Best time to visit Kalgoorlie–Boulder
The best time to visit Kalgoorlie–Boulder is March–June and August–November, judged on twenty years of weather records and the events worth going for.
Kalgoorlie–Boulder, Western Australia, Australia
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 33.7 °C / 93 °F | 19.1 °C / 66 °F | 31 mm / 1.2 in | good month |
| February | 32.7 °C / 91 °F | 19.1 °C / 66 °F | 26 mm / 1 in | good month |
| March | 29.3 °C / 85 °F | 17.1 °C / 63 °F | 30 mm / 1.2 in | best month |
| April | 25.5 °C / 78 °F | 13.9 °C / 57 °F | 16 mm / 0.6 in | best month |
| May | 21.1 °C / 70 °F | 9.6 °C / 49 °F | 12 mm / 0.5 in | best month |
| June | 17.4 °C / 63 °F | 7.2 °C / 45 °F | 22 mm / 0.9 in | best month |
| July | 17.1 °C / 63 °F | 6 °C / 43 °F | 19 mm / 0.7 in | good month |
| August | 19.7 °C / 67 °F | 7.2 °C / 45 °F | 16 mm / 0.6 in | best month |
| September | 22.9 °C / 73 °F | 9.1 °C / 48 °F | 11 mm / 0.4 in | best month |
| October | 27.1 °C / 81 °F | 12.7 °C / 55 °F | 18 mm / 0.7 in | best month |
| November | 29.4 °C / 85 °F | 14.9 °C / 59 °F | 21 mm / 0.8 in | best month |
| December | 32.5 °C / 91 °F | 17.4 °C / 63 °F | 15 mm / 0.6 in | good month |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: good
- FFebruary: good
- MMarch: best
- AApril: best
- MMay: best
- JJune: best
- JJuly: good
- AAugust: best
- SSeptember: best
- OOctober: best
- NNovember: best
- DDecember: good
- Best
- March–June, August–November
- Good
- July, December–February
Why these months
January · good
In its favour: precipitation 31 mm / 1.2 in, share of daylight that is sunny 90%, wet days 3.5 days, days with heavy rain 0.8 days, relative humidity 43%, average daily low 19.1 °C / 66 °F.
Against: feels like (high) 32.4 °C / 90 °F, average daily high 33.7 °C / 93 °F.
February · good
In its favour: precipitation 26 mm / 1 in, share of daylight that is sunny 85%, wet days 3.5 days, days with heavy rain 0.9 days, relative humidity 45%, average daily low 19.1 °C / 66 °F.
Against: average daily high 32.7 °C / 91 °F, feels like (high) 31.4 °C / 89 °F.
March · best
In its favour: feels like (high) 27.7 °C / 82 °F, precipitation 30 mm / 1.2 in, share of daylight that is sunny 86%, wet days 3.2 days, days with heavy rain 0.8 days, average daily high 29.3 °C / 85 °F, average daily low 17.1 °C / 63 °F, relative humidity 51%.
April · best
In its favour: feels like (high) 23.1 °C / 74 °F, average daily high 25.5 °C / 78 °F, precipitation 16 mm / 0.6 in, share of daylight that is sunny 86%, wet days 2.6 days, days with heavy rain 0.6 days, average daily low 13.9 °C / 57 °F, relative humidity 54%.
May · best
In its favour: feels like (high) 17.9 °C / 64 °F, average daily high 21.1 °C / 70 °F, precipitation 12 mm / 0.5 in, share of daylight that is sunny 86%, wet days 2 days, days with heavy rain 0.2 days, relative humidity 59%, average daily low 9.6 °C / 49 °F.
June · best
In its favour: precipitation 22 mm / 0.9 in, share of daylight that is sunny 81%, feels like (high) 14 °C / 57 °F, average daily high 17.4 °C / 63 °F, wet days 4 days, days with heavy rain 0.6 days, relative humidity 69%, average daily low 7.2 °C / 45 °F.
July · good
In its favour: precipitation 19 mm / 0.7 in, share of daylight that is sunny 83%, average daily high 17.1 °C / 63 °F, feels like (high) 13.2 °C / 56 °F, wet days 3.6 days, days with heavy rain 0.4 days, relative humidity 67%, average daily low 6 °C / 43 °F.
August · best
In its favour: feels like (high) 15.5 °C / 60 °F, average daily high 19.7 °C / 67 °F, precipitation 16 mm / 0.6 in, share of daylight that is sunny 85%, wet days 3.3 days, days with heavy rain 0.1 days, relative humidity 59%, average daily low 7.2 °C / 45 °F.
September · best
In its favour: feels like (high) 18.9 °C / 66 °F, average daily high 22.9 °C / 73 °F, precipitation 11 mm / 0.4 in, share of daylight that is sunny 91%, wet days 2.1 days, days with heavy rain 0.2 days, relative humidity 49%, average daily low 9.1 °C / 48 °F.
October · best
In its favour: feels like (high) 24.1 °C / 75 °F, precipitation 18 mm / 0.7 in, share of daylight that is sunny 92%, average daily high 27.1 °C / 81 °F, wet days 3.2 days, days with heavy rain 0.5 days, average daily low 12.7 °C / 55 °F, relative humidity 44%.
November · best
In its favour: feels like (high) 26.9 °C / 80 °F, precipitation 21 mm / 0.8 in, share of daylight that is sunny 89%, wet days 3.4 days, days with heavy rain 0.7 days, average daily high 29.4 °C / 85 °F, average daily low 14.9 °C / 59 °F, relative humidity 43%.
December · good
In its favour: precipitation 15 mm / 0.6 in, share of daylight that is sunny 92%, feels like (high) 30.5 °C / 87 °F, wet days 2.4 days, days with heavy rain 0.4 days, average daily low 17.4 °C / 63 °F, relative humidity 39%.
Against: average daily high 32.5 °C / 91 °F.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Mount Buller, 2401 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 32.4 °C | 31.4 °C | 27.7 °C | 23.1 °C | 17.9 °C | 14 °C | 13.2 °C | 15.5 °C | 18.9 °C | 24.1 °C | 26.9 °C | 30.5 °C |
| Days with heavy rain | 0.8 days | 0.9 days | 0.8 days | 0.6 days | 0.2 days | 0.6 days | 0.4 days | 0.1 days | 0.2 days | 0.5 days | 0.7 days | 0.4 days |
| Time rain usually falls | 4 pm | 3 pm | 3 am | 11 am | 6 am | 2 pm | 7 pm | 12 am | 4 pm | 6 pm | 3 pm | 10 am |
| Sunshine per day | 12.4 h | 11.3 h | 10.5 h | 9.8 h | 9.1 h | 8.3 h | 8.6 h | 9.3 h | 10.8 h | 11.8 h | 12.2 h | 13 h |
| Relative humidity | 43% | 45% | 51% | 54% | 59% | 69% | 67% | 59% | 49% | 44% | 43% | 39% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 3 µg/m³ | 2.9 µg/m³ | 2.7 µg/m³ | 2.5 µg/m³ | 1.9 µg/m³ | 2.3 µg/m³ | 1.8 µg/m³ | 2.4 µg/m³ | 2.8 µg/m³ | 2.5 µg/m³ | 2.6 µg/m³ | 2.6 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 5.3 µg/m³ | 5.1 µg/m³ | 4.9 µg/m³ | 4.5 µg/m³ | 3.5 µg/m³ | 3.9 µg/m³ | 3.3 µg/m³ | 4.6 µg/m³ | 5.1 µg/m³ | 4.7 µg/m³ | 4.8 µg/m³ | 4.9 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.