Bunbury Weather and Climate
Climate Snapshot
Bunbury's warmest month in 2024 was February, averaging 31.1 degrees. That gives Bunbury an annual average daytime high of 23.1 degrees, 4.4 degrees cooler than the Western Australia mean.
Daytime highs peak at 31.1 degrees in February and bottom out with overnight lows of 10.6 degrees in September. That is a 20.5 degree spread from hottest afternoon to coldest night. Overnight minimums average 14.2 degrees across the year, 3.5 degrees colder than the Western Australia average of 17.7.
Annual rainfall totals 828mm across 92 rain days, 48 percent wetter than the Western Australia average. The wettest month is July at 239mm, and April is the driest at 0mm.
Rain is a winter affair here. The cooler months bring the bulk of the moisture, while summers stay relatively dry.
When we crunch the numbers on temperature, humidity, UV, and rainfall, November comes out as the sweet spot with a Comfort Score of 10.0 out of 10. July sits at the other end at 2.3.
The full data table below breaks it all down month by month. If you're in a hurry, November is your best bet.
Monthly Comfort Score
Our Comfort Score rates each month from 1 (tough) to 10 (ideal) based on temperature, humidity, rainfall, UV, and sunshine. How we calculate it
Annual Comfort Score: 6.8/10 - Ranked #67 of 213 Australian cities (national avg 6.2, WA avg 6.0)
Seasonal Overview
| Season | Avg Max °C | Avg Min °C | Total Rain mm | Comfort |
|---|---|---|---|---|
| Summer | 29.5 | 17.7 | 12 | 7.5 |
| Autumn | 25.2 | 15.2 | 120 | 8.5 |
| Winter | 17.1 | 11.7 | 577 | 2.7 |
| Spring | 20.7 | 12.1 | 119 | 8.2 |
Monthly Climate Averages
| Month | Max °C | Min °C | Rain mm | Rain Days | Solar MJ | Humidity % | Comfort |
|---|
Weather by Month
Detailed climate data, packing advice, and what to expect for each month in Bunbury.
29.4°C, 2mm rain February
31.1°C, 2mm rain March
27.8°C, 6mm rain April
25.9°C, 0mm rain May
21.9°C, 114mm rain June
17.5°C, 142mm rain July
16.9°C, 239mm rain August
16.8°C, 196mm rain September
18.4°C, 35mm rain October
20.4°C, 61mm rain November
23.3°C, 23mm rain December
28.1°C, 8mm rain
Compare and Explore
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