Unlock deeper multi-jurisdiction research
Full sub-pages, saves, and alerts are available on paid plans.
Weather & Climate
Arniston, Western Cape, South Africa
Overview
Climate data and monthly weather averages for Arniston.
Key Metrics
Annual Avg
17°C
Summer Avg
21.3°C
Winter Avg
12.5°C
Record High
40.5°C
Record Low
2.7°C
Annual Precipitation
534.9 mm
Avg Humidity
73%
Summer Humidity
68%
Winter Humidity
79%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 39.4° | 21.7° | 12.4° | 28.5 | 67% | 229 | 63.5 |
| Feb | 38.7° | 21.9° | 11.5° | 23 | 69% | 185 | 52.7 |
| Mar | 40.5° | 20.4° | 10.1° | 36.9 | 70% | 166 | 56.4 |
| Apr | 36.4° | 17.8° | 8.8° | 42.9 | 74% | 119 | 66.4 |
| May | 31.4° | 15.5° | 6° | 42.2 | 76% | 91 | 62.2 |
| Jun | 29.1° | 12.9° | 3.8° | 66.9 | 77% | 75 | 74 |
| Jul | 27.5° | 12.3° | 2.8° | 67 | 79% | 86 | 61 |
| Aug | 27.9° | 12.4° | 2.7° | 67 | 80% | 111 | 62.4 |
| Sep | 34.6° | 14.1° | 5.2° | 40.2 | 77% | 144 | 65 |
| Oct | 36.2° | 16.4° | 5.6° | 45.3 | 73% | 184 | 63.4 |
| Nov | 34.4° | 18.1° | 9.3° | 48 | 69% | 212 | 60.8 |
| Dec | 39.6° | 20.4° | 10.7° | 27 | 67% | 235 | 59.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
Subscribe to unlock the full sub-page depth for additional jurisdictions.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.