The best times to visit Kalgoorlie – Boulder for ideal weather are
February 19th to May 20th
September 24th to December 16th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Kalgoorlie – Boulder Travel Guide
Other Kalgoorlie – Boulder Travel Info
Weather in Kalgoorlie – Boulder
Average temperatures in Kalgoorlie – Boulder vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 65th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Kalgoorlie – Boulder, the hottest months are January, February, and then December. See average monthly temperatures below. The warmest time of year is generally late December where highs are regularly around 96.3°F (35.7°C) with temperatures rarely dropping below 64.1°F (17.8°C) at night.
Kalgoorlie – Boulder Temperatures (Fahrenheit)
Kalgoorlie – Boulder Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Kalgoorlie – Boulder Perceived Temperature (F)
Kalgoorlie – Boulder Perceived Temperature (C)
Average Kalgoorlie – Boulder Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Kalgoorlie – Boulder are May, December, and then April. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late December. For example, on the week of December 24th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid July with an average of 1 days of significant precipitation the week of July 9th.
When can you find snow in Kalgoorlie – Boulder? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Kalgoorlie – Boulder.
Snow on the Ground
The graph below shows the average snow on the ground in Kalgoorlie – Boulder (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Kalgoorlie – Boulder has some comfortably humid months, and dry months in the opposite season. The least humid month is December (24.7% relative humidity), and the most humid month is June (53.2%).
Wind in Kalgoorlie – Boulder is usually moderate. The windiest month is January, followed by December and February. January’s average wind speed of around 9.5 knots (11 MPH or 17.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late November to early December where average top sustained speeds reach 16.7 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Kalgoorlie – Boulder.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||9.5||Gentle breeze||15.6||Significant breeze|
|Feb||9.2||Gentle breeze||15.2||Significant breeze|
|Mar||8||Gentle breeze||13.5||Significant breeze|
|Apr||6.5||Light breeze||11.6||Significant breeze|
|May||5.7||Light breeze||11||Significant breeze|
|Jun||6||Light breeze||11.3||Significant breeze|
|Jul||6.1||Light breeze||11.7||Significant breeze|
|Aug||6.4||Light breeze||12.4||Significant breeze|
|Sep||7.7||Gentle breeze||14.3||Significant breeze|
|Oct||8.5||Gentle breeze||14.8||Significant breeze|
|Nov||8.9||Gentle breeze||15.6||Significant breeze|
|Dec||9.3||Gentle breeze||15.6||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Kalgoorlie – Boulder?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Australia; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Kalgoorlie – Boulder, WT, Australia is January, followed by December and September. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Kalgoorlie – Boulder in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Kalgoorlie – Boulder Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 87.5°F (30.8°C) and 67.7°F (19.8°C) with colder temperatures in the later months. Rain is rare with 1 to 2 days of significant precipitation per month. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.
Winter (June through August)
The middle-year months have cold weather with high temperatures that are brisk. These months see moderate precipitation with about 2 days of precipitation per month. June – August is the slowest season for tourism in Kalgoorlie – Boulder, so lodging and other accommodations may cost less than usual.
Spring (September through November)
Spring daily highs range from 87.1°F (30.6°C) and 69.4°F (20.8°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 2 to 3 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Summer (December through February)
Weather is perfect this time of year in Kalgoorlie – Boulder to be enjoyable for warm weather travelers. The average high during this season is between 96.3°F (35.7°C) and 86°F (30°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are the busiest with tourists.