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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Voice Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Kalgoorlie has a hot semi-arid climate with very hot summers, mild winters, and low year-round rainfall. The live forecast above gives today’s conditions, but the pattern is consistent: summer heatwaves push past 40°C, while winter days stay mild with cool overnight temperatures.
What makes Kalgoorlie’s weather different from coastal WA?
Kalgoorlie sits 600 kilometres inland, so it misses the cooling sea breezes that moderate Perth weather. Summer days are dry and intense, with January as the hottest month. Winter brings clear, still nights that can drop below 5°C. The Australia weather hub shows how this inland position creates a wider temperature range than the coast.
Rainfall is sparse and unreliable. Most falls in late summer from sporadic thunderstorms, not steady winter fronts. The kalgoorlie weather bom data shows an average of just 260 millimetres a year. The kalgoorlie weather radar 256 km loop is the best way to track those fast-moving summer storms before they arrive.
How do seasons affect a visit to Kalgoorlie?
Autumn (March to May) and spring (September to November) are the most comfortable times. Days sit in the low 20s to low 30s, and the sky is mostly clear. The weather in kalgoorlie 10 days outlook is usually reliable in these transition seasons because the atmosphere is stable.
Summer is punishing for outdoor work. By late morning the heat is intense, and the kalgoorlie weather observations often record humidity below 20 per cent. If you are checking the kalgoorlie weather 14 day forecast or kalgoorlie weather 28 day forecast, look for consecutive hot days above 38°C — those are the ones that strain infrastructure. Winter demands warm layers for the early morning and evening, but midday is pleasant.
Does Kalgoorlie get enough rain to fill the Super Pit?
No. The open-cut gold mine uses recycled process water, not rainfall. Local rainfall is too low and erratic to rely on for any large-scale water supply. The kalgoorlie weather by month averages show every month is dry.
Is the Kalgoorlie weather radar reliable for storm spotting?
The kalgoorlie weather radar at 256 km range gives good coverage for approaching thunderstorms from the east and south. It has gaps to the west due to terrain, so always cross-check with satellite images for that direction.
How does Kalgoorlie compare to Perth Weather in summer?
Kalgoorlie is consistently 5–8°C hotter than Perth on summer afternoons because it lacks coastal moderation. Perth gets sea breezes by early afternoon; Kalgoorlie gets dry northerly winds that push temperatures into the low 40s.