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Climate statistics for Australian locations
Monthly climate statistics
All years of record
SWEERS ISLAND
An extended list of climate statistics recorded is provided below. There is also a summary table for printing with the commonly requested statistics and a map showing the location of this site. Monthly statistics are only included if there are more than 10 years of suitable data.
Note: Many statistics are updated quarterly and recent weather events may not be represented in the statistics below. For more current information on recent extreme values, please refer to the corresponding Daily rainfall, Maximum temperature and Minimum temperature data tables for this site, and our Australian Climate and Weather Extremes Monitoring System. Missing observations associated with the observer being unavailable (where observations are undertaken manually), a failure in the observing equipment, or when an event has produced suspect data may result in an extreme event not being recorded.Site details
| Site name: SWEERS ISLAND | Site number: 029139 | Commenced: 1893 | Map | |
| Latitude: 17.11° S | Longitude: 139.60° E | Elevation: 4 m | Operational status: Open | |
| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
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| Temperature | |||||||||||||||||
| Maximum temperature | |||||||||||||||||
| Mean maximum temperature (°C) | 32.6 | 32.4 | 32.3 | 31.5 | 28.6 | 26.0 | 25.5 | 27.0 | 29.6 | 32.0 | 33.2 | 33.7 | 30.4 | 24 | 2001 2025 |
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| Highest temperature (°C) | 39.0 | 38.1 | 37.9 | 36.0 | 33.7 | 32.0 | 30.7 | 32.8 | 35.8 | 38.5 | 39.2 | 39.5 | 39.5 | 24 | 2001 2025 |
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| Date | 19 Jan 2020 | 29 Feb 2016 | 01 Mar 2016 | 05 Apr 2015 | 05 May 2015 | 01 Jun 2015 | 31 Jul 2010 | 29 Aug 2021 | 26 Sep 2016 | 28 Oct 2003 | 14 Nov 2004 | 06 Dec 2012 | 06 Dec 2012 | ||||
| Lowest maximum temperature (°C) | 25.0 | 26.0 | 25.5 | 19.9 | 18.1 | 14.8 | 15.6 | 20.7 | 25.1 | 26.7 | 26.0 | 26.6 | 14.8 | 24 | 2001 2025 |
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| Date | 16 Jan 2003 | 19 Feb 2017 | 09 Mar 2023 | 26 Apr 2012 | 25 May 2012 | 21 Jun 2007 | 15 Jul 2016 | 17 Aug 2007 | 19 Sep 2010 | 23 Oct 2016 | 03 Nov 2010 | 18 Dec 2015 | 21 Jun 2007 | ||||
| Decile 1 maximum temperature (°C) | 29.5 | 29.8 | 29.9 | 29.5 | 26.2 | 23.1 | 22.9 | 24.9 | 27.8 | 30.2 | 31.6 | 31.5 | 20 | 2001 2025 |
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| Decile 9 maximum temperature(°C) | 35.0 | 34.5 | 34.0 | 33.1 | 30.8 | 28.4 | 27.7 | 29.2 | 31.6 | 34.2 | 34.7 | 35.7 | 20 | 2001 2025 |
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| Mean number of days ≥ 30 °C | 27.3 | 24.9 | 27.8 | 25.9 | 8.1 | 0.3 | 0.0 | 1.4 | 12.0 | 28.0 | 28.2 | 29.7 | 213.6 | 24 | 2001 2025 |
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| Mean number of days ≥ 35 °C | 3.6 | 1.9 | 1.4 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 3.1 | 7.0 | 18.5 | 24 | 2001 2025 |
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| Mean number of days ≥ 40 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 24 | 2001 2025 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 26.5 | 26.2 | 26.2 | 24.9 | 21.8 | 18.8 | 17.9 | 18.9 | 22.1 | 25.1 | 26.6 | 27.0 | 23.5 | 23 | 2001 2025 |
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| Lowest temperature (°C) | 17.5 | 20.6 | 19.5 | 17.3 | 12.9 | 11.2 | 9.1 | 10.7 | 14.0 | 18.9 | 18.0 | 20.2 | 9.1 | 24 | 2001 2025 |
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| Date | 04 Jan 2002 | 17 Feb 2017 | 24 Mar 2003 | 29 Apr 2008 | 23 May 2020 | 20 Jun 2004 | 01 Jul 2002 | 05 Aug 2002 | 12 Sep 2019 | 08 Oct 2009 | 24 Nov 2002 | 29 Dec 2024 | 01 Jul 2002 | ||||
| Highest minimum temperature (°C) | 31.5 | 30.3 | 31.5 | 29.0 | 27.9 | 25.1 | 22.7 | 23.9 | 26.8 | 28.6 | 30.4 | 31.0 | 31.5 | 24 | 2001 2025 |
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| Date | 19 Jan 2020 | 16 Feb 2020 | 03 Mar 2022 | 02 Apr 2015 | 04 May 2016 | 06 Jun 2014 | 12 Jul 2017 | 27 Aug 2009 | 29 Sep 2016 | 29 Oct 2022 | 29 Nov 2015 | 10 Dec 2016 | 03 Mar 2022 | ||||
| Decile 1 minimum temperature (°C) | 23.8 | 24.0 | 23.7 | 22.0 | 18.4 | 15.4 | 14.9 | 16.0 | 19.4 | 23.0 | 24.0 | 24.0 | 19 | 2001 2025 |
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| Decile 9 minimum temperature (°C) | 29.0 | 28.8 | 28.4 | 27.3 | 24.7 | 21.9 | 20.6 | 21.8 | 24.5 | 27.1 | 28.3 | 29.1 | 19 | 2001 2025 |
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| Mean number of days ≤ 2 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 24 | 2001 2025 |
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| Mean number of days ≤ 0 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 24 | 2001 2025 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | |
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| Lowest ground temperature (°C) | |
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| Date | |||||||||||||||||
| Mean number of days ground min. temp. ≤ -1 °C | |
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| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
| Rainfall | |||||||||||||||||
| Mean rainfall (mm) | 327.8 | 343.1 | 237.2 | 48.9 | 5.6 | 3.9 | 3.0 | 1.4 | 4.1 | 10.1 | 69.4 | 149.0 | 1201.3 | 29 | 1893 2025 |
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| Highest rainfall (mm) | 741.5 | 1364.5 | 1066.5 | 349.1 | 37.7 | 44.2 | 39.6 | 21.8 | 55.9 | 39.0 | 207.0 | 415.7 | 2393.5 | 29 | 1893 2025 |
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| Date | 2006 | 2017 | 2011 | 2006 | 2016 | 1894 | 2006 | 1893 | 1895 | 2007 | 2017 | 1897 | 2011 | ||||
| Lowest rainfall (mm) | 9.2 | 0.0 | 9.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.2 | 599.8 | 29 | 1893 2025 |
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| Date | 1893 | 1900 | 2020 | 2005 | 2025 | 2023 | 2024 | 2025 | 2024 | 2023 | 2006 | 2023 | 2005 | ||||
| Decile 1 rainfall (mm) | 109.0 | 72.4 | 17.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 7.0 | 45.0 | 31 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 260.2 | 332.6 | 157.3 | 20.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 56.0 | 113.6 | 31 | n/a n/a |
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| Decile 9 rainfall (mm) | 656.2 | 613.8 | 506.9 | 111.0 | 22.1 | 6.3 | 9.8 | 3.5 | 8.2 | 30.2 | 156.2 | 311.8 | 31 | n/a n/a |
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| Highest daily rainfall (mm) | 223.0 | 227.0 | 280.0 | 171.0 | 29.5 | 42.4 | 23.4 | 21.8 | 55.9 | 35.0 | 128.8 | 181.4 | 280.0 | 29 | 1893 2025 |
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| Date | 04 Jan 2021 | 16 Feb 2024 | 18 Mar 2025 | 25 Apr 2022 | 25 May 1901 | 21 Jun 1894 | 14 Jul 2006 | 19 Aug 1893 | 18 Sep 1895 | 30 Oct 2007 | 24 Nov 1895 | 31 Dec 1897 | 18 Mar 2025 | ||||
| Mean number of days of rain | 14.8 | 14.0 | 10.7 | 3.5 | 1.0 | 0.7 | 0.6 | 0.4 | 0.5 | 1.1 | 4.8 | 9.0 | 61.1 | 29 | 1893 2025 |
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| Mean number of days of rain ≥ 1 mm | 11.2 | 11.0 | 8.4 | 2.6 | 0.6 | 0.4 | 0.3 | 0.2 | 0.2 | 0.8 | 3.5 | 7.2 | 46.4 | 29 | 1893 2025 |
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| Mean number of days of rain ≥ 10 mm | 6.2 | 6.4 | 4.7 | 1.0 | 0.2 | 0.1 | 0.1 | 0.0 | 0.1 | 0.4 | 1.8 | 3.5 | 24.5 | 29 | 1893 2025 |
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| Mean number of days of rain ≥ 25 mm | 3.5 | 4.1 | 2.5 | 0.5 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.9 | 1.8 | 13.7 | 29 | 1893 2025 |
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| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
| Other daily elements | |||||||||||||||||
| Mean daily wind run (km) | |
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| Maximum wind gust speed (km/h) | 97 | 104 | 87 | 78 | 67 | 71 | 68 | 65 | 67 | 74 | 91 | 74 | 104 | 18 | 2001 2022 |
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| Date | 23 Feb 2020 | 23 Feb 2020 | |||||||||||||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | 20.7 | 21.1 | 21.6 | 21.5 | 19.0 | 17.8 | 18.8 | 21.6 | 24.3 | 26.0 | 25.0 | 23.4 | 21.7 | 19 | 2007 2025 |
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| Mean number of clear days | 9 | 2001 2010 |
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| Mean number of cloudy days | 9 | 2001 2010 |
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| Mean daily evaporation (mm) | |
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| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
| 9 am conditions | |||||||||||||||||
| Mean 9am temperature (°C) | 9 | 2001 2010 |
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| Mean 9am wet-bulb temperature (°C) | 8 | 2001 2010 |
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| Mean 9am dew-point temperature (°C) | 8 | 2001 2010 |
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| Mean 9am relative humidity (%) | 8 | 2001 2010 |
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| Mean 9am cloud cover (oktas) | 9 | 2001 2010 |
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| Mean 9am wind speed (km/h) | 9 | 2001 2010 |
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| 9am wind speed vs direction plot | |
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| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
| 3 pm conditions | |||||||||||||||||
| Mean 3pm temperature (°C) | 9 | 2001 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 8 | 2001 2010 |
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| Mean 3pm dew-point temperature (°C) | 8 | 2001 2010 |
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| Mean 3pm relative humidity (%) | 8 | 2001 2010 |
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| Mean 3pm cloud cover (oktas) | 9 | 2001 2010 |
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| Mean 3pm wind speed (km/h) | 9 | 2001 2010 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0036 Prepared at Thu 16 Oct 2025 02:22:10 AM AEDT
Monthly statistics are only included if there are more than 10 years of data. The number of years (provided in the 2nd last column of the table) may differ between elements if the observing program at the site changed. More detailed data for individual sites can be obtained by contacting the Bureau.
Related Links
- This page URL: http://www.bom.gov.au/climate/averages/tables/cw_029139_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_029139.shtml - About climate averages: http://www.bom.gov.au/climate/cdo/about/about-stats.shtml
- Data file (csv): http://www.bom.gov.au/clim_data/cdio/tables/text/IDCJCM0036_029139.csv
- Climate averages home page URL: http://www.bom.gov.au/climate/data/index.shtml
- Bureau of Meteorology website: http://www.bom.gov.au
Related information
Maps
- Long term climatology maps for selected elements
- Rainfall maps and temperature maps based on recent observations
Recent observations for this site
- Daily Weather Observations from this site are included in the Daily Weather Observations Sweers Island
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 16 Oct 2025 02:22:10 AM AEDT