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Weather & Climate
Onslow, Western Australia, Australia
Overview
Climate data and monthly weather averages for Onslow.
Key Metrics
Annual Avg
25.5°C
Summer Avg
28.5°C
Winter Avg
21.6°C
Record High
39.5°C
Record Low
12.6°C
Annual Precipitation
268.8 mm
Avg Humidity
63%
Summer Humidity
67%
Winter Humidity
61%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 39.5° | 28.8° | 21.5° | 47.7 | 68% | 233 | 71.1 |
| Feb | 38.3° | 29.3° | 22.7° | 47 | 69% | 198 | 89.7 |
| Mar | 38.6° | 29.6° | 22.6° | 54.6 | 66% | 196 | 79.1 |
| Apr | 37° | 28.1° | 18.9° | 19.5 | 62% | 159 | 50.7 |
| May | 32.3° | 24.9° | 16.9° | 30.1 | 60% | 138 | 54.5 |
| Jun | 28.6° | 22.3° | 14.6° | 38.4 | 61% | 120 | 49.4 |
| Jul | 27.9° | 21.1° | 12.6° | 17.4 | 62% | 135 | 48.2 |
| Aug | 30° | 21.5° | 14.2° | 2.2 | 61% | 167 | 46.9 |
| Sep | 32.4° | 22.6° | 15.3° | 1.2 | 61% | 195 | 48.7 |
| Oct | 38.1° | 24.7° | 16.6° | 0.9 | 60% | 229 | 46.4 |
| Nov | 37° | 26° | 17.9° | 3.3 | 62% | 239 | 45.2 |
| Dec | 37.9° | 27.5° | 19.9° | 6.5 | 64% | 248 | 49.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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