Tuesday 1 April 2025 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in March 2025
Jump to a map of the areas covered in this summary
Australia's Indian Ocean islands
- Christmas Island Aero monthly rainfall total was 405.8 mm, this was above the March average rainfall of 298.9 mm.
- At Christmas Island Aero, the mean maximum and mean minimum temperatures were 0.6 °C and 0.9 °C above the March average, respectively.
- The monthly rainfall total at Cocos Island Airport was 366.0 mm, this was above the March average rainfall of 234.7 mm.
- At Cocos Island Airport, the mean maximum and minimum temperatures were 0.5 °C above the March average.
- Cocos Island Airport had its hottest March day (highest daily maximum temperature) on record on the 7th at 32.8 °C, the previous record was 32.7 °C in 1998.
Australia's Pacific Ocean islands
- Norfolk Island Aero recorded a monthly rainfall total of 62.4 mm, this was below the March average of 103.8 mm.
- At Norfolk Island Aero, the mean maximum and mean minimum temperatures were 1.0 °C and 0.2 °C above the March average, respectively.
- The monthly rainfall total at Lord Howe Island Aero was 62.8 mm, this was below the March average rainfall of 103.8 mm.
- At Lord Howe Island Aero, the mean maximum and mean minimum temperatures were 0.9 °C and 1.0 °C above the March average, respectively.
Australia's Antarctic and sub-Antarctic territories
- The strongest wind gust recorded at the Australian Antarctic stations during March was 139 km/h at Casey on the 10th.
- Both mean maximum and mean minimum temperatures for March were below average at Davis and Mawson, while at Casey they were above average.
- Monthly precipitation at Macquarie Island was 124.4 mm, this was above the March average rainfall of 101.1 mm.
- The mean maximum and mean minimum temperature at Macquarie Island was 0.9 °C above the March average.
- The strongest wind gust recorded in March at Macquarie Island was 102 km/h on the 21st.
Extremes Records Summaries Daily observations Important notes the top
| Highest March total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for March |
|||
| Casey | 33.8 | 34.8 | in 1999 | 17.6 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record highest March temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for March |
|||
| Cocos Island Airport | 32.8 | on the 7th | 32.7 | on 21 Mar 1998 | 74 | 30.1 |
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for March 2025 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for March 2025 |
Diff from average |
Highest for March 2025 |
Mean for March 2025 |
Diff from average |
Lowest for March 2025 |
Total for March 2025 |
Average for March |
Rank of March 2025 |
Fraction of March average |
|||
| Offshore Islands | ||||||||||||
| Lord Howe Island Aero | 25.9 | +0.9 | 28.2 | 17th | 21.1 | +1.0 | 17.8 | 15th | 62.8 | 128.1 | low | 49% |
| Norfolk Island Aero | 25.4 | +1.0 | 27.3 | 1st | 19.5 | +0.2 | 17.9 | 14th | 62.4 | 103.8 | average | 60% |
| Christmas Island Aero | 28.9 | +0.6 | 30.1 | 6th | 24.0 | +0.9 | 21.5 | 24th | 405.8 | 298.9 | high | 136% |
| Cocos Island Airport | 30.6 | +0.5 | 32.8 | 7th | 25.8 | +0.5 | 24.0 | 8th | 336.4 | 234.7 | high | 143% |
| Antarctica and Macquarie Island | ||||||||||||
| Casey | -3.2 | +1.0 | 1.6 | 13th | -8.5 | +1.4 | -14.5 | 31st | 33.8 | 16.9 | high | 200% |
| Davis | -6.3 | -0.7 | 1.8 | 12th | -11.3 | -0.4 | -21.8 | 31st | 0.6 | 8.7 | lowest | 7% |
| Macquarie Island | 8.9 | +0.9 | 10.6 | 20th | 5.7 | +0.9 | 3.5 | 26th | 124.4 | 101.1 | high | 123% |
| Mawson | -8.5 | -1.3 | -2.8 | 13th | -14.4 | -1.1 | -21.3 | 30th | ||||
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for March 2025 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Lord Howe Island Aero | 26.8 | 26.8 | 24.4 | 23.9 | 25.0 | 24.2 | 24.3 | 25.7 | 26.1 | 25.8 | 26.2 | 25.5 | 25.9 | 26.7 | 26.5 | 26.5 | 28.2 | 24.2 | 25.0 | 26.2 | 26.2 | 26.7 | 27.4 | 25.4 | 26.5 | 26.3 | 25.2 | 26.3 | 26.1 | 25.3 | 26.6 |
| Norfolk Island Aero | 27.3 | 27.2 | 26.4 | 25.6 | 26.5 | 26.1 | 26.0 | 24.6 | 25.1 | 25.8 | 25.2 | 24.7 | 25.1 | 25.1 | 25.1 | 25.0 | 25.8 | 26.1 | 24.9 | 24.6 | 24.0 | 25.0 | 24.8 | 25.8 | 26.1 | 25.5 | 25.1 | 24.9 | 24.7 | 25.0 | 25.8 |
| Christmas Island Aero | 29.3 | 29.5 | 29.2 | 29.4 | 29.3 | 30.1 | 29.5 | 29.4 | 29.2 | 28.9 | 29.7 | 29.3 | 29.0 | 29.2 | 27.9 | 27.9 | 26.7 | 27.5 | 29.6 | 29.2 | 29.2 | 29.1 | 28.3 | 28.4 | 27.2 | 28.3 | 28.3 | 29.9 | 29.5 | 29.8 | 28.6 |
| Cocos Island Airport | 31.3 | 31.3 | 30.9 | 31.0 | 31.7 | 29.6 | 32.8 | 32.1 | 32.3 | 31.5 | 30.8 | 31.1 | 30.7 | 30.2 | 31.0 | 29.9 | 29.3 | 29.5 | 29.5 | 30.6 | 31.0 | 30.1 | 29.8 | 29.3 | 28.8 | 29.8 | 29.8 | 30.6 | 30.8 | 31.1 | 29.9 | Antarctica and Macquarie Island | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Casey | -4.3 | -3.0 | -3.4 | -3.5 | -1.1 | -0.5 | 0.0 | -1.9 | -3.6 | -1.2 | 0.0 | 0.4 | 1.6 | -1.3 | -5.3 | -1.7 | -1.1 | -2.2 | -4.0 | -3.8 | -4.3 | -5.3 | -5.8 | -4.6 | -7.5 | -3.7 | -3.2 | -6.6 | -4.0 | -6.0 | -7.9 |
| Davis | -1.5 | -5.9 | -4.3 | -3.4 | -6.0 | -4.7 | -5.9 | -3.6 | -3.1 | -2.5 | -0.8 | 1.8 | -0.1 | -3.0 | -6.3 | -9.2 | -10.7 | -7.8 | -3.5 | -2.7 | -4.0 | -6.2 | -8.0 | -7.5 | -9.1 | -11.1 | -12.0 | -10.5 | -12.5 | -15.8 | -16.6 |
| Macquarie Island | 9.7 | 9.3 | 8.7 | 9.9 | 10.0 | 9.7 | 8.8 | 8.8 | 9.2 | 8.4 | 8.3 | 8.1 | 8.4 | 8.4 | 9.1 | 9.3 | 9.3 | 9.0 | 9.5 | 10.6 | 8.8 | 9.1 | 7.9 | 9.0 | 8.8 | 7.9 | 8.0 | 8.5 | 8.6 | 8.6 | 8.7 |
| Mawson | -5.3 | -4.8 | -5.7 | -6.9 | -7.5 | -9.1 | -8.8 | -8.0 | -7.2 | -7.3 | -6.4 | -4.8 | -2.8 | -7.3 | -8.0 | -5.8 | -6.6 | -9.4 | -8.1 | -6.8 | -6.1 | -9.6 | -10.9 | -11.9 | -9.9 | -12.0 | -12.7 | -13.2 | -15.6 | -10.2 | -13.3 |
|
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated, and typically occurred in the afternoon of that day. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily minimum temperatures for March 2025 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Lord Howe Island Aero | 22.8 | 22.4 | 23.7 | 21.3 | 21.2 | 22.1 | 21.2 | 21.4 | 20.7 | 21.3 | 22.1 | 20.8 | 18.2 | 21.4 | 17.8 | 19.2 | 22.5 | 20.9 | 20.1 | 20.5 | 20.9 | 21.9 | 18.7 | 17.9 | 21.2 | 22.8 | 21.6 | 20.9 | 23.1 | 21.4 | 21.2 |
| Norfolk Island Aero | 21.0 | 21.8 | 20.6 | 21.3 | 21.2 | 20.8 | 19.9 | 19.5 | 19.2 | 18.6 | 19.6 | 18.9 | 19.2 | 17.9 | 18.8 | 18.8 | 18.8 | 19.1 | 19.3 | 18.8 | 18.1 | 18.0 | 19.0 | 20.0 | 20.5 | 19.0 | 20.5 | 18.5 | 18.7 | 19.2 | 21.0 |
| Christmas Island Aero | 24.3 | 25.7 | 25.6 | 25.8 | 24.8 | 24.9 | 25.1 | 24.6 | 25.4 | 24.9 | 23.0 | 23.7 | 24.4 | 23.4 | 22.9 | 23.6 | 22.2 | 22.6 | 22.3 | 25.4 | 25.4 | 26.0 | 22.6 | 21.5 | 22.9 | 23.9 | 23.8 | 24.0 | 23.8 | 22.5 | 23.5 |
| Cocos Island Airport | 26.3 | 27.6 | 25.3 | 26.7 | 27.9 | 27.1 | 25.1 | 24.0 | 25.9 | 27.7 | 26.7 | 26.5 | 26.0 | 25.3 | 26.7 | 25.4 | 25.8 | 24.4 | 24.3 | 24.8 | 25.1 | 26.7 | 25.9 | 25.3 | 25.8 | 24.7 | 26.3 | 26.3 | 25.8 | 24.7 | 24.9 | Antarctica and Macquarie Island | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Casey | -6.6 | -8.1 | -7.3 | -9.6 | -10.2 | -12.4 | -1.9 | -7.5 | -10.5 | -10.7 | -6.1 | -1.9 | -3.9 | -4.8 | -7.0 | -8.6 | -5.8 | -7.1 | -6.5 | -7.1 | -11.0 | -12.4 | -10.5 | -12.9 | -8.0 | -11.7 | -10.4 | -8.2 | -11.8 | -8.6 | -14.5 |
| Davis | -4.9 | -7.5 | -8.0 | -9.9 | -11.7 | -9.6 | -8.8 | -8.1 | -10.6 | -9.6 | -6.3 | -4.1 | -1.1 | -7.8 | -8.1 | -14.7 | -14.2 | -14.8 | -12.7 | -8.7 | -9.3 | -10.9 | -13.3 | -11.5 | -12.5 | -17.4 | -18.2 | -17.4 | -15.6 | -19.7 | -21.8 |
| Macquarie Island | 5.8 | 7.7 | 3.9 | 4.2 | 7.2 | 6.8 | 4.9 | 5.1 | 6.5 | 7.1 | 4.9 | 6.0 | 6.8 | 6.7 | 6.1 | 6.3 | 4.6 | 5.1 | 5.1 | 5.7 | 6.4 | 6.3 | 5.4 | 4.4 | 6.2 | 3.5 | 4.0 | 5.5 | 7.3 | 3.7 | 6.6 |
| Mawson | -14.0 | -11.1 | -11.9 | -13.3 | -12.8 | -14.2 | -16.8 | -15.3 | -13.2 | -13.0 | -12.2 | -11.1 | -9.2 | -12.4 | -11.9 | -14.1 | -14.8 | -13.5 | -12.3 | -12.8 | -11.2 | -12.9 | -12.1 | -18.4 | -17.4 | -17.5 | -19.4 | -20.7 | -20.6 | -21.3 | -15.9 |
|
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated, and typically occurred that morning. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
||||||||
| Daily rainfall for March 2025 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Offshore Islands | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Lord Howe Island (Milky Way) | 0.6 | - | 0.8 | 10.6 | 8.2 | 0.4 | 7.2 | 0.4 | - | - | - | 1.0 | - | 0.2 | - | - | 0.4 | 2.2 | 0.4 | - | - | - | - | 1.0 | - | - | 1.2 | 13.0 | - | 3.8 | 11.2 | |
| Lord Howe Island Aero | - | - | 1.0 | 8.8 | 11.0 | 0.2 | 4.2 | - | - | 0.2 | - | 1.6 | 0.4 | - | 1.4 | 0.2 | 0.8 | 0.8 | 0.2 | - | - | 0.2 | - | 0.2 | 0.2 | - | 6.8 | 16.2 | 0.2 | 8.2 | ||
| Norfolk Island Aero | 0.4 | 0.2 | - | 0.8 | 3.6 | - | - | 0.2 | 0.4 | 1.0 | 0.2 | 1.4 | - | - | - | 0.4 | 21.4 | - | 8.0 | 0.2 | 0.4 | - | - | - | 0.2 | 21.4 | 2.0 | - | 0.2 | - | - | |
| Christmas Island Aero | 3.2 | - | - | 0.2 | 3.0 | 2.6 | - | - | - | 0.2 | 56.0 | - | 4.0 | 29.4 | 12.6 | 12.0 | 16.6 | 43.0 | 18.6 | 2.6 | 0.6 | - | 16.2 | 84.4 | 41.0 | 25.4 | 30.6 | 3.4 | - | 0.2 | - | |
| Cocos Island Airport | 5.4 | 0.2 | 14.6 | - | - | 5.0 | 27.2 | 53.2 | - | 1.6 | - | 7.6 | - | 8.8 | 0.2 | 31.0 | 0.4 | 34.8 | 62.6 | 10.2 | 0.6 | - | 2.6 | 15.0 | 14.0 | 41.4 | - | - | - | - | - | Antarctica and Macquarie Island | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| Casey | - | - | - | - | - | - | - | - | - | 3.4 | 2.0 | - | 0.8 | 3.2 | - | - | - | - | - | - | - | - | 8.6 | 1.8 | 0.2 | - | 2.8 | 6.0 | 0.6 | 2.4 | 2.0 | |
| Davis | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.6 | - | - | - | - | - | - | |||
| Macquarie Island | 15.8 | 3.6 | 3.2 | 1.6 | 0.2 | 1.8 | 9.8 | 2.2 | 0.4 | 5.0 | 0.2 | 0.6 | - | 3.8 | 6.0 | 7.8 | 1.2 | 6.6 | 3.8 | 4.6 | 6.0 | 0.4 | 7.4 | - | 4.2 | 5.4 | 6.4 | 6.6 | 0.6 | 7.2 | 2.0 | |
|
Most values are the precipitation in the 24 hours to 9 am on the day indicated.
Days marked with → are part of a longer accumulation, which is shown on the final day. Values over 100 mm have been rounded to the nearest whole millimetre. Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell). | ||||||||||||||||||||||||||||||||
| Rainfalls coloured according to the amount |
0 | 1.0 | 5.0 | 10.0 | 15.0 | 25.0 | 50.0 | 100 | 150 | 200 | 300 | 400 | 600 | millimetres | ||||||||||||||||||
Extremes Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Remote Islands and Antarctica using the most timely and accurate information available on the date of publication; it will generally not be updated.
This statement has been prepared based on information available on Tuesday 1 April 2025. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In some situations, some or all of the rainfall is in the form of hail or snow. In these cases, the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.
Averages for individual sites are long-term means based on observations from
all previous years of record, which vary widely from site to site.
They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median
is sometimes more representative than the
mean
of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
decile ranking
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a
percentage of the long-term mean.
Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.
Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
