17.05
sun
sun
Day
54°F
N 11 mph
Precip.
100%
100%
Night
43°F
NE 4 mph
Precip.
0%
0%
18.05
mon
mon
Day
61°F
N 6 mph
Precip.
0%
0%
Night
41°F
SW 2 mph
Precip.
0%
0%
19.05
tue
tue
Day
50°F
S 6 mph
Precip.
100%
100%
Night
46°F
E 5 mph
Precip.
0%
0%
20.05
wed
wed
Day
64°F
NE 6 mph
Precip.
0%
0%
Night
50°F
NE 4 mph
Precip.
0%
0%
21.05
thu
thu
Day
55°F
N 7 mph
Precip.
0%
0%
Night
50°F
NE 5 mph
Precip.
0%
0%
22.05
fri
fri
Day
59°F
SE 15 mph
Precip.
0%
0%
Night
48°F
SE 16 mph
Precip.
0%
0%
23.05
sat
sat
Day
59°F
SE 11 mph
Precip.
0%
0%
Night
52°F
SE 7 mph
Precip.
0%
0%
24.05
sun
sun
Day
63°F
SE 9 mph
Precip.
0%
0%
Night
52°F
SE 7 mph
Precip.
0%
0%
25.05
mon
mon
Day
64°F
SE 7 mph
Precip.
0%
0%
Night
50°F
SE 5 mph
Precip.
0%
0%
26.05
tue
tue
Day
70°F
SE 10 mph
Precip.
0%
0%
Night
57°F
SE 6 mph
Precip.
0%
0%
27.05
wed
wed
Day
75°F
SE 7 mph
Precip.
0%
0%
Night
59°F
SE 3 mph
Precip.
0%
0%
28.05
thu
thu
Day
75°F
N 2 mph
Precip.
0%
0%
Night
57°F
SE 5 mph
Precip.
0%
0%
29.05
fri
fri
Day
68°F
E 6 mph
Precip.
0%
0%
Night
48°F
NW 2 mph
Precip.
45%
45%
30.05
sat
sat
Day
61°F
NW 7 mph
Precip.
0%
0%
Night
54°F
NW 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| Sundsvall |
monthly
weather
weather
| Sundsvall |
current
weather
weather
| Sundsvall |
7 days
forecast
forecast
| Sundsvall |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 42.6°F. The highest and lowest sea temperatures during the month were 45.0°F and 40.8°F.
Air temperature in Sundsvall, °F
Precipitation total in Sundsvall, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sundsvall
Sundsvall on a weather map
Places in Sweden:
Name
°F
24 Hours Forecast
Sundsvall
Local time: 07:36
May 17, sunday
0900
50°F
NW
6 mph
6 mph
1200
54°F
N
11 mph
11 mph
1500
54°F
NE
8 mph
8 mph
1800
54°F
N
7 mph
7 mph
2100
48°F
N
5 mph
5 mph
May 18, monday
0000
43°F
NE
4 mph
4 mph
0300
41°F
E
2 mph
2 mph
0600
46°F
E
1 mph
1 mph
