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Weather & Climate
Boulder, Western Australia, Australia
Overview
Climate data and monthly weather averages for Boulder.
Key Metrics
Annual Avg
18.5°C
Summer Avg
25.5°C
Winter Avg
11.3°C
Record High
46.8°C
Record Low
-0.8°C
Annual Precipitation
287.7 mm
Avg Humidity
51%
Summer Humidity
41%
Winter Humidity
64%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 46.8° | 26.5° | 9.7° | 46.2 | 40% | 244 | 50.4 |
| Feb | 45.9° | 25.3° | 8.7° | 40 | 45% | 192 | 53.2 |
| Mar | 42° | 22.5° | 5.5° | 26.7 | 48% | 185 | 61.5 |
| Apr | 38.5° | 19.1° | 4.3° | 15.3 | 52% | 140 | 46.2 |
| May | 32.9° | 14.4° | 1.5° | 15.5 | 59% | 113 | 55 |
| Jun | 27.1° | 11.3° | -0.6° | 17.7 | 65% | 91 | 54.5 |
| Jul | 26.9° | 10.5° | -0.8° | 22 | 66% | 104 | 51.7 |
| Aug | 31.4° | 12° | 0.3° | 22 | 60% | 134 | 53.3 |
| Sep | 35.1° | 14.9° | -0.5° | 15 | 53% | 172 | 58.1 |
| Oct | 39.5° | 19.1° | 3.1° | 18.9 | 45% | 215 | 63.1 |
| Nov | 44.9° | 22.1° | 5.1° | 26.4 | 41% | 232 | 54.4 |
| Dec | 45.4° | 24.7° | 8.2° | 22 | 38% | 255 | 51.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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