Casey, Antarctica
August 2025 Daily Weather Observations

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Fr-19.8-18.80.2 0.0ENE4100:22-18.960 WNW15983.4-20.173 NNE13982.0
2Sa-26.8-19.10 0.0ENE3501:01-21.577 SE11978.4-21.577 SSE15978.3
3Su-21.8-12.10.4 0.0E13300:00-21.577 S9976.3-21.759 ESE30973.9
4Mo-22.0-7.70 0.0ENE17805:26-12.680 E131959.7-12.764 E131961.0
5Tu-14.0-7.3  0.0E19104:14-9.872 E131950.0-8.182 ENE111947.6
6We-11.9-6.0  0.0E12002:49-9.551 E61967.1-8.251 E48974.6
7Th-9.8-3.80 0.0E20718:43-7.760 E89978.2-7.987 E128968.7
8Fr-8.6-4.31.4 0.0ENE15201:23-5.268 NE28971.1-4.982 NNE35978.9
9Sa-7.7-4.00.6 0.0ENE15201:13-7.284 E106974.7-4.992 NE67982.2
10Su-10.6-5.20.6 2.8ENE8900:34-6.077 NW31968.3-7.381 NE43976.3
11Mo-10.7-5.30 0.0ENE8701:18-5.763 ENE57979.1-6.475 ENE41979.6
12Tu-9.0-7.46.4 0.0N3101:01-8.290 Calm983.9-8.687 NNE15982.3
13We-9.6-9.33.0 0.0NE3111:14-9.284 N13980.0-13.288 NNE20982.3
14Th-19.3-14.90 3.4NE3508:26-19.084 NE30987.9-19.176 ENE17991.1
15Fr-25.0-10.70 0.0SSE2610:09-22.275 E15988.0-19.765 NNE7983.8
16Sa-25.1-9.50.6 0.0E12213:45-12.475 E85966.3-12.483 E100960.8
17Su-19.9-9.32.0 5.0E8900:50-19.177 Calm973.5-19.375 Calm975.7
18Mo-19.9-8.80.8 0.0E11107:41-11.668 S59963.9-9.762 ESE15966.9
19Tu-19.2-15.90 0.3SSE2812:36-18.676 S15974.9-19.074 S13971.3
20We-22.5-11.70 1.4N2805:30-20.777 SSE17969.2-18.372 S7973.5
21Th-21.4-5.50 0.1ENE9623:23-15.365 S17986.7-9.672 S7986.6
22Fr-13.8-8.60 6.0ENE8502:05-11.361 SSE20983.4-12.357 SSE19980.4
23Sa-18.8-15.60 6.9NE3019:47-16.048 Calm979.0-20.7663SSE19980.2
24Su-21.7-17.10.2 3.3E3508:05-18.669 E26989.1-20.058 ENE11991.9
25Mo-21.7-15.30 7.3ENE2401:03-17.471 NE22995.6-18.662 ESE13994.7
26Tu-21.0-13.00 8.6ESE2420:48-16.954 ESE91007.6-13.645 SE41007.5
27We-20.5-13.40 7.0NE3313:43-17.738 ENE13996.6-16.149 E22998.0
28Th-21.2-15.70 8.5SSE2409:51-17.462 ENE9994.9-17.768 NE19990.9
29Fr-23.8-12.60 0.9SSE5219:41-19.649 SE26980.6-18.259 SSE22977.3
30Sa-25.2-4.31.4 0.0E13715:53-13.681 E98971.4-8.569 E80972.3
31Su-12.8-4.83.0 0.0ENE8902:13-8.355 NE15978.6-7.345 W13978.6
Statistics for August 2025
Mean-17.9-10.2  2.0   -14.268  37978.6-13.7693 35979.0
Lowest-26.8-19.10 0.0   -22.238 Calm950.0-21.7453Calm947.6
Highest-7.7-3.86.4 8.6E207 -5.290 E1311007.6-4.9923E1311007.5
Total  20.6 61.5               

IDCJDW9203.202508   Prepared at 13:04 UTC on Sunday 21 September 2025

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:

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