Wednesday 1 July 2026 - Monthly Climate Summary for Remote Islands and Antarctica - Product code IDCKGC1RR0
Remote Islands and Antarctica in June 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 32.0 mm, this was below the June average rainfall of 163.7 mm.
- At Christmas Island Aero, the mean maximum temperature was 0.5 °C above average and the mean minimum temperature was 0.9 °C above average.
- The monthly rainfall total at Cocos Island Airport was 202.4 mm, this was close to the June average rainfall of 216.7 mm.
- The mean maximum temperature at Cocos Island Airport was 1.6 °C above the June average. It was the stations warmest June mean maximum temperature on record at 30.2 °C and the station also had its warmest June day on record on the 19th at 32.1 °C.
- Cocos Island Airport's minimum temperature was 1.2 °C above average and it was the stations warmest June mean minimum temperature on record at 25.8 °C.
- It was the warmest June on record for Cocos Island Airport at 28.0 °C, the previous record was 27.7 °C in 2004.
Australia's Pacific Ocean islands
- Norfolk Island Aero recorded a monthly rainfall total of 35.8 mm, this was very much below the June average rainfall of 142.6 mm and the lowest June rainfall since 2008.
- At Norfolk Island Aero, both the mean maximum and mean minimum temperatures were 0.7 °C above the June average.
- The monthly rainfall total at Lord Howe Island Aero was very low at 50.4 mm, compared to the June average rainfall of 164.9 mm.
- At Lord Howe Island Aero, both the mean maximum and mean minimum temperatures were 0.7 °C above the June average.
- On the 3rd, Lord Howe Island Aero had its warmest June day on record of 23.9 °C and on the 4th, the station had its warmest June night on record at 20.8 °C.
Australia's Antarctic and sub-Antarctic territories
- The strongest wind gust recorded at the Australian Antarctic stations during June was 183 km/h at Casey on the morning of the 21st. This was the highest June wind gust at the station since 2019.
- Both mean maximum and mean minimum temperatures for June were above average at the Australian Antarctic stations.
- Monthly precipitation at Macquarie Island was 47.0 mm, this was below the June average rainfall of 79.3 mm.
- The mean maximum and mean minimum temperatures at Macquarie Island were 1.2 °C and 1.1 °C above the June average, respectively.
- The strongest wind gust recorded in June at Macquarie Island was 156 km/h on the evening of the 7th.
Extremes Records Summaries Daily observations Important notes the top
| Record highest June temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Lord Howe Island Aero | 23.9 | on the 3rd | =23.9 | on 05 Jun 2003 | 38 | 20.0 |
| Cocos Island Airport | 32.1 | on the 19th | 32.0 | on 01 Jun 2025 | 75 | 28.6 |
| Record highest June mean maximum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for June |
||
| Cocos Island Airport | 30.2 | 29.7 | in 2024 | 75 | 28.6 |
| Record highest June daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Lord Howe Island Aero | 20.8 | on the 4th | 20.6 | on 01 Jun 2024 | 38 | 14.8 |
| Record highest June mean minimum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for June |
||
| Cocos Island Airport | 25.8 | 25.7 | in 2024 | 75 | 24.6 |
| Record highest June mean temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for June |
||
| Cocos Island Airport | 28.0 | 27.7 | in 2024 | 75 | 26.6 |
Extremes Records Summaries Daily observations Important notes the top
| Summary statistics for June 2026 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for June 2026 |
Diff from average |
Highest for June 2026 |
Mean for June 2026 |
Diff from average |
Lowest for June 2026 |
Total for June 2026 |
Average for June |
Rank of June 2026 |
Fraction of June average |
|||
| Offshore Islands | ||||||||||||
| Lord Howe Island Aero | 20.7 | +0.7 | 23.9 | 3rd | 15.5 | +0.7 | 10.3 | 17th | 50.4 | 164.9 | v low | 31% |
| Norfolk Island Aero | 20.1 | +0.7 | 22.8 | 4th | 15.5 | +0.7 | 13.4 | 28th | 35.8 | 142.6 | v low | 25% |
| Christmas Island Aero | 27.6 | +0.5 | 28.3 | 6th | 24.2 | +0.9 | 22.6 | 12th | 32.0 | 163.7 | low | 20% |
| Cocos Island Airport | 30.2 | +1.6 | 32.1 | 19th | 25.8 | +1.2 | 23.4 | 11th | 202.4 | 216.7 | average | 93% |
| Antarctica and Macquarie Island | ||||||||||||
| Casey | -13.8 | -3.0 | -3.7 | 4th | -22.9 | -4.3 | -34.4 | 27th | 20.7 | 25.5 | average | 81% |
| Davis | -14.1 | -1.6 | -3.9 | 15th | -21.5 | -2.7 | -34.2 | 29th | 38.2 | 9.0 | highest | 424% |
| Macquarie Island | 6.4 | +1.2 | 8.3 | 10th | 2.8 | +1.1 | 0.0 | 4th | 47.0 | 79.3 | v low | 59% |
| Mawson | -16.4 | -2.9 | -8.7 | 15th | -22.8 | -3.2 | -31.0 | 9th | ||||
Extremes Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for June 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 |
| Lord Howe Island Aero | 20.9 | 22.5 | 23.9 | 23.2 | 19.5 | 19.7 | 20.9 | 20.8 | 20.8 | 21.4 | 21.2 | 21.3 | 21.4 | 21.6 | 21.3 | 19.8 | 19.8 | 21.2 | 22.1 | 23.2 | 21.8 | 18.7 | 20.0 | 19.7 | 18.2 | 18.2 | 18.9 | 18.9 | 19.1 | 20.6 |
| Norfolk Island Aero | 22.0 | 21.5 | 22.2 | 21.9 | 22.5 | 20.6 | 19.5 | 19.6 | 20.1 | 19.2 | 19.5 | 20.1 | 19.8 | 20.3 | 19.7 | 19.4 | 21.1 | 19.1 | 20.0 | 19.6 | 19.8 | 19.7 | 20.2 | 18.5 | 18.1 | 18.1 | 18.6 | 19.4 | 20.0 | |
| Christmas Island Aero | 28.0 | 27.8 | 28.2 | 28.0 | 27.3 | 28.3 | 28.0 | 27.9 | 27.6 | 27.9 | 27.9 | 27.4 | 26.8 | 28.0 | 28.2 | 27.9 | 28.0 | 26.9 | 26.7 | 26.5 | 27.0 | 27.9 | 27.2 | 28.0 | 28.2 | 28.1 | 27.8 | 27.2 | 27.6 | 26.8 |
| Cocos Island Airport | 28.8 | 30.4 | 31.3 | 30.5 | 30.4 | 29.9 | 29.8 | 30.3 | 30.2 | 31.2 | 31.1 | 29.9 | 29.8 | 29.6 | 30.2 | 30.8 | 30.2 | 31.0 | 32.1 | 31.5 | 29.8 | 30.9 | 30.7 | 29.8 | 31.6 | 29.3 | 29.9 | 27.8 | 29.1 | 28.3 | 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 |
| Casey | -7.8 | -8.2 | -5.5 | -3.7 | -11.3 | -6.7 | -8.0 | -9.3 | -10.9 | -14.4 | -13.8 | -11.6 | -15.7 | -16.7 | -7.8 | -10.8 | -14.4 | -16.2 | -19.1 | -25.2 | -28.9 | -8.8 | -14.2 | -15.3 | -24.0 | -22.6 | -17.7 | -15.7 | -17.6 | -13.2 |
| Davis | -10.8 | -8.4 | -10.5 | -17.0 | -22.5 | -21.6 | -19.9 | -18.0 | -18.5 | -10.1 | -6.0 | -11.1 | -9.8 | -6.9 | -3.9 | -5.2 | -9.2 | -9.7 | -10.1 | -14.2 | -13.0 | -12.6 | -17.4 | -11.4 | -11.4 | -18.6 | -23.2 | -24.8 | -22.3 | -24.6 |
| Macquarie Island | 7.2 | 7.2 | 3.2 | 3.1 | 5.6 | 5.5 | 7.4 | 8.0 | 8.3 | 8.3 | 7.6 | 7.2 | 8.0 | 6.5 | 7.4 | 5.4 | 5.9 | 4.7 | 5.7 | 5.8 | 6.8 | 6.9 | 5.3 | 5.7 | 6.8 | 7.1 | 5.7 | 6.5 | 7.1 | 7.5 |
| Mawson | -15.3 | -13.1 | -13.0 | -16.6 | -19.0 | -19.6 | -20.5 | -21.1 | -17.4 | -14.6 | -14.0 | -17.1 | -11.6 | -9.4 | -8.7 | -14.3 | -10.6 | -15.2 | -20.6 | -14.8 | -11.3 | -12.4 | -18.2 | -15.5 | -19.0 | -20.7 | -20.3 | -21.7 | -22.4 | -23.9 |
|
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 June 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 |
| Lord Howe Island Aero | 14.9 | 13.9 | 19.1 | 20.8 | 14.2 | 14.4 | 16.2 | 15.0 | 15.4 | 16.7 | 16.3 | 18.2 | 18.1 | 17.8 | 12.2 | 16.1 | 10.3 | 14.7 | 13.5 | 18.2 | 16.4 | 17.0 | 13.9 | 15.3 | 15.2 | 14.1 | 13.4 | 14.0 | 14.1 | 14.8 |
| Norfolk Island Aero | 16.9 | 16.0 | 14.0 | 17.8 | 16.9 | 14.4 | 16.5 | 15.5 | 15.3 | 15.7 | 15.4 | 15.7 | 16.1 | 16.0 | 17.1 | 15.5 | 14.9 | 16.0 | 14.2 | 16.0 | 14.9 | 14.4 | 15.6 | 15.6 | 13.7 | 13.8 | 13.4 | 16.0 | 15.4 | |
| Christmas Island Aero | 24.4 | 23.0 | 24.9 | 24.8 | 25.0 | 25.3 | 24.9 | 24.5 | 24.3 | 24.1 | 24.4 | 22.6 | 23.7 | 25.4 | 24.9 | 24.7 | 24.9 | 23.4 | 24.0 | 23.3 | 23.4 | 23.6 | 23.2 | 23.8 | 24.4 | 24.8 | 24.3 | 24.4 | 24.3 | 24.4 |
| Cocos Island Airport | 25.0 | 23.9 | 26.7 | 26.4 | 27.2 | 27.4 | 26.2 | 25.7 | 27.0 | 26.8 | 23.4 | 25.3 | 26.2 | 24.8 | 25.4 | 27.0 | 26.2 | 26.6 | 25.7 | 25.2 | 24.8 | 26.3 | 25.3 | 24.0 | 26.2 | 26.8 | 27.0 | 25.2 | 24.4 | 24.6 | 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 |
| Casey | -24.0 | -20.5 | -13.9 | -12.9 | -16.2 | -22.9 | -19.3 | -10.8 | -13.7 | -16.0 | -23.7 | -27.3 | -19.4 | -19.9 | -24.7 | -19.6 | -18.4 | -24.0 | -21.6 | -28.9 | -30.9 | -34.3 | -34.3 | -18.2 | -31.0 | -29.1 | -34.4 | -33.9 | -21.6 | -21.8 |
| Davis | -24.8 | -19.6 | -11.3 | -17.5 | -24.1 | -26.0 | -26.5 | -26.3 | -20.8 | -33.3 | -29.5 | -12.2 | -14.5 | -15.5 | -16.5 | -8.7 | -14.3 | -13.8 | -13.0 | -14.2 | -23.2 | -24.9 | -17.8 | -29.1 | -29.3 | -22.7 | -24.5 | -29.5 | -34.2 | -27.1 |
| Macquarie Island | 1.7 | 4.5 | 0.8 | 0.0 | 0.8 | 2.2 | 1.9 | 0.7 | 2.7 | 6.4 | 6.5 | 6.3 | 5.2 | 6.0 | 1.3 | 3.2 | 0.2 | 0.4 | 1.9 | 1.6 | 2.7 | 3.1 | 1.9 | 1.3 | 1.7 | 5.6 | 2.6 | 2.5 | 2.6 | 5.9 |
| Mawson | -24.7 | -24.0 | -18.8 | -17.7 | -22.6 | -25.5 | -25.2 | -24.2 | -31.0 | -30.5 | -18.1 | -19.5 | -21.7 | -18.4 | -15.7 | -19.3 | -19.6 | -16.1 | -22.7 | -24.7 | -24.2 | -17.5 | -23.1 | -24.2 | -20.7 | -22.7 | -26.9 | -26.9 | -28.0 | -30.1 |
|
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 June 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 | |
| Lord Howe Island (Milky Way) | 6.0 | 0.6 | - | 0.4 | 3.2 | 1.2 | 2.0 | 3.6 | 2.0 | - | - | - | 0.6 | - | 0.2 | 5.2 | - | - | - | 0.4 | 2.0 | 0.2 | 17.2 | 2.2 | 0.4 | 2.6 | 1.6 | 4.0 | 1.4 | 2.0 | |
| Lord Howe Island Aero | 2.2 | - | - | - | 3.2 | 2.6 | 0.4 | 0.6 | 2.0 | - | 0.4 | - | - | - | - | 2.4 | - | - | - | - | 0.6 | 0.4 | 16.8 | 5.6 | 1.0 | 3.0 | 1.6 | 4.0 | 3.6 | - | |
| Norfolk Island Aero | 1.6 | 2.6 | - | - | 11.0 | 2.8 | 0.4 | 0.2 | - | 2.6 | 2.4 | 0.4 | 0.6 | 0.8 | - | 0.2 | 0.4 | - | 2.2 | - | - | - | - | - | 0.4 | 2.4 | 1.8 | 1.6 | 0.2 | 1.2 | |
| Christmas Island Aero | - | 4.4 | 0.2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.0 | 3.0 | 8.0 | 9.0 | 0.6 | 2.6 | 0.2 | - | 2.0 | - | - | - | - | |
| Cocos Island Airport | 8.6 | 8.4 | - | 0.8 | - | - | 9.0 | 15.2 | - | - | - | - | 0.4 | 10.0 | 3.4 | - | 4.4 | 0.4 | 10.2 | 0.8 | 21.2 | 15.8 | 2.4 | 65.6 | 0.4 | - | - | 3.2 | 6.6 | 15.6 | 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 |
| Casey | - | 2.8 | 1.5 | - | - | - | 0.8 | 1.2 | - | - | 0.8 | 1.0 | 1.4 | 2.0 | - | 1.8 | - | 1.0 | - | 2.0 | - | 1.8 | - | - | - | - | 2.4 | 0.2 | - | ||
| Davis | 5.4 | 0.4 | - | 0.4 | - | - | - | - | 1.8 | - | 4.8 | - | - | 5.0 | 0.2 | 2.6 | 3.0 | - | - | 1.0 | 0.8 | 0.2 | 1.4 | - | 9.2 | 1.6 | - | - | - | 0.4 | |
| Macquarie Island | - | 1.0 | 0.2 | - | 0.4 | 2.6 | 3.2 | 6.4 | 0.4 | 0.2 | 1.2 | 0.4 | 2.6 | 4.8 | 0.4 | 6.6 | 1.2 | 1.2 | 1.6 | 1.4 | 0.6 | 1.6 | 2.4 | 0.6 | 3.2 | 0.4 | 1.0 | 0.2 | 0.2 | 1.0 | |
|
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 Wednesday 1 July 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
