Mount Barker climate

Mount Barker Weather in December

NASA POWER reanalysis for the half-degree grid cell around Mount Barker, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 26°C on December 1 to 28°C on December 31, and lows from 13°C to 15°C. Normal precipitation for the month is 25 mm over about 3 wet days.

December day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Mount Barker, in °C, with the record for each date.01020304050151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
27°C
Average low
14°C
Precipitation
25 mm
Reanalysis high
45°CDec 19, 2019
Reanalysis low
7°CDec 1, 1994
Daylight
14 h 19 min to 14 h 29 min
Cloud cover
50%
Humidity
54%
Dew point
9°C
Wind
16.9 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Dec 126°C13°C34°C 19967°C 199416%
Dec 226°C13°C35°C 19999°C 201516%
Dec 326°C13°C34°C 19949°C 201516%
Dec 426°C13°C36°C 19949°C 200616%
Dec 526°C13°C38°C 20158°C 199316%
Dec 626°C13°C38°C 20159°C 199516%
Dec 726°C13°C36°C 20157°C 199516%
Dec 826°C13°C39°C 20198°C 200116%
Dec 926°C13°C40°C 20068°C 199415%
Dec 1026°C13°C39°C 19989°C 201616%
Dec 1126°C14°C40°C 199810°C 199116%
Dec 1227°C14°C38°C 20128°C 200616%
Dec 1327°C14°C38°C 201710°C 199516%
Dec 1427°C14°C37°C 19969°C 200217%
Dec 1527°C14°C37°C 200310°C 201318%
Dec 1627°C14°C38°C 201510°C 200616%
Dec 1727°C14°C41°C 20199°C 200115%
Dec 1827°C14°C43°C 20199°C 201615%
Dec 1927°C14°C45°C 201911°C 202014%
Dec 2027°C14°C44°C 201910°C 199914%
Dec 2127°C14°C39°C 20029°C 199513%
Dec 2228°C14°C34°C 20099°C 201012%
Dec 2328°C14°C38°C 200910°C 199512%
Dec 2428°C14°C36°C 20159°C 199512%
Dec 2528°C14°C39°C 20169°C 200712%
Dec 2628°C14°C38°C 201810°C 199311%
Dec 2728°C14°C41°C 20189°C 199610%
Dec 2828°C14°C39°C 201810°C 201010%
Dec 2928°C14°C39°C 20199°C 19939%
Dec 3028°C14°C41°C 201910°C 19938%
Dec 3128°C15°C41°C 200711°C 19969%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Mount Barker, in percent.051015201102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+10:30).

December 1
sunrise 5:54 AM, sunset 8:13 PM
December 31
sunrise 6:03 AM, sunset 8:32 PM

Every day of December: sun and moon

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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.