cruises in 2025/2026
Book online in the Fred Olsen Black Friday sale
Travel before 31st December 2026 (inclusive)

Go to Fred Olsen deal >>

Expires at 23:59 on Monday 1st Dec 2025 · View all Fred Olsen offers

Cruise deal finder

Destination

The climate guide for Sweden (Sundsvall) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Sundsvall?

Sundsvall has a cold climate with warm summers and some rainfall in all months.

Sundsvall weather in January

Expect daytime maximum temperatures of 23°F in Sundsvall, Sweden in January based on long-term weather averages. There is 1 hour of sunshine per day on average with 16 days with some rainfall and typically 1.9 inches of rainfall in the month, which might fall as snow.

23
23°F max day temperature
1
1 hour of sunshine per day
16
16 days with some rainfall
9
9°F min night temperature
6
6 hours of daylight per day
0
No heat & humidity
1.9
1.9 inches of monthly rainfall
0
No UV (Maximum) Index UV index
30
30°F sea temperature

Back to months

Sundsvall weather in February

Expect daytime maximum temperatures of 27°F in Sundsvall, Sweden in February based on long-term weather averages. There is 1 hour of sunshine per day on average with 13 days with some rainfall, which might fall as snow.

27
27°F max day temperature
1
1 hour of sunshine per day
13
13 days with some rainfall
9
9°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
1.5
1.5 inches of monthly rainfall
0
No UV (Maximum) Index UV index
30
30°F sea temperature

Back to months

Sundsvall weather in March

Expect daytime maximum temperatures of 34°F in Sundsvall, Sweden in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 13 days with some rainfall, which might fall as snow.

34
34°F max day temperature
3
3 hours of sunshine per day
13
13 days with some rainfall
18
18°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
1.5
1.5 inches of monthly rainfall
1
1 (Low) UV index
30
30°F sea temperature

Back to months

Sundsvall weather in April

Expect daytime maximum temperatures of 43°F in Sundsvall, Sweden in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 1.7 inches of rainfall in the month.

43
43°F max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
27
27°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
1.7
1.7 inches of monthly rainfall
2
2 (Low) UV index
30
30°F sea temperature

Back to months

Sundsvall weather in May

Expect daytime maximum temperatures of 54°F in Sundsvall, Sweden in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 1.7 inches of rainfall in the month.

54
54°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
36
36°F min night temperature
18
18 hours of daylight per day
0
No heat & humidity
1.7
1.7 inches of monthly rainfall
4
4 (Moderate) UV index
34
34°F sea temperature

Back to months

Sundsvall weather in June

Expect daytime maximum temperatures of 64°F in Sundsvall, Sweden in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 2.0 inches of rainfall in the month.

64
64°F max day temperature
9
9 hours of sunshine per day
11
11 days with some rainfall
45
45°F min night temperature
20
20 hours of daylight per day
0
No heat & humidity
2.0
2.0 inches of monthly rainfall
5
5 (Moderate) UV index
48
48°F sea temperature

Back to months

Sundsvall weather in July

Expect daytime maximum temperatures of 68°F in Sundsvall, Sweden in July based on long-term weather averages. There are 8 hours of sunshine per day on average with 14 days with some rainfall and typically 2.8 inches of rainfall in the month.

68
68°F max day temperature
8
8 hours of sunshine per day
14
14 days with some rainfall
50
50°F min night temperature
19
19 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
5
5 (Moderate) UV index
59
59°F sea temperature

Back to months

Sundsvall weather in August

Expect daytime maximum temperatures of 64°F in Sundsvall, Sweden in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 3.1 inches of rainfall in the month.

64
64°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
48
48°F min night temperature
16
16 hours of daylight per day
0
No heat & humidity
3.1
3.1 inches of monthly rainfall
4
4 (Moderate) UV index
61
61°F sea temperature

Back to months

Sundsvall weather in September

Expect daytime maximum temperatures of 55°F in Sundsvall, Sweden in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 3.0 inches of rainfall in the month.

55
55°F max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
41
41°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
3.0
3.0 inches of monthly rainfall
2
2 (Low) UV index
54
54°F sea temperature

Back to months

Sundsvall weather in October

Expect daytime maximum temperatures of 46°F in Sundsvall, Sweden in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 2.4 inches of rainfall in the month.

46
46°F max day temperature
3
3 hours of sunshine per day
15
15 days with some rainfall
34
34°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
2.4
2.4 inches of monthly rainfall
1
1 (Low) UV index
46
46°F sea temperature

Back to months

Sundsvall weather in November

Expect daytime maximum temperatures of 34°F in Sundsvall, Sweden in November based on long-term weather averages. There is 1 hour of sunshine per day on average with 15 days with some rainfall and typically 2.8 inches of rainfall in the month, which might fall as snow.

34
34°F max day temperature
1
1 hour of sunshine per day
15
15 days with some rainfall
23
23°F min night temperature
7
7 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
0
No UV (Maximum) Index UV index
39
39°F sea temperature

Back to months

Sundsvall weather in December

Expect daytime maximum temperatures of 27°F in Sundsvall, Sweden in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 16 days with some rainfall and typically 2.4 inches of rainfall in the month, which might fall as snow.

27
27°F max day temperature
1
1 hour of sunshine per day
16
16 days with some rainfall
12
12°F min night temperature
5
5 hours of daylight per day
0
No heat & humidity
2.4
2.4 inches of monthly rainfall
0
No UV (Maximum) Index UV index
32
32°F sea temperature

Back to months