Home › Cities › Australia › Western Australia › Kalgoorlie
Kalgoorlie, Western Australia climate
BSh Hot semi-arid
Kalgoorlie has a seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is January with an average daily high near 34°C, while the coldest is July averaging around 6°C at night. Around 261 mm of precipitation falls each year, peaking in February (36 mm) and easing off in September (12 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsKalgoorlie climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 32 | 29 | 26 | 21 | 18 | 18 | 19 | 23 | 27 | 30 | 32 |
| Avg temp (°C) | 26 | 25 | 23 | 19 | 15 | 12 | 12 | 13 | 16 | 19 | 22 | 25 |
| Avg low (°C) | 19 | 18 | 16 | 13 | 9 | 7 | 6 | 6 | 9 | 12 | 15 | 17 |
| Precipitation (mm) | 35 | 36 | 31 | 19 | 17 | 20 | 20 | 21 | 12 | 13 | 18 | 19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 32 | 29 | 26 | 21 | 18 |
| Avg temp (°C) | 26 | 25 | 23 | 19 | 15 | 12 |
| Avg low (°C) | 19 | 18 | 16 | 13 | 9 | 7 |
| Precipitation (mm) | 35 | 36 | 31 | 19 | 17 | 20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 19 | 23 | 27 | 30 | 32 |
| Avg temp (°C) | 12 | 13 | 16 | 19 | 22 | 25 |
| Avg low (°C) | 6 | 6 | 9 | 12 | 15 | 17 |
| Precipitation (mm) | 20 | 21 | 12 | 13 | 18 | 19 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 5 | 5 | 5 | 5 | 7 | 6 | 7 | 5 | 4 | 4 | 4 |
| Days with high ≥ 32°C (days) | 20 | 15 | 10 | 3 | 0.1 | — | — | 0.0 | 0.9 | 6 | 10 | 15 |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.4 | 1 | 0.6 | 0.1 | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 5 | 5 | 5 | 5 | 7 |
| Days with high ≥ 32°C (days) | 20 | 15 | 10 | 3 | 0.1 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 6 | 7 | 5 | 4 | 4 | 4 |
| Days with high ≥ 32°C (days) | — | 0.0 | 0.9 | 6 | 10 | 15 |
| Days with low ≤ 0°C (days) | 1 | 0.6 | 0.1 | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 44 | 42 | 42 | 40 | 39 | 36 | 35 | 33 | 36 | 38 | 36 |
| Clear days (≤ 30% cloud) | 15 | 12 | 14 | 13 | 14 | 14 | 15 | 16 | 16 | 16 | 15 | 16 |
| Partly cloudy days (30–70%) | 10 | 9 | 9 | 9 | 10 | 10 | 11 | 10 | 9 | 9 | 9 | 10 |
| Cloudy days (≥ 70%) | 6 | 8 | 8 | 8 | 7 | 6 | 5 | 5 | 4 | 6 | 6 | 6 |
| Relative humidity (%) | 39 | 44 | 49 | 54 | 60 | 67 | 67 | 62 | 55 | 46 | 42 | 38 |
| Wind speed (mph) | 9.1 | 8.8 | 7.8 | 6.6 | 6.2 | 6.5 | 6.6 | 7.0 | 7.8 | 8.2 | 8.7 | 8.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 44 | 42 | 42 | 40 | 39 |
| Clear days (≤ 30% cloud) | 15 | 12 | 14 | 13 | 14 | 14 |
| Partly cloudy days (30–70%) | 10 | 9 | 9 | 9 | 10 | 10 |
| Cloudy days (≥ 70%) | 6 | 8 | 8 | 8 | 7 | 6 |
| Relative humidity (%) | 39 | 44 | 49 | 54 | 60 | 67 |
| Wind speed (mph) | 9.1 | 8.8 | 7.8 | 6.6 | 6.2 | 6.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 36 | 35 | 33 | 36 | 38 | 36 |
| Clear days (≤ 30% cloud) | 15 | 16 | 16 | 16 | 15 | 16 |
| Partly cloudy days (30–70%) | 11 | 10 | 9 | 9 | 9 | 10 |
| Cloudy days (≥ 70%) | 5 | 5 | 4 | 6 | 6 | 6 |
| Relative humidity (%) | 67 | 62 | 55 | 46 | 42 | 38 |
| Wind speed (mph) | 6.6 | 7.0 | 7.8 | 8.2 | 8.7 | 8.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Kalgoorlie-boulder Airport, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.