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Hourly Forecast
Daylight Hours
06:28
Sunrise
19:02
Sunset
Moon
Waxing Crescent
13:08
Moonrise
18:42
Moonset
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Weather in Sundsvall today, September 15, 2026
Sundsvall looks damp on September 15, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.
The day peaks near 13°C and cools toward 9°C. Relative humidity sits between 90% and 95%, reaching its peak around 20:00. Expect gentle winds, highest near 16:00 at 3.4 km/h.
The second half of the day still looks unsettled, with rain probability around 98% by 13:00. Dense cloud near 100% at 13:00 keeps the feel grey. Visibility stays generally good near 15.6 km on average, though it can drop toward 8.0 km in thicker cloud or showers. The sun rises at 06:28 and sets at 19:02, for a total of 12 hours 33 minutes of sunlight today.
In short, treat September 15, 2026 in Sundsvall as a damp day: pack covers, watch the wetter hours, and expect a high near 13°C.
Frequently asked questions about weather in Sundsvall
How warm does it get in Sundsvall?
The warmest month in Sundsvall is July, with average high temperatures of 21°C. The average temperature during this period is around 16°C.
How cold does it get in Sundsvall?
The coldest month in Sundsvall is January, with average low temperatures of -8°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Sundsvall?
The wettest month in Sundsvall is August, with an average of 84mm of precipitation.
What is the driest time of year in Sundsvall?
The driest month in Sundsvall is April, with an average of 34mm of precipitation.
