Measurements:
°C
°F
CURRENT WEATHER
00:01
Sundsvall
54°F
NE 4 mph
Feels like: 52°F
Precip: 50%
World Resorts Sweden Sundsvall Weather

7 Day Weather Forecast

09.29
tue
DAY
56°F
SE 9 mph
precip
15%
NIGHT
46°F
SE 3 mph
precip
19%
09.30
wed
DAY
56°F
W 7 mph
precip
14%
NIGHT
52°F
W 2 mph
precip
43%
10.01
thu
DAY
54°F
N 5 mph
precip
29%
NIGHT
52°F
N 3 mph
precip
39%
10.02
fri
DAY
54°F
N 6 mph
precip
19%
NIGHT
50°F
NE 4 mph
precip
33%
10.03
sat
DAY
58°F
E 8 mph
precip
7%
NIGHT
46°F
NE 2 mph
precip
31%
10.04
sun
DAY
58°F
NE 9 mph
precip
17%
NIGHT
46°F
E 2 mph
precip
28%
10.05
mon
DAY
54°F
E 2 mph
precip
18%
NIGHT
46°F
E 2 mph
precip
22%

Sundsvall Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Sundsvall was 14.0°F. The maximum and minimum values were 11.2°F and 16.0°F respectively.

Sundsvall on the Weather Map

Best Time to Visit Sundsvall
The most sunny months:
July 12 days
June 11 days
May 10 days
The most warm months:
July 69.9 °F
August 67.0 °F
June 64.6 °F
Warmest sea temperature:
August 63.3 °F
July 62.8 °F
September 56.8 °F
The most cold months:
January 20.7 °F
February 24.2 °F
December 25.8 °F
The most rainy months:
August 4 days
July 3 days
October 3 days
The most windy months:
March 7 mph
April 7 mph
June 7 mph
more details