General August Weather

[JP.]

I felt it was a pretty standard August for Christchurch. Seemed like more frosts and colder mornings, but Tmax probably running around average. Tmin slightly lower? Rainfall should have been under average from my feelings.

Pretty standard end of winter, looking forward to September and some spring conditions

[Nev]

After 2 exceptionally warm winter months, August 2023 looks to be NZ's coldest winter month since 2017 and coldest August since 2016. It was, however, also a generally relatively dry and sunny month for most parts.

Aug 2023 Climate Anomaly Maps ℅ NIWA.png

Preliminary stats for the main centres:

Code: Select all

Aug 2023 Average Temps, Rainfall, Sunshine and departures from 1991-2020 normals ℅ NIWA

Site                     T-max °C      T-min °C      T-mean °C     Rain mm      Sun hrs

Auckland, Mangere       15.1  -0.2     6.6  -1.6    10.8  -1.0     59   50%    180  117%
Tauranga Aero           15.3  -0.1     5.1  -2.0    10.2  -1.0     43   36%
Hamilton Aero           14.4  -0.3     2.4  -2.3     8.4  -1.3     96   81%    199  135%
Wellington, Kelburn     11.5  -0.9     6.1  -0.9     8.8  -0.9    126   90%    153  103%
Christchurch Aero       12.3  -0.2     0.4  -1.6     6.4  -0.9     44   76%    208  133%
Dunedin, Musselburgh    11.9  +0.5     4.2   0.0     8.1  +0.3     42   76%    156  128%
Greymouth Aero          12.8  +0.2     4.2  -1.2     8.5  -0.5    127   62%    167  122%

* Hamilton sunshine from Ruakura 

Hamilton Aero recorded its 2nd coldest August and 2nd coldest average overnight temp from records since 1971 (only 1972 was colder).
Christchurch Aero also recorded its 3rd coldest average overnight August temp from records since 1954 (only 2011 and 1993 were colder).
Auckland (Mangere) recorded its coldest August since 1985, while Tauranga Aero and Wellington recorded their coldest since 2004.

[Richard]

Aug recordings for what turned out to be a low rainfall, sunny and frosty month,
Rainfall 31.8mm
Max temp - 18.1deg on the 31st
Lowest temp -5.1deg on the 12th
Lowest max - 6.2deg on the 10th
highest min 6.7deg on the 20th

[NZ Thunderstorm Soc]

Yes, a low tally of rain for August here with only 13mm falling over 13 days making it the driest month so far this year.
Max Temp - 20.5C on Sun 20th
Lowest temp - minus 2.6C on Fri 11th and Wed 23rd
Lowest max - 8.8C on Sun 6th and Thurs 10th
Highest min - 5.6C on Tues the 1st
.......sorry, I forgot to mention that we had a total of 13 frosts. all up.

[Andy]

For Alexandra
Rainfall 15.6mm falling over 7 days
Max Temp - 17.8C on 30th
Lowest temp - minus 4.8C on 18th
Lowest max - 5.5C on 2nd
Highest min - 3.9C on 20th
26 days of frost

[Richard]

For Alexandra
Rainfall 15.6mm falling over 7 days
Max Temp - 17.8C on 30th
Lowest temp - minus 4.8C on 18th
Lowest max - 5.5C on 2nd
Highest min - 3.9C on 20th
26 days of frost

Wow 26 days, had 19 here. That would have to getting close to a record would it not??