Bilbao Weather in August
Average highs run from 23°C on August 1 to 23°C on August 31, and lows from 19°C to 19°C. Normal precipitation for the month is 37 mm over about 6 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
- 24°C
- Average low
- 19°C
- Precipitation
- 37 mm
- Reanalysis high
- 36°CAug 4, 2003
- Reanalysis low
- 15°CAug 10, 2002
- Daylight
- 14 h 32 min to 13 h 14 min
- Cloud cover
- 63%
- Humidity
- 73%
- Dew point
- 16°C
- Wind
- 14.4 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 | 23°C | 19°C | 32°C 2001 | 16°C 2002 | 27% |
| Aug 2 | 23°C | 19°C | 30°C 2015 | 16°C 1998 | 28% |
| Aug 3 | 24°C | 19°C | 31°C 2003 | 16°C 1998 | 27% |
| Aug 4 | 24°C | 19°C | 36°C 2003 | 17°C 2000 | 27% |
| Aug 5 | 24°C | 19°C | 29°C 2003 | 17°C 2001 | 27% |
| Aug 6 | 24°C | 19°C | 31°C 2018 | 17°C 2012 | 27% |
| Aug 7 | 24°C | 19°C | 29°C 2004 | 17°C 2002 | 26% |
| Aug 8 | 24°C | 19°C | 32°C 2003 | 17°C 2007 | 26% |
| Aug 9 | 24°C | 19°C | 31°C 1998 | 16°C 2002 | 25% |
| Aug 10 | 24°C | 19°C | 32°C 2012 | 15°C 2002 | 24% |
| Aug 11 | 24°C | 19°C | 29°C 2003 | 16°C 2002 | 23% |
| Aug 12 | 24°C | 19°C | 30°C 2003 | 17°C 2017 | 23% |
| Aug 13 | 24°C | 19°C | 32°C 2003 | 17°C 2002 | 23% |
| Aug 14 | 24°C | 19°C | 30°C 2017 | 17°C 2002 | 22% |
| Aug 15 | 24°C | 19°C | 30°C 2016 | 17°C 2008 | 22% |
| Aug 16 | 24°C | 19°C | 29°C 2012 | 17°C 2014 | 21% |
| Aug 17 | 24°C | 19°C | 30°C 2012 | 16°C 2014 | 20% |
| Aug 18 | 24°C | 19°C | 29°C 1992 | 17°C 2007 | 21% |
| Aug 19 | 24°C | 19°C | 32°C 1992 | 18°C 1998 | 21% |
| Aug 20 | 24°C | 19°C | 32°C 2011 | 17°C 2007 | 21% |
| Aug 21 | 24°C | 19°C | 31°C 1991 | 16°C 2007 | 22% |
| Aug 22 | 24°C | 19°C | 28°C 2016 | 17°C 2007 | 22% |
| Aug 23 | 24°C | 19°C | 31°C 2009 | 16°C 1993 | 23% |
| Aug 24 | 24°C | 19°C | 29°C 2016 | 15°C 1993 | 24% |
| Aug 25 | 24°C | 19°C | 32°C 2016 | 16°C 1993 | 25% |
| Aug 26 | 23°C | 19°C | 30°C 1991 | 17°C 1993 | 25% |
| Aug 27 | 23°C | 19°C | 29°C 2016 | 16°C 1993 | 25% |
| Aug 28 | 23°C | 19°C | 29°C 1991 | 16°C 1996 | 25% |
| Aug 29 | 23°C | 19°C | 29°C 2015 | 16°C 1996 | 26% |
| Aug 30 | 23°C | 19°C | 31°C 2005 | 16°C 1996 | 26% |
| Aug 31 | 23°C | 19°C | 32°C 2009 | 15°C 1996 | 27% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- August 1
- sunrise 7:02 AM, sunset 9:34 PM
- August 31
- sunrise 7:35 AM, sunset 8:49 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.