Whanganui Weather in August
Average highs run from 12°C on August 1 to 13°C on August 31, and lows from 8°C to 8°C. Normal precipitation for the month is 89 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
- 13°C
- Average low
- 8°C
- Precipitation
- 89 mm
- Reanalysis high
- 17°CAug 30, 2009
- Reanalysis low
- 3°CAug 19, 2019
- Daylight
- 10 h 03 min to 11 h 09 min
- Cloud cover
- 71%
- Humidity
- 85%
- Dew point
- 8°C
- Wind
- 22.0 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 | 12°C | 8°C | 16°C 2014 | 4°C 1995 | 49% |
| Aug 2 | 13°C | 8°C | 17°C 2014 | 4°C 1995 | 50% |
| Aug 3 | 13°C | 8°C | 15°C 2010 | 4°C 2004 | 50% |
| Aug 4 | 13°C | 8°C | 15°C 2002 | 3°C 2004 | 50% |
| Aug 5 | 13°C | 8°C | 15°C 2020 | 5°C 2005 | 52% |
| Aug 6 | 13°C | 8°C | 16°C 2020 | 3°C 1997 | 54% |
| Aug 7 | 13°C | 8°C | 15°C 2018 | 4°C 1993 | 54% |
| Aug 8 | 13°C | 8°C | 16°C 2001 | 4°C 2016 | 56% |
| Aug 9 | 12°C | 8°C | 16°C 2001 | 4°C 1999 | 57% |
| Aug 10 | 12°C | 8°C | 16°C 2013 | 4°C 2009 | 56% |
| Aug 11 | 12°C | 8°C | 16°C 1998 | 3°C 2016 | 56% |
| Aug 12 | 12°C | 8°C | 15°C 2017 | 5°C 2006 | 55% |
| Aug 13 | 12°C | 8°C | 15°C 2009 | 4°C 2015 | 56% |
| Aug 14 | 12°C | 8°C | 15°C 2009 | 4°C 2020 | 55% |
| Aug 15 | 12°C | 8°C | 17°C 2009 | 3°C 2011 | 56% |
| Aug 16 | 12°C | 8°C | 15°C 2013 | 3°C 2011 | 54% |
| Aug 17 | 12°C | 8°C | 15°C 2005 | 4°C 2020 | 54% |
| Aug 18 | 12°C | 8°C | 15°C 2000 | 4°C 2019 | 54% |
| Aug 19 | 13°C | 8°C | 15°C 2005 | 3°C 2019 | 54% |
| Aug 20 | 13°C | 8°C | 15°C 2020 | 4°C 2008 | 53% |
| Aug 21 | 13°C | 8°C | 15°C 2001 | 4°C 2011 | 52% |
| Aug 22 | 13°C | 8°C | 16°C 2005 | 4°C 1997 | 50% |
| Aug 23 | 13°C | 8°C | 16°C 2020 | 3°C 1995 | 48% |
| Aug 24 | 13°C | 8°C | 16°C 2009 | 3°C 2006 | 46% |
| Aug 25 | 13°C | 8°C | 16°C 1997 | 5°C 2004 | 43% |
| Aug 26 | 13°C | 8°C | 16°C 1998 | 4°C 2004 | 44% |
| Aug 27 | 13°C | 8°C | 16°C 2000 | 4°C 2015 | 43% |
| Aug 28 | 13°C | 8°C | 16°C 2017 | 4°C 1995 | 43% |
| Aug 29 | 13°C | 8°C | 16°C 2018 | 4°C 1992 | 44% |
| Aug 30 | 13°C | 8°C | 17°C 2009 | 4°C 1993 | 43% |
| Aug 31 | 13°C | 8°C | 16°C 1991 | 4°C 1996 | 44% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+12).
- August 1
- sunrise 7:25 AM, sunset 5:28 PM
- August 31
- sunrise 6:46 AM, sunset 5:55 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.