
Jonkershoek Nature Reserve
- Annual mean
- 16.5 °C
- Warmest month
- February
- Wettest month
- June
Twelve-month atmospheric profile featuring representative coordinate data for Western Cape landscapes.
Examine the long-term climate normals for Cape Winelands Biosphere Reserve, based on NASA POWER measurements collected from 1991 to 2020. Monthly data points define the annual pattern, tracking fluctuations in average temperatures, daily precipitation rates, relative humidity, wind speed, and daylight duration. These records provide a consistent representative look at atmospheric conditions, separate from daily weather variability or seasonal forecasts.
Warm, relatively dry February means contrasted with cool, wetter June conditions
Analyze average temperature bounds, daily precipitation rates, humidity, wind, and daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 23.4 °C12.4° to 38.9° | 0.6 mm/day | 54.7% | 4.9 m/s | 14 hours |
| February | 23.5 °C13.2° to 39.1° | 0.5 mm/day | 55% | 4.6 m/s | 13.2 hours |
| March | 21.8 °C11.5° to 37.2° | 0.7 mm/day | 57.5% | 4.2 m/s | 12.2 hours |
| April | 18.6 °C8.4° to 34.6° | 1.6 mm/day | 62% | 3.8 m/s | 11.1 hours |
| May | 15.4 °C6.6° to 29.7° | 2.4 mm/day | 70.1% | 3.5 m/s | 10.2 hours |
| June | 12.3 °C4.2° to 24.5° | 4.4 mm/day | 77% | 3.8 m/s | 9.8 hours |
| July | 11.4 °C3.1° to 22.7° | 3.8 mm/day | 79.6% | 3.6 m/s | 10 hours |
| August | 11.8 °C3.6° to 24.5° | 3.3 mm/day | 80.8% | 3.6 m/s | 10.8 hours |
| September | 13.6 °C4.5° to 28.5° | 1.9 mm/day | 78.1% | 3.7 m/s | 11.8 hours |
| October | 16.5 °C6.2° to 32.2° | 1.4 mm/day | 70.3% | 4.1 m/s | 12.9 hours |
| November | 18.9 °C8.6° to 35° | 1.3 mm/day | 63.3% | 4.5 m/s | 13.8 hours |
| December | 21.7 °C11.3° to 36.8° | 0.7 mm/day | 57.8% | 4.7 m/s | 14.2 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long-term monthly temperature, precipitation, wind, humidity, and daylight normals across the park coordinate
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly weather patterns and long term atmospheric normals across different protected landscapes







Deepen your understanding of the Cape Winelands Biosphere Reserve through our structured geographic atlas. Analyze the complex interplay of mountain topography, endemic biodiversity, and regional land use that defines this significant South African protected area, powered by the MoriAtlas platform.