Sundsvall Weather in August
Average highs run from 20°C on August 1 to 16°C on August 31, and lows from 13°C to 10°C. Normal precipitation for the month is 96 mm over about 16 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 18°C
- Average low
- 11°C
- Precipitation
- 96 mm
- Reanalysis high
- 27°CAug 5, 2006
- Reanalysis low
- 5°CAug 31, 2007
- Daylight
- 17 h 26 min to 14 h 29 min
- Cloud cover
- 66%
- Humidity
- 85%
- Dew point
- 12°C
- Wind
- 9.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 20°C | 13°C | 25°C 2018 | 8°C 2019 | 46% |
| Aug 2 | 20°C | 13°C | 26°C 2018 | 7°C 2001 | 47% |
| Aug 3 | 20°C | 13°C | 24°C 1999 | 7°C 2001 | 47% |
| Aug 4 | 20°C | 13°C | 27°C 2006 | 9°C 1996 | 47% |
| Aug 5 | 19°C | 13°C | 27°C 2006 | 9°C 2008 | 47% |
| Aug 6 | 19°C | 12°C | 24°C 2006 | 8°C 2008 | 48% |
| Aug 7 | 19°C | 12°C | 26°C 2004 | 7°C 1999 | 47% |
| Aug 8 | 19°C | 12°C | 26°C 2004 | 7°C 1999 | 46% |
| Aug 9 | 19°C | 12°C | 24°C 2018 | 7°C 1992 | 45% |
| Aug 10 | 19°C | 12°C | 27°C 2004 | 7°C 2016 | 45% |
| Aug 11 | 19°C | 12°C | 25°C 2003 | 7°C 2016 | 44% |
| Aug 12 | 19°C | 12°C | 23°C 2002 | 7°C 2016 | 44% |
| Aug 13 | 19°C | 12°C | 22°C 2006 | 8°C 1999 | 44% |
| Aug 14 | 18°C | 12°C | 24°C 2002 | 8°C 2009 | 44% |
| Aug 15 | 18°C | 11°C | 23°C 2002 | 8°C 1993 | 45% |
| Aug 16 | 18°C | 11°C | 24°C 2001 | 8°C 2008 | 45% |
| Aug 17 | 18°C | 11°C | 24°C 2015 | 8°C 1999 | 44% |
| Aug 18 | 18°C | 11°C | 24°C 2002 | 9°C 1993 | 43% |
| Aug 19 | 18°C | 11°C | 24°C 2002 | 7°C 2009 | 44% |
| Aug 20 | 18°C | 11°C | 25°C 2002 | 8°C 1995 | 44% |
| Aug 21 | 18°C | 11°C | 24°C 2002 | 7°C 1999 | 46% |
| Aug 22 | 17°C | 11°C | 27°C 2002 | 7°C 1999 | 46% |
| Aug 23 | 17°C | 11°C | 26°C 2002 | 7°C 2000 | 47% |
| Aug 24 | 17°C | 11°C | 24°C 2002 | 7°C 2004 | 49% |
| Aug 25 | 17°C | 10°C | 23°C 2002 | 6°C 2017 | 48% |
| Aug 26 | 17°C | 10°C | 23°C 2002 | 7°C 1992 | 47% |
| Aug 27 | 17°C | 10°C | 23°C 2002 | 6°C 2010 | 47% |
| Aug 28 | 16°C | 10°C | 22°C 2019 | 5°C 2012 | 46% |
| Aug 29 | 16°C | 10°C | 21°C 1997 | 5°C 1995 | 46% |
| Aug 30 | 16°C | 10°C | 21°C 1997 | 6°C 2007 | 44% |
| Aug 31 | 16°C | 10°C | 20°C 2019 | 5°C 2007 | 44% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- August 1
- sunrise 4:13 AM, sunset 9:39 PM
- August 31
- sunrise 5:36 AM, sunset 8:05 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.