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 1.7SSE2210:56-1.3918E11997.50.278 SSE19997.3
5Fr-5.70.20 6.5SE1901:34-1.987 SSW6996.3-1.285 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 S11994.80.580 SW9994.4
8Mo-3.91.00 10.5NNE2004:18-0.865 ESE9992.70.253 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 N11995.30.058 S19994.6
11Th-2.33.60 10.9S3103:031.461 SSE13992.21.6776N7991.1
12Fr-1.41.70 5.6NNE2001:230.563 ENE7989.80.868 WNW7989.4
13Sa-1.31.20 0.0NNE3107:58-0.773 NNE22993.3-0.2798N20995.3
14Su-1.51.30.4 0.0NNE2815:08-0.376 N91003.80.173 NNE201006.5
15Mo-1.52.10 2.6S2005:400.763 S71005.91.657 E111002.1
16Tu-2.80.60 12.5S3106:23-1.970 S20985.7-0.858 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 ENE94977.11.6678NE50986.0
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 2.0ESE6302:070.6747SSE22979.51.286 S17977.5
23Tu-0.12.42.0 0.6S3001:271.883 WNW11984.81.2958S19986.6
24We-0.23.13.2 0.0NNE3118:330.693 NE9988.21.488 N9990.5
25Th-0.33.70 2.2NE5709:282.075 NE41996.12.0827NNE31997.3
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 3.6NE6519:462.2644NNW9986.80.295 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   0.3716 16990.60.9717 18990.5
Lowest-6.90.20 0.0   -1.9504ENE2971.7-1.2516ENE6968.3
Highest1.35.53.2 13.9#119 4.3938ENE941005.94.1958E781006.5
Total  7.6 142.9               

IDCJDW9203.202512   Prepared at 16:04 UTC on Monday 16 February 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.

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Other times and other places

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

Feb 26   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   

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.