Casey, Antarctica
May 2025 Daily Weather Observations

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Th-16.5-10.92.0 0.1NNE2818:14-12.087 NNE9975.1-14.990 N9974.3
2Fr-18.5-6.00.6 0.0ESE6323:12-14.070 SE22984.7-13.774 S13986.8
3Sa-15.2-2.50.4 0.0E14108:04-7.487 E106974.0-4.854 SE30977.1
4Su-13.8-7.51.8 4.6SSE4801:39-12.059 SSE17969.8-13.765 S22970.8
5Mo-14.9-6.50 0.0SSE2201:40-9.286 SSE19974.6-8.488 SE7976.0
6Tu-9.8-7.80.4 0.0NE2016:12-7.9857NE11981.9-8.486 NE11983.5
7We-14.4-12.72.4 0.0S3317:57-12.484 SSE19976.8-14.384 S26972.7
8Th-20.5-14.40.6 0.0SSE4807:02-19.980 S31969.7-14.779 N19971.9
9Fr-19.3-15.70.4 0.0NE3119:38-16.982 NE19982.3-17.181 NNE17984.2
10Sa-17.9-14.60 0.0SSE2207:01-16.375 SSE17991.2-15.070 SSE13989.5
11Su-22.2-17.70 2.3ENE3518:02-19.471 Calm988.2-20.266 SSE11990.6
12Mo-23.7-19.40 3.5S2001:54-22.1607ESE9996.3-21.056 ESE7996.5
13Tu-27.6-22.50 4.8SSE3121:26-25.7535E11994.1-27.264 S20990.7
14We-28.8-18.70 4.3SSE3101:21-23.368 SE9977.7-21.667 Calm977.1
15Th-25.8-17.60 0.0NE2801:14-19.079 NNE15979.6-19.578 NNE13981.7
16Fr-20.2-17.50 0.0SSE3320:16-20.080 NE24984.4-20.280 NE22985.3
17Sa-24.9-11.90.2 3.3ESE10623:53-22.866 S20996.9-22.062 SSE37995.3
18Su-24.3-19.80 4.5ESE10601:15-18.165 S31991.5-21.166 S28989.4
19Mo-25.4-21.50 0.0SSE2601:36-22.180 SSE6990.1-23.182 SSE11989.2
20Tu-26.2-13.60 0.0SSW5416:00-25.077 SE13984.6-20.774 S31981.3
21We-24.7-18.10 0.0SSE3102:16-20.251 ENE11987.9-20.765 N9991.2
22Th-22.8-13.50 0.0ENE8000:03-20.666 NNE22995.2-19.973 NNE9992.8
23Fr-23.4-10.10 0.0E13906:38-14.183 E115973.4-12.677 E74985.2
24Sa-24.3-16.50 0.0NE4301:06-19.8606E91002.1-18.972 N15999.8
25Su-22.4-21.00.2 0.0S5720:18-21.477 Calm989.3-24.977 SSW19985.5
26Mo-26.8-20.60.2 0.0SSE5201:01-26.076 SE7980.7-28.372 SSE24979.6
27Tu-30.0-9.20 0.0S2800:57-21.475 ESE7975.7-18.979 ESE7977.8
28We-21.2-10.011.4 0.0S6105:10-11.882 S24979.3-12.785 SSE13984.4
29Th-19.0-16.72.2 0.0SSE3000:20-18.579 S15990.7-18.2828NNE11989.2
30Fr-24.7-17.70.2 0.0N4611:12-21.180 SSE11977.2-18.0728NE22978.2
31Sa-23.8-17.20.2 0.0E4413:49-21.863 SSE20991.4-20.856 NW6991.9
Statistics for May 2025
Mean-21.7-14.5  0.9   -18.1736 20984.1-17.9738 17984.5
Lowest-30.0-22.50 0.0   -26.0515Calm969.7-28.3548Calm970.8
Highest-9.8-2.511.4 4.8E141 -7.4877E1151002.1-4.8908E74999.8
Total  23.2 27.4               

IDCJDW9203.202505   Prepared at 13:04 UTC on Thursday 18 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.