Casey, Antarctica
December 2025 Daily Weather Observations

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Mo-6.91.30 13.3SE2803:35-1.464 SE9998.8-0.559 S13998.0
2Tu-6.20.60 13.0E3321:28-1.654 E9995.7-0.555 S20994.4
3We-4.01.20 0.2ESE2604:030.471 N9994.30.175 NW11995.0
4Th-1.80.80.4 1.7SSE2210:56-0.785 S17997.30.278 SSE19997.3
5Fr-5.70.20 6.5SE1901:34-2.489 SSW7996.2-1.285 SW9995.6
6Sa-5.31.80 8.4SSE3011:14-1.673 S13997.50.465 WSW11997.2
7Su-1.41.10.2 0.4N2620:49-0.184 S11994.80.579 WSW6994.2
8Mo-3.91.00 10.5NNE2004:18-0.870 SE15992.40.253 N11991.6
9Tu-4.80.40 9.9SE2221:18-0.865 SSE11991.0-0.568 S9992.3
10We-5.13.00 13.9E3105:05-0.250 N11995.3-0.158 S17994.4
11Th-2.33.60 10.9S3103:031.461 SSE13992.21.874 N6991.1
12Fr-1.41.70 5.6NNE2001:230.563 ENE7989.80.868 WNW7989.4
13Sa-1.31.20 0.0NNE3107:58-0.773 NNE22993.3-0.180 N13996.2
14Su-1.51.30.4 0.0NNE2815:080.272 NNE91004.00.173 NNE201006.5
15Mo-1.52.10 2.6S2005:400.767 SSE111005.41.657 E111002.1
16Tu-2.80.60 12.5S3106:23-2.070 S19984.6-0.858 WNW17980.7
17We-3.20.50 10.6ENE7600:25-1.371 NNE24981.1-0.559 N20983.3
18Th-2.32.00 0.0ENE11909:260.267 ENE94977.11.766 NE56985.0
19Fr-0.63.30 1.7NE5621:310.580 S9991.42.679 NNE20990.0
20Sa-0.63.10 5.5NE4601:341.371 NNW11980.71.480 N15976.8
21Su-2.33.70 2.6ESE6700:510.266 SSE20981.23.151 SSW26983.0
22Mo-0.33.30 2.0ESE6302:071.670 S17980.21.286 S17977.5
23Tu-0.12.42.0 0.6S3001:271.883 WNW11984.82.391 E9987.6
24We-0.23.13.2 0.0NNE3118:330.693 NE9988.21.488 N9990.5
25Th-0.33.70 2.2NE5709:282.075 NE41996.12.680 NE30997.8
26Fr-0.43.00.2 0.5NE5601:070.791 NNE31998.51.186 NNE28999.2
27Sa-0.43.90 2.7SSW3000:592.178 ENE2999.91.284 NNW9997.4
28Su-0.93.71.2 1.5E11912:331.576 S17971.72.970 E78968.3
29Mo1.35.50 3.6NE6519:462.466 NW7987.50.295 NNW15991.0
30Tu0.05.00 0.0SSE8701:174.357 NE24989.74.156 ENE6986.6
31We0.64.40 0.0E7410:103.055 SSE11978.72.862 S15977.4
Statistics for December 2025
Mean-2.12.3  4.6   0.471  16990.61.071  17990.6
Lowest-6.90.20 0.0   -2.450 ENE2971.7-1.251 #6968.3
Highest1.35.53.2 13.9#119 4.393 ENE941005.44.195 E781006.5
Total  7.6 142.9               

IDCJDW9203.202512   Prepared at 13:04 UTC on Wednesday 14 January 2026

Source of data

Observations were drawn from Casey {station 300017}.

"9 am" observations are those made at 0300 UTC. This is equivalent to 10 am Local Standard Time, but 11am according to the time used by most people at the station. "3 pm" observations are similarly those made at 0900 UTC (4 pm LST, 5 pm station time).The maximum wind gust is in the 24 hours to 1 am local standard time.

You should read the important information in these notes.

Other formats

To print this page, get the PDF version (one page, 45 kb).

To use this page in a spreadsheet, get the plain text version (4 kb).

Other times and other places

The last 14 months of Daily Weather Observations for Casey, Antarctica are also here on this web site:

Jan 26   Dec 25   Nov 25   Oct 25   Sep 25   Aug 25   Jul 25   Jun 25   
May 25   Apr 25   Mar 25   Feb 25   Jan 25   Dec 24   

Daily Weather Observations are also routinely prepared for hundreds of other locations in Antarctica and across Australia. To get other months or places not on this web site, contact us.

Climate statistics

If you are after long-term averages relevant to Casey, Antarctica, look at the tables for Casey or Casey (The Tunnel).

Maps and tables of average conditions for locations across Australia are also available.

More information

If you are using these pages, you are deemed to have understood the important information in these notes. They cover how the data are obtained, how they are processed, and what each column means.

If you have any questions about this product, or you want any other weather or climate information, please contact us.