Sunday 1 February 2026 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in January 2026
Jump to a map of the areas covered in this summary
Australia's Indian Ocean islands
- The monthly rainfall total at Christmas Island Aero was 416.2 mm, this was above the average January rainfall of 292.0 mm. This was the highest January rainfall for the station since 2012.
- At Christmas Island Aero, both the mean maximum and minimum temperatures were 0.1 °C above average.
- The monthly rainfall total at Cocos Island Airport was 123.0 mm, this was just below the average January rainfall of 164.4 mm.
- At Cocos Island Airport, the mean maximum temperature was 0.7 °C above average and the mean minimum temperature was 0.4 °C above average.
- On the 1st, Cocos Island Airport had its equal coldest January night on record at 21.0 °C.
Australia's Pacific Ocean islands
- The January rainfall total at Norfolk Island Aero was 322.6 mm, this is well above the January average rainfall total of 86.5 mm. This was the second-highest January rainfall total on record for the station, behind 1959 at 339.5 mm.
- Tropical low 14U passed close to Norfolk Island on the 21st and brought several days of rainfall. In the 48 hours to 9am on the 21st, the station recorded 260.0 mm, this was the highest 2-day rainfall total on record for January.
- At Norfolk Island the mean maximum temperature was 1.1 °C above average and the mean minimum temperature was 0.9 °C above average.
- The monthly rainfall total at Lord Howe Island Aero was 21.8 mm, this was very low compared to the January average rainfall of 102.6 mm.
- At Lord Howe Island Aero, both the mean maximum and minimum temperatures were 0.5 °C below average.
Australia's Antarctic and sub-Antarctic territories
- The strongest wind gust recorded at the Australian Antarctic stations during January was 167 km/h at Casey on the afternoon of the 22nd.
- The January mean maximum temperature amd minimum temperatures were above average at all Australian Antarctic stations.
- Monthly precipitation at Macquarie Island was 77.2 mm, this was just below the January average rainfall of 89.2 mm.
- At Macquarie Island, the mean maximum and minimum temperatures were 0.3 °C and 0.2 °C above average, respectively.
- The strongest wind gust recorded at Macquarie Island during January was 94 km/h on the evening of the 30th.
Extremes Records Summaries Daily observations Important notes the top
| Highest January total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for January |
|||
| Norfolk Island Aero | 322.6 | 339.5 | in 1959 | 88.3 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record lowest January temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for January |
|||
| Cocos Island Airport | 21.0 | on the 1st | =21.0 | on 02 Jan 2007 | 74 | 24.9 |
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for January 2026 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for January 2026 |
Diff from average |
Highest for January 2026 |
Mean for January 2026 |
Diff from average |
Lowest for January 2026 |
Total for January 2026 |
Average for January |
Rank of January 2026 |
Fraction of January average |
|||
| Offshore Islands | ||||||||||||
| Lord Howe Island Aero | 25.0 | -0.5 | 27.0 | 26th | 20.3 | -0.5 | 14.8 | 25th | 21.8 | 102.6 | low | 21% |
| Norfolk Island Aero | 25.7 | +1.1 | 27.8 | 15th | 20.1 | +0.9 | 16.3 | 1st | 322.6 | 86.5 | high | 373% |
| Christmas Island Aero | 28.2 | +0.1 | 30.6 | 6th | 22.9 | +0.1 | 21.2 | 18th | 416.2 | 292.0 | high | 142% |
| Cocos Island Airport | 30.5 | +0.7 | 31.4 | 13th | 25.3 | +0.4 | 21.0 | 1st | 123.0 | 164.4 | average | 75% |
| Antarctica and Macquarie Island | ||||||||||||
| Casey | 3.2 | +0.9 | 6.7 | 19th | -1.4 | +1.1 | -4.6 | 12th | 13.5 | 9.6 | high | 141% |
| Davis | 3.9 | +0.7 | 8.5 | 2nd | -0.4 | +0.8 | -3.6 | 19th | 11.1 | 1.8 | highest | 617% |
| Macquarie Island | 9.1 | +0.3 | 11.8 | 19th | 5.6 | +0.2 | 3.6 | 31st | 77.2 | 89.2 | average | 86% |
| Mawson | 3.1 | +0.6 | 7.2 | 3rd | -2.2 | +0.5 | -6.3 | 19th | ||||
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for January 2026 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 23.7 | 23.0 | 23.9 | 23.9 | 24.7 | 24.9 | 24.8 | 24.7 | 25.9 | 25.8 | 26.7 | 26.7 | 26.3 | 25.3 | 24.6 | 25.4 | 25.5 | 23.1 | 24.8 | 24.5 | 24.2 | 25.7 | 23.6 | 24.1 | 25.4 | 27.0 | 26.3 | 24.2 | 25.3 | 24.8 | 25.4 |
| Norfolk Island Aero | 25.1 | 25.3 | 24.3 | 24.1 | 25.3 | 25.6 | 25.7 | 25.5 | 25.4 | 26.4 | 27.0 | 27.3 | 27.2 | 26.6 | 27.8 | 26.9 | 26.0 | 26.5 | 25.0 | 25.5 | 26.2 | 26.5 | 26.3 | 24.6 | 24.7 | 25.0 | 25.8 | 24.9 | 26.8 | 23.4 | 25.1 |
| Christmas Island Aero | 28.0 | 28.5 | 28.0 | 27.4 | 28.6 | 30.6 | 29.6 | 29.8 | 29.9 | 29.4 | 28.8 | 28.4 | 28.3 | 28.7 | 28.7 | 29.7 | 29.0 | 29.1 | 28.4 | 25.7 | 28.1 | 27.6 | 27.2 | 26.0 | 28.3 | 27.7 | 25.2 | 25.7 | 25.8 | 27.9 | 29.0 |
| Cocos Island Airport | 29.5 | 30.2 | 29.5 | 30.3 | 27.9 | 30.3 | 29.8 | 30.8 | 31.1 | 30.2 | 31.0 | 30.9 | 31.4 | 31.0 | 30.5 | 30.5 | 30.6 | 30.9 | 30.9 | 30.7 | 30.7 | 30.5 | 30.9 | 30.7 | 30.8 | 30.7 | 30.7 | 30.5 | 30.6 | 30.5 | 29.8 | 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 | 4.4 | 3.2 | 3.7 | 3.6 | 2.7 | 4.2 | -0.1 | 0.9 | 1.7 | 1.3 | 1.9 | 1.8 | 1.6 | 1.5 | 1.9 | 3.6 | 5.1 | 3.8 | 6.7 | 5.4 | 3.9 | 4.0 | 3.0 | 5.6 | 5.6 | 5.3 | 4.5 | 4.8 | 0.5 | 1.0 | 1.0 |
| Davis | 6.9 | 8.5 | 5.2 | 7.9 | 4.6 | 4.5 | 3.1 | 4.7 | 3.8 | 2.3 | 2.8 | 4.1 | 2.0 | 1.3 | 3.1 | 4.0 | 1.4 | 1.7 | 7.1 | 5.4 | 6.9 | 5.2 | 4.2 | 2.3 | 2.1 | 2.4 | 3.8 | 0.1 | 2.0 | 4.0 | 3.0 |
| Macquarie Island | 10.4 | 8.7 | 10.0 | 8.4 | 8.4 | 8.5 | 9.0 | 9.7 | 9.5 | 9.1 | 8.8 | 9.3 | 8.3 | 9.2 | 8.8 | 9.6 | 8.8 | 10.5 | 11.8 | 10.0 | 9.0 | 5.8 | 6.9 | 9.3 | 7.6 | 11.1 | 9.2 | 9.1 | 9.4 | 9.7 | 8.9 |
| Mawson | 4.8 | 5.1 | 7.2 | 3.9 | 3.1 | 3.8 | 1.1 | 2.4 | 3.6 | 5.2 | 3.3 | 3.3 | 4.7 | 2.1 | 2.4 | 0.7 | 1.2 | 1.5 | 2.4 | 3.2 | 3.2 | 2.0 | 3.4 | 0.0 | 5.1 | 3.0 | 5.9 | 1.6 | 3.7 | 1.6 | |
|
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 January 2026 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 20.1 | 19.3 | 17.1 | 17.9 | 20.3 | 19.5 | 20.3 | 20.5 | 21.6 | 22.4 | 22.6 | 20.8 | 22.9 | 21.1 | 20.1 | 21.3 | 21.5 | 20.8 | 20.6 | 20.4 | 20.3 | 20.8 | 20.3 | 19.0 | 14.8 | 16.3 | 22.0 | 20.4 | 21.8 | 21.6 | 20.9 |
| Norfolk Island Aero | 16.3 | 16.6 | 18.6 | 17.4 | 17.0 | 19.0 | 20.1 | 20.8 | 20.5 | 19.3 | 21.5 | 19.4 | 22.2 | 23.0 | 22.2 | 21.2 | 22.9 | 21.2 | 21.6 | 20.3 | 22.1 | 21.7 | 21.5 | 20.2 | 18.9 | 19.7 | 17.9 | 19.1 | 19.7 | 22.3 | 20.3 |
| Christmas Island Aero | 22.3 | 21.5 | 23.1 | 22.5 | 22.2 | 22.6 | 24.6 | 24.0 | 23.9 | 24.3 | 24.7 | 23.7 | 24.2 | 23.6 | 23.0 | 23.1 | 23.0 | 21.2 | 23.2 | 22.8 | 23.4 | 22.8 | 22.7 | 22.4 | 22.8 | 21.7 | 21.6 | 22.3 | 22.5 | 22.6 | 22.2 |
| Cocos Island Airport | 21.0 | 23.1 | 25.8 | 25.7 | 24.8 | 24.4 | 26.2 | 25.3 | 24.5 | 26.1 | 24.2 | 26.4 | 26.1 | 26.3 | 26.4 | 25.7 | 25.2 | 25.7 | 24.8 | 25.2 | 25.5 | 25.1 | 25.9 | 26.4 | 26.0 | 25.4 | 26.5 | 24.2 | 25.3 | 26.3 | 24.5 | 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 | 0.9 | 0.1 | -0.7 | -1.0 | -1.7 | -3.0 | -2.6 | -3.4 | -3.7 | -3.8 | -3.1 | -4.6 | -2.1 | -1.6 | -1.3 | -1.7 | -2.8 | -1.9 | 0.8 | 1.0 | -0.9 | -0.4 | -1.2 | 0.1 | -0.1 | 0.9 | -0.3 | 1.0 | -1.3 | -3.8 | -2.2 |
| Davis | -0.2 | 1.7 | 2.0 | 1.8 | 1.8 | -0.3 | -2.4 | 0.1 | 1.7 | 0.5 | -0.2 | 0.3 | -1.4 | -1.1 | -0.9 | -0.5 | -1.2 | -3.2 | -3.6 | 1.0 | 0.8 | 2.1 | 0.0 | -1.8 | -1.4 | -0.8 | 0.4 | -2.9 | -2.5 | -1.5 | -0.1 |
| Macquarie Island | 6.8 | 5.5 | 5.8 | 6.7 | 5.4 | 6.7 | 6.7 | 6.6 | 5.5 | 4.3 | 4.1 | 4.5 | 4.2 | 4.7 | 5.3 | 5.6 | 6.9 | 6.3 | 6.9 | 7.6 | 7.8 | 4.6 | 4.3 | 4.5 | 4.5 | 4.9 | 7.2 | 7.8 | 4.2 | 5.0 | 3.6 |
| Mawson | -3.4 | -1.1 | 0.4 | -0.5 | -2.1 | -1.9 | -0.6 | -2.1 | -0.1 | 0.5 | 0.1 | 0.2 | 0.4 | -2.8 | -5.4 | -4.6 | -2.5 | -4.5 | -6.3 | -4.7 | -2.3 | -3.2 | 0.1 | -2.9 | -3.0 | -3.5 | -0.6 | -3.4 | -2.2 | -5.3 | |
|
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 |
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| Daily rainfall for January 2026 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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) | - | - | 2.6 | - | - | 5.8 | - | - | - | - | - | 0.8 | - | - | - | - | 2.0 | 1.2 | 0.4 | - | - | 0.2 | 8.0 | - | - | - | - | - | - | - | - | |
| Lord Howe Island Aero | - | - | 4.8 | - | 0.2 | 5.6 | 0.2 | - | - | - | - | - | - | 0.8 | - | - | 1.4 | 2.0 | 0.6 | - | 0.4 | 5.8 | - | - | - | - | - | - | - | |||
| Norfolk Island Aero | 1.0 | - | - | - | 0.2 | 0.2 | - | - | - | - | - | - | - | - | - | 0.4 | - | 2.0 | - | 93.6 | 166.4 | 28.6 | - | - | - | - | 0.2 | 15.0 | 6.4 | - | 8.6 | |
| Christmas Island Aero | 93.4 | - | 0.4 | 19.6 | 14.2 | 4.2 | - | - | 0.6 | - | - | - | 1.6 | 4.2 | 5.0 | 0.8 | 0.4 | - | 0.2 | 5.2 | 2.2 | 2.8 | 1.4 | 43.6 | 12.4 | 2.8 | 45.4 | 86.8 | 37.2 | 28.8 | 3.0 | |
| Cocos Island Airport | - | - | - | 19.4 | 70.2 | - | 0.4 | 0.2 | - | 4.0 | 1.0 | 0.4 | 0.8 | - | - | - | 4.0 | 1.4 | 2.4 | 6.4 | 2.0 | - | - | 7.6 | 0.2 | 2.6 | - | - | - | 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 | - | - | 0.6 | 0.4 | - | - | - | - | - | - | - | - | 0.2 | - | 2.6 | - | - | - | - | - | - | 6.3 | 1.4 | 2.0 | - | - | - | - | - | - | ||
| Davis | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.9 | 2.8 | - | - | - | 7.4 | - | |
| Macquarie Island | 0.2 | 0.2 | - | 8.6 | 5.2 | 3.8 | - | 2.8 | 3.6 | 2.0 | 0.2 | 1.2 | 2.6 | 0.4 | 0.2 | - | 2.0 | 0.6 | - | - | 0.2 | 18.6 | 2.6 | - | 0.2 | 0.2 | 0.8 | 12.8 | 3.0 | 3.2 | 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 Sunday 1 February 2026. 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 available years of record, excluding the current year. The length of record can
vary widely from site to site. Averages are not shown for sites with fewer 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
