Monday 3 August 2026 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in July 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 77.0 mm, this was close to the July average rainfall of 89.6 mm.
- At Christmas Island Aero, the mean maximum temperature was 0.8 °C above average and the mean minimum temperature was 0.3 °C above average.
- The monthly rainfall total at Cocos Island Airport was 170.4 mm, this was just below the July average rainfall of 208.3 mm.
- The mean maximum temperature at Cocos Island Airport was 1.2 °C above average and the mean minimum temperature was 0.8 °C above average.
Australia's Pacific Ocean islands
- Norfolk Island Aero recorded a monthly rainfall total of 196.0 mm, this was above the July average rainfall of 139.9 mm.
- At Norfolk Island Aero, the mean maximum and mean minimum temperatures were 0.8 °C and 0.7 °C above the July average, respectively.
- The monthly rainfall total at Lord Howe Island Aero was 106.0 mm, compared to the July average rainfall of 146.4 mm.
- At Lord Howe Island Aero, the mean maximum and mean minimum temperatures were 0.6 °C and 0.7 °C above the July average, respectively.
Australia's Antarctic and sub-Antarctic territories
- The strongest wind gust recorded at the Australian Antarctic stations during July was 152 km/h at Mawson on the afternoon of the 21st.
- Both mean maximum and mean minimum temperatures for July were below average at the Australian Antarctic stations.
- Davis had its coldest maximum , minimum and mean temperature since 1993.
- Monthly precipitation at Macquarie Island was 93.8 mm, this was above the July average rainfall of 76.3 mm.
- Both the mean maximum and mean minimum temperatures at Macquarie Island were 0.5 °C above the July average.
- The strongest wind gust recorded in July at Macquarie Island was 120km/h on the evening of the 16th and morning of the 17th.
Extremes Records Summaries Daily observations Important notes the top
| Lowest July mean maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent lower |
Average for July |
|||
| Davis | -18.9 | -19.7 | in 1993 | -14.3 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent lower values have gone unreported
| Lowest July mean minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent lower |
Average for July |
|||
| Davis | -26.7 | -28.6 | in 1985 | -20.8 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent lower values have gone unreported
| Lowest July mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent lower |
Average for July |
|||
| Davis | -22.8 | -23.2 | in 1993 | -17.6 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent lower values have gone unreported
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for July 2026 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for July 2026 |
Diff from average |
Highest for July 2026 |
Mean for July 2026 |
Diff from average |
Lowest for July 2026 |
Total for July 2026 |
Average for July |
Rank of July 2026 |
Fraction of July average |
|||
| Offshore Islands | ||||||||||||
| Lord Howe Island Aero | 19.7 | +0.6 | 22.4 | 14th | 14.7 | +0.7 | 11.5 | 11th | 106.0 | 146.4 | average | 72% |
| Norfolk Island Aero | 19.2 | +0.8 | 20.8 | 14th | 14.4 | +0.7 | 10.4 | 29th | 196.0 | 139.9 | high | 140% |
| Christmas Island Aero | 27.1 | +0.8 | 28.9 | 18th | 22.9 | +0.3 | 20.6 | 28th | 77.0 | 89.6 | average | 86% |
| Cocos Island Airport | 29.3 | +1.2 | 31.0 | 7th | 24.9 | +0.8 | 23.1 | 22nd | 170.4 | 208.3 | average | 82% |
| Antarctica and Macquarie Island | ||||||||||||
| Casey | -13.5 | -3.0 | -3.4 | 6th | -21.1 | -2.3 | -32.7 | 19th | 44.4 | 25.7 | high | 173% |
| Davis | -18.9 | -4.6 | -9.8 | 22nd | -26.7 | -5.9 | -36.8 | 21st | 10.5 | 8.0 | high | 131% |
| Macquarie Island | 5.5 | +0.5 | 8.2 | 2nd | 2.2 | +0.5 | -1.4 | 25th | 93.8 | 76.3 | high | 123% |
| Mawson | -19.0 | -4.1 | -10.3 | 27th | -26.5 | -5.6 | -30.9 | 20th | ||||
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for July 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 | 21.5 | 22.0 | 21.9 | 20.2 | 18.8 | 16.9 | 18.4 | 18.7 | 18.2 | 18.4 | 18.8 | 20.3 | 21.3 | 22.4 | 20.5 | 19.3 | 20.0 | 20.2 | 20.3 | 19.2 | 19.2 | 19.7 | 18.3 | 18.7 | 19.7 | 20.3 | 19.4 | 20.1 | 21.4 | 19.0 | 18.8 |
| Norfolk Island Aero | 19.9 | 20.0 | 19.8 | 20.5 | 20.4 | 16.6 | 18.0 | 19.0 | 18.0 | 18.3 | 18.0 | 19.1 | 19.7 | 20.8 | 20.1 | 19.8 | 18.4 | 18.3 | 18.1 | 19.1 | 18.6 | 19.3 | 19.3 | 20.4 | 18.7 | 20.3 | 18.7 | 18.2 | 19.1 | 20.3 | 19.3 |
| Christmas Island Aero | 27.2 | 27.2 | 27.7 | 28.1 | 28.1 | 28.0 | 27.8 | 27.4 | 27.4 | 27.5 | 27.4 | 27.5 | 27.2 | 27.5 | 27.1 | 27.2 | 27.4 | 28.9 | 27.4 | 26.8 | 25.7 | 26.2 | 26.4 | 27.5 | 26.7 | 26.1 | 24.8 | 26.1 | 25.7 | 26.9 | 26.4 |
| Cocos Island Airport | 28.1 | 27.9 | 28.3 | 29.5 | 29.1 | 30.0 | 31.0 | 28.5 | 28.8 | 29.2 | 28.9 | 30.5 | 29.9 | 29.8 | 30.9 | 30.1 | 29.9 | 29.9 | 30.3 | 29.6 | 29.1 | 28.9 | 28.9 | 29.0 | 28.7 | 28.5 | 29.4 | 28.9 | 29.2 | 28.3 | 29.5 | 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 | -8.4 | -5.5 | -9.6 | -6.1 | -3.9 | -3.4 | -6.1 | -9.0 | -9.9 | -10.9 | -11.3 | -16.5 | -17.2 | -20.4 | -25.9 | -26.7 | -22.0 | -25.0 | -26.3 | -23.1 | -20.8 | -16.5 | -9.0 | -9.7 | -9.9 | -14.6 | -12.1 | -9.7 | -8.4 | -6.3 | -15.4 |
| Davis | -18.5 | -19.3 | -13.9 | -16.7 | -22.4 | -20.8 | -12.7 | -16.7 | -19.7 | -18.9 | -20.4 | -18.1 | -17.7 | -19.3 | -20.0 | -13.4 | -19.8 | -27.3 | -27.4 | -28.6 | -12.3 | -9.8 | -11.5 | -11.7 | -21.4 | -24.9 | -21.5 | -17.3 | -25.6 | -18.7 | -18.7 |
| Macquarie Island | 6.5 | 8.2 | 7.1 | 4.4 | 4.9 | 5.5 | 4.8 | 5.3 | 6.4 | 7.1 | 7.1 | 7.6 | 6.2 | 4.6 | 5.9 | 6.6 | 4.4 | 4.4 | 6.1 | 6.2 | 5.7 | 6.5 | 4.8 | 1.2 | 4.6 | 6.5 | 6.6 | 4.6 | 2.5 | 3.3 | 5.3 |
| Mawson | -24.6 | -21.0 | -18.2 | -18.3 | -15.8 | -20.7 | -15.6 | -15.7 | -18.7 | -22.2 | -23.0 | -21.8 | -22.7 | -23.9 | -20.2 | -20.1 | -20.4 | -23.2 | -20.3 | -16.6 | -15.3 | -17.9 | -15.5 | -13.7 | -18.7 | -15.5 | -10.3 | -17.8 | -24.1 | -17.1 | -19.2 |
|
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 July 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 | 17.4 | 17.8 | 18.9 | 17.0 | 16.1 | 13.0 | 13.0 | 15.0 | 14.4 | 13.3 | 11.5 | 15.5 | 11.9 | 13.5 | 12.4 | 13.1 | 15.8 | 15.5 | 16.4 | 16.1 | 16.3 | 15.2 | 12.8 | 15.5 | 13.5 | 14.9 | 11.9 | 14.7 | 16.5 | 14.5 | 11.8 |
| Norfolk Island Aero | 15.0 | 16.2 | 15.9 | 15.8 | 16.2 | 12.3 | 11.8 | 14.6 | 14.0 | 14.2 | 12.1 | 11.6 | 13.1 | 14.0 | 15.2 | 14.9 | 15.7 | 16.1 | 14.8 | 16.1 | 15.7 | 15.5 | 13.3 | 15.6 | 14.6 | 13.8 | 15.1 | 13.9 | 10.4 | 14.8 | 14.5 |
| Christmas Island Aero | 20.7 | 21.5 | 22.8 | 23.5 | 24.1 | 24.3 | 24.6 | 24.1 | 23.0 | 22.4 | 22.5 | 23.7 | 23.2 | 24.1 | 24.0 | 23.2 | 23.6 | 23.9 | 23.6 | 22.5 | 23.4 | 20.6 | 21.6 | 22.9 | 23.0 | 21.3 | 21.1 | 20.6 | 22.4 | 23.3 | 23.5 |
| Cocos Island Airport | 24.5 | 23.5 | 23.9 | 25.1 | 23.7 | 24.7 | 25.0 | 24.8 | 23.5 | 25.0 | 24.1 | 24.3 | 25.7 | 24.4 | 26.8 | 26.6 | 26.4 | 26.5 | 23.9 | 25.0 | 24.2 | 23.1 | 25.5 | 25.7 | 23.2 | 24.3 | 25.1 | 26.4 | 26.4 | 24.6 | 24.8 | 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 | -19.5 | -14.2 | -13.5 | -21.5 | -20.4 | -9.7 | -12.7 | -18.9 | -16.9 | -17.5 | -14.4 | -18.8 | -21.2 | -23.0 | -29.4 | -31.2 | -32.2 | -27.6 | -32.7 | -31.8 | -30.6 | -26.8 | -26.9 | -19.8 | -15.1 | -18.5 | -20.7 | -20.0 | -16.1 | -14.2 | -19.3 |
| Davis | -27.5 | -26.1 | -27.8 | -24.8 | -26.0 | -28.5 | -27.4 | -23.3 | -22.9 | -23.8 | -25.2 | -26.1 | -26.9 | -21.6 | -22.8 | -25.0 | -20.1 | -30.5 | -34.3 | -35.4 | -36.8 | -31.9 | -19.2 | -19.4 | -22.4 | -27.4 | -31.0 | -26.7 | -26.0 | -31.3 | -30.8 |
| Macquarie Island | 6.2 | 4.2 | 4.3 | 1.9 | -0.1 | 2.2 | 2.9 | 1.0 | 3.3 | 2.4 | 2.7 | 6.1 | 5.7 | 2.5 | 0.5 | 2.0 | -0.5 | 1.3 | 3.0 | 3.3 | 4.5 | 3.8 | 3.5 | -1.0 | -1.4 | -1.3 | 2.8 | 1.7 | 0.5 | -0.8 | 1.0 |
| Mawson | -30.4 | -29.4 | -29.3 | -23.8 | -26.8 | -24.1 | -25.4 | -24.1 | -22.6 | -26.4 | -28.5 | -27.0 | -25.7 | -26.8 | -29.0 | -26.3 | -29.3 | -30.9 | -30.3 | -30.9 | -28.2 | -20.1 | -24.3 | -24.1 | -22.3 | -23.9 | -23.0 | -22.4 | -26.3 | -29.5 | -28.9 |
|
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 July 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) | 1.0 | - | 4.8 | 11.0 | 1.2 | 0.8 | 2.4 | 2.8 | 0.8 | 1.6 | 2.4 | 2.8 | 2.4 | 0.2 | 0.8 | 47.0 | 18.6 | 7.0 | 7.8 | 0.4 | - | 0.2 | 2.2 | 8.0 | 0.8 | - | 4.0 | 1.6 | - | 6.4 | 1.0 | |
| Lord Howe Island Aero | 0.2 | - | 5.8 | 10.2 | 2.6 | 1.6 | 2.0 | 2.6 | 1.6 | 5.2 | 0.4 | 0.6 | 5.8 | 0.2 | 2.0 | 23.6 | 7.8 | 2.8 | 6.4 | 0.4 | - | - | 1.4 | 6.0 | 1.4 | 1.0 | 2.0 | 4.2 | 0.2 | 6.2 | 1.8 | |
| Norfolk Island Aero | 0.8 | - | 1.8 | - | 0.2 | 5.2 | 8.0 | 1.4 | 2.4 | 0.8 | - | - | - | 4.8 | 0.2 | 2.6 | 8.6 | 19.2 | 37.8 | 84.2 | 1.2 | - | - | - | 2.2 | 0.6 | 1.4 | - | - | - | 12.6 | |
| Christmas Island Aero | - | 0.2 | - | - | - | - | - | - | 0.4 | 2.0 | - | - | 0.4 | - | - | - | - | - | 23.4 | 2.8 | - | 5.4 | 5.6 | - | 0.2 | 5.2 | 7.4 | 21.4 | 2.6 | - | - | |
| Cocos Island Airport | 14.2 | 6.0 | 4.6 | 3.4 | 11.4 | 2.4 | 11.2 | 3.6 | 55.4 | - | - | 7.2 | 0.2 | 7.2 | 0.2 | - | - | 1.6 | 8.4 | - | 8.0 | 10.0 | - | - | 6.2 | 0.4 | 3.8 | - | - | 0.6 | 4.4 | 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 | 19.4 | - | - | 4.2 | 0.4 | - | - | - | - | - | 0.1 | - | - | - | 1.6 | - | - | - | 0.4 | - | 9.2 | 7.4 | 1.6 | - | - | 0.1 | ||||||
| Davis | - | 0.4 | 0.6 | - | - | - | - | - | - | - | - | - | - | - | - | 0.2 | 5.6 | - | - | - | - | - | 3.2 | - | - | - | - | - | 0.5 | - | - | |
| Macquarie Island | 5.6 | 0.6 | 6.2 | 3.2 | 1.2 | 3.2 | 2.2 | 1.0 | 0.6 | 1.6 | 5.8 | 0.4 | 3.4 | 0.8 | 6.0 | 4.4 | 1.6 | 1.2 | 1.4 | 2.8 | 12.0 | 0.2 | 3.6 | 3.8 | 2.0 | 4.8 | 2.8 | 3.4 | 5.2 | 2.0 | 0.8 | |
|
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 Monday 3 August 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
