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Weather & Climate
Grahamstown, Eastern Cape, South Africa
Overview
Available climate summaries for Grahamstown. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
18.1°C
Summer Avg
21.9°C
Winter Avg
14.2°C
Record High
42°C
Record Low
3.2°C
Annual Precipitation
572.8 mm
Avg Humidity
70%
Summer Humidity
72%
Winter Humidity
66%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 41.6° | 22.2° | 12.1° | 67.3 | 72% | 207 | 62 |
| Feb | 40.7° | 22.5° | 9.9° | 61.6 | 73% | 171 | 51.2 |
| Mar | 42° | 21.1° | 10.4° | 65.7 | 73% | 162 | 51.9 |
| Apr | 37.8° | 18.7° | 7.4° | 47.4 | 72% | 120 | 57.4 |
| May | 33.4° | 16.7° | 4.6° | 26 | 68% | 97 | 56.3 |
| Jun | 29.4° | 14.2° | 4.1° | 22.8 | 65% | 84 | 59.6 |
| Jul | 32.3° | 13.8° | 3.2° | 29.1 | 64% | 93 | 64.2 |
| Aug | 34.3° | 14.5° | 4° | 44 | 68% | 116 | 58.9 |
| Sep | 37° | 16° | 5.5° | 35.1 | 70% | 146 | 54.2 |
| Oct | 41.7° | 17.7° | 6.6° | 57.7 | 71% | 176 | 60 |
| Nov | 39.8° | 19° | 7.9° | 60.6 | 71% | 196 | 52.1 |
| Dec | 40.7° | 20.9° | 10.1° | 55.5 | 71% | 215 | 53.8 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-21.
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