The highest day temperature in July 2023 was 76°F. The lowest night temperature was 45°F. The average values for day and night temperatures during July were 66.0°F и 55.4°F respectivly.

The average sea surface temperature in July 2023 for Sundsvall was 65.6°F. The maximum and minimum values were 63.4°F and 68.4°F respectively.

You can expect various weather conditions during July. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in July for Sundsvall is 2.0 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 6.5 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sundsvall in July is 10.9 hours.