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Climate statistics for Australian locations
Monthly climate statistics
All years of record
WILLIS 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: WILLIS ISLAND | Site number: 200283 | Commenced: 1921 | Map | |
| Latitude: 16.29° S | Longitude: 149.97° E | Elevation: 9 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) | 30.8 | 30.5 | 30.0 | 29.0 | 27.8 | 26.6 | 26.1 | 26.4 | 27.4 | 28.7 | 29.9 | 30.7 | 28.7 | 97 | 1921 2025 |
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| Highest temperature (°C) | 35.1 | 35.2 | 33.8 | 33.9 | 31.5 | 32.2 | 29.8 | 30.0 | 31.6 | 32.4 | 33.6 | 34.8 | 35.2 | 98 | 1921 2025 |
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| Date | 03 Jan 2002 | 09 Feb 2002 | 04 Mar 1987 | 05 Apr 1942 | 24 May 1990 | 11 Jun 1925 | 03 Jul 1964 | 31 Aug 1974 | 23 Sep 1925 | 24 Oct 1985 | 22 Nov 2000 | 13 Dec 1959 | 09 Feb 2002 | ||||
| Lowest maximum temperature (°C) | 25.1 | 25.6 | 25.1 | 24.2 | 23.6 | 22.1 | 20.7 | 22.1 | 23.2 | 24.2 | 25.4 | 24.7 | 20.7 | 98 | 1921 2025 |
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| Date | 06 Jan 1951 | 10 Feb 1939 | 21 Mar 1997 | 23 Apr 1923 | 31 May 2000 | 28 Jun 2007 | 19 Jul 1965 | 29 Aug 1953 | 18 Sep 1962 | 01 Oct 1961 | 24 Nov 1980 | 31 Dec 1962 | 19 Jul 1965 | ||||
| Decile 1 maximum temperature (°C) | 29.2 | 28.8 | 28.7 | 27.7 | 26.5 | 25.1 | 24.6 | 25.0 | 26.0 | 27.3 | 28.6 | 29.3 | 95 | 1921 2025 |
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| Decile 9 maximum temperature(°C) | 32.3 | 31.9 | 31.2 | 30.1 | 29.0 | 28.0 | 27.4 | 27.7 | 28.7 | 30.1 | 31.2 | 32.0 | 95 | 1921 2025 |
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| Mean number of days ≥ 30 °C | 23.7 | 19.9 | 15.5 | 4.3 | 0.5 | 0.0 | 0.0 | 0.0 | 0.2 | 4.0 | 14.4 | 23.9 | 106.4 | 98 | 1921 2025 |
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| Mean number of days ≥ 35 °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 | 98 | 1921 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 | 98 | 1921 2025 |
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| Minimum temperature | |||||||||||||||||
| Mean minimum temperature (°C) | 25.8 | 25.8 | 25.5 | 24.9 | 23.9 | 22.8 | 22.1 | 22.0 | 22.7 | 23.7 | 24.8 | 25.5 | 24.1 | 97 | 1921 2025 |
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| Lowest temperature (°C) | 20.7 | 20.9 | 20.9 | 18.9 | 19.9 | 16.9 | 17.2 | 16.4 | 18.6 | 18.9 | 20.9 | 21.1 | 16.4 | 97 | 1921 2025 |
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| Date | 05 Jan 1943 | 26 Feb 1991 | 06 Mar 1937 | 30 Apr 1933 | 25 May 1935 | 29 Jun 1932 | 20 Jul 1965 | 05 Aug 1930 | 03 Sep 1972 | 08 Oct 1940 | 04 Nov 1930 | 09 Dec 1941 | 05 Aug 1930 | ||||
| Highest minimum temperature (°C) | 29.3 | 29.2 | 28.5 | 28.3 | 27.1 | 26.4 | 26.4 | 25.6 | 26.0 | 27.0 | 27.9 | 28.3 | 29.3 | 97 | 1921 2025 |
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| Date | 17 Jan 2025 | 13 Feb 2020 | 04 Mar 2024 | 02 Apr 2025 | 01 May 2016 | 01 Jun 1990 | 22 Jul 1962 | 31 Aug 2021 | 18 Sep 2022 | 31 Oct 2022 | 28 Nov 2018 | 17 Dec 2022 | 17 Jan 2025 | ||||
| Decile 1 minimum temperature (°C) | 24.2 | 24.1 | 24.0 | 23.4 | 22.3 | 21.1 | 20.4 | 20.5 | 21.2 | 22.3 | 23.4 | 24.1 | 95 | 1921 2025 |
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| Decile 9 minimum temperature (°C) | 27.2 | 27.2 | 26.8 | 26.2 | 25.3 | 24.3 | 23.5 | 23.4 | 23.9 | 25.1 | 26.1 | 26.8 | 95 | 1921 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 | 97 | 1921 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 | 97 | 1921 2025 |
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| Ground surface temperature | |||||||||||||||||
| Mean daily ground minimum temperature (°C) | 24.4 | 24.4 | 24.2 | 23.5 | 22.5 | 21.2 | 20.6 | 20.4 | 21.1 | 22.2 | 23.3 | 24.1 | 22.7 | 63 | 1930 2020 |
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| Lowest ground temperature (°C) | 13.4 | 13.7 | 18.0 | 18.4 | 14.3 | 11.9 | 11.0 | 11.1 | 10.2 | 14.0 | 15.8 | 16.7 | 10.2 | 63 | 1930 2020 |
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| Date | 31 Jan 1957 | 04 Feb 1957 | 29 Mar 1977 | 20 Apr 1979 | 22 May 1978 | 12 Jun 1974 | 05 Jul 1963 | 10 Aug 1960 | 16 Sep 1988 | 07 Oct 1972 | 03 Nov 1974 | 12 Dec 1955 | 16 Sep 1988 | ||||
| Mean number of days ground min. temp. ≤ -1 °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 | 63 | 1930 2020 |
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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) | 196.5 | 212.6 | 204.1 | 124.4 | 71.6 | 53.8 | 38.2 | 23.7 | 16.0 | 21.4 | 37.8 | 96.8 | 1099.5 | 102 | 1921 2025 |
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| Highest rainfall (mm) | 645.2 | 684.5 | 1484.8 | 510.7 | 394.4 | 319.7 | 252.8 | 216.3 | 206.4 | 165.8 | 408.2 | 463.6 | 2482.4 | 102 | 1921 2025 |
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| Date | 1953 | 1939 | 1997 | 1949 | 1994 | 1930 | 1950 | 1970 | 1933 | 1949 | 2010 | 2000 | 1997 | ||||
| Lowest rainfall (mm) | 10.7 | 10.0 | 7.2 | 10.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 240.6 | 102 | 1921 2025 |
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| Date | 1928 | 1990 | 1981 | 1966 | 2011 | 2011 | 2011 | 2011 | 2003 | 1993 | 1992 | 1934 | 1966 | ||||
| Decile 1 rainfall (mm) | 28.9 | 43.7 | 60.1 | 27.2 | 9.7 | 6.4 | 4.2 | 1.8 | 0.6 | 0.6 | 3.3 | 11.9 | 102 | n/a n/a |
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| Decile 5 (median) rainfall (mm) | 161.6 | 168.3 | 165.8 | 102.2 | 47.6 | 38.0 | 21.8 | 11.8 | 6.9 | 8.8 | 16.0 | 62.2 | 102 | n/a n/a |
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| Decile 9 rainfall (mm) | 405.0 | 427.1 | 383.1 | 239.2 | 157.6 | 119.8 | 82.8 | 48.7 | 39.2 | 62.2 | 88.7 | 201.7 | 102 | n/a n/a |
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| Highest daily rainfall (mm) | 294.8 | 329.2 | 335.8 | 229.9 | 246.4 | 178.2 | 162.0 | 116.8 | 72.8 | 121.9 | 119.6 | 170.9 | 335.8 | 93 | 1921 2025 |
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| Date | 17 Jan 1998 | 28 Feb 1935 | 11 Mar 1997 | 27 Apr 1934 | 09 May 1930 | 26 Jun 1988 | 24 Jul 1999 | 20 Aug 1988 | 15 Sep 2025 | 26 Oct 1949 | 30 Nov 1931 | 28 Dec 1933 | 11 Mar 1997 | ||||
| Mean number of days of rain | 15.1 | 16.1 | 17.7 | 14.6 | 12.8 | 10.8 | 9.7 | 7.5 | 5.6 | 5.2 | 6.8 | 10.1 | 132.0 | 102 | 1921 2025 |
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| Mean number of days of rain ≥ 1 mm | 10.6 | 11.7 | 12.4 | 9.3 | 7.1 | 5.8 | 4.4 | 3.3 | 2.4 | 2.3 | 3.6 | 6.6 | 79.5 | 93 | 1921 2025 |
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| Mean number of days of rain ≥ 10 mm | 4.2 | 4.6 | 4.3 | 2.8 | 1.5 | 1.0 | 0.8 | 0.3 | 0.3 | 0.4 | 0.8 | 2.2 | 23.2 | 93 | 1921 2025 |
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| Mean number of days of rain ≥ 25 mm | 2.1 | 2.2 | 2.1 | 1.2 | 0.6 | 0.4 | 0.3 | 0.2 | 0.1 | 0.1 | 0.3 | 1.0 | 10.6 | 93 | 1921 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) | 496 | 497 | 581 | 687 | 697 | 705 | 708 | 673 | 653 | 608 | 561 | 516 | 615 | 56 | 1952 2025 |
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| Maximum wind gust speed (km/h) | 161 | 202 | 143 | 118 | 85 | 102 | 97 | 98 | 89 | 111 | 89 | 141 | 202 | 81 | 1939 2025 |
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| Date | 05 Jan 1943 | 08 Feb 1957 | 06 Mar 1956 | 03 Apr 1989 | 12 May 2022 | 05 Jun 1989 | 07 Jul 1977 | 05 Aug 1961 | 08 Sep 1975 | 27 Oct 1952 | 28 Nov 1964 | 17 Dec 1989 | 08 Feb 1957 | ||||
| Mean daily sunshine (hours) | |
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| Mean daily solar exposure (MJ/m2) | |
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| Mean number of clear days | 3.8 | 2.5 | 3.2 | 3.7 | 4.6 | 4.6 | 5.6 | 6.9 | 8.8 | 9.5 | 7.8 | 6.4 | 67.4 | 80 | 1921 2010 |
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| Mean number of cloudy days | 14.6 | 15.2 | 14.8 | 13.0 | 10.7 | 10.3 | 10.0 | 7.5 | 6.2 | 4.9 | 5.9 | 9.1 | 122.2 | 80 | 1921 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) | 28.6 | 28.4 | 28.0 | 27.2 | 26.1 | 24.8 | 24.1 | 24.3 | 25.3 | 26.6 | 27.8 | 28.5 | 26.6 | 81 | 1921 2010 |
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| Mean 9am wet-bulb temperature (°C) | 25.6 | 25.8 | 25.3 | 24.2 | 22.9 | 21.5 | 20.7 | 20.8 | 21.6 | 22.9 | 24.1 | 25.0 | 23.4 | 81 | 1921 2010 |
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| Mean 9am dew-point temperature (°C) | 24.2 | 24.7 | 24.0 | 22.7 | 21.2 | 19.5 | 18.3 | 18.5 | 19.3 | 20.8 | 22.2 | 23.3 | 21.6 | 70 | 1921 2010 |
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| Mean 9am relative humidity (%) | 78 | 81 | 79 | 77 | 75 | 73 | 71 | 71 | 70 | 71 | 72 | 74 | 74 | 70 | 1921 2010 |
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| Mean 9am cloud cover (oktas) | 5.2 | 5.5 | 5.1 | 4.9 | 4.5 | 4.6 | 4.5 | 4.0 | 3.7 | 3.4 | 3.7 | 4.2 | 4.4 | 80 | 1921 2010 |
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| Mean 9am wind speed (km/h) | 19.4 | 19.8 | 23.1 | 27.3 | 27.1 | 27.1 | 27.5 | 26.6 | 25.0 | 22.7 | 20.2 | 18.9 | 23.7 | 85 | 1921 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) | 29.4 | 29.1 | 28.6 | 27.6 | 26.5 | 25.2 | 24.7 | 25.0 | 25.9 | 27.2 | 28.4 | 29.2 | 27.2 | 82 | 1921 2010 |
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| Mean 3pm wet-bulb temperature (°C) | 25.8 | 26.0 | 25.5 | 24.3 | 23.0 | 21.7 | 20.9 | 21.0 | 21.7 | 23.0 | 24.2 | 25.2 | 23.5 | 82 | 1921 2010 |
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| Mean 3pm dew-point temperature (°C) | 24.1 | 24.7 | 24.0 | 22.7 | 21.2 | 19.5 | 18.4 | 18.5 | 19.3 | 20.8 | 22.1 | 23.2 | 21.5 | 70 | 1921 2010 |
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| Mean 3pm relative humidity (%) | 74 | 78 | 77 | 75 | 74 | 71 | 69 | 68 | 68 | 69 | 69 | 71 | 72 | 70 | 1921 2010 |
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| Mean 3pm cloud cover (oktas) | 5.2 | 5.7 | 5.4 | 5.1 | 4.7 | 4.7 | 4.5 | 4.1 | 3.8 | 3.6 | 3.9 | 4.4 | 4.6 | 81 | 1921 2010 |
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| Mean 3pm wind speed (km/h) | 18.5 | 19.3 | 22.2 | 25.8 | 25.7 | 26.1 | 26.3 | 25.2 | 23.5 | 20.7 | 18.4 | 17.3 | 22.4 | 85 | 1921 2010 |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0032 Prepared at Thu 16 Oct 2025 02:35:28 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_200283_All.shtml
- Summary statistics and locational map for this site:
http://www.bom.gov.au/climate/averages/tables/cw_200283.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/IDCJCM0032_200283.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 Willis Island
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 16 Oct 2025 02:35:28 AM AEDT