Climate Chart of Knysna, South Africa
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Knysna, South Africa, the climate data cover 2013–2023. Monthly mean temperatures range from a high of 21.3 °C in January to a low of 14.1 °C in July. Mean daily rainfall and sunshine also vary through the year, with their monthly highs and lows falling at different times. These summaries offer a broad guide to the annual pattern, while monthly means do not describe conditions on every individual day.
Climate overview
Temperature
The highest monthly mean temperature is 21.3 °C in January, while the lowest is 14.1 °C in July. These values describe monthly averages rather than daytime highs, so they do not indicate the temperature a visitor should expect at a particular hour. Across the calendar-month means, the unweighted mean is 17.5 °C; it provides a broad summary, not a day-weighted annual average.
Rain
Mean daily rainfall reaches its highest monthly value of 2.33 mm/day in September and its lowest monthly value of 1.53 mm/day in February. The unweighted mean across monthly means is 1.86 mm/day. These are daily averages, not monthly rainfall totals, and the lower mean does not guarantee rain-free days or show how often rain occurs.
Sunshine
Mean daily sunshine is highest at 11.51 hours/day in December and lowest at 7.85 hours/day in June. The unweighted mean across the monthly figures is 9.74 hours/day. These averages can help with broad outdoor-planning expectations, but sunshine duration is not the same as day length and does not promise clear skies on any particular day.
Best Travel Time Guide for Knysna, South Africa: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly averages, July is the relevant point in the temperature record, with a monthly mean of 14.1 °C; this is not a daytime maximum or a forecast for each day. If lower average rainfall is the priority, February records the lowest mean daily amount, 1.53 mm/day, though that does not establish how many rainy days to expect. Rain preparation is especially relevant to the rainfall record's high point: September has a mean daily amount of 2.33 mm/day, not a monthly total or a measure of rain frequency. For outdoor plans focused on sunshine, the monthly mean is highest in December at 11.51 hours/day; the lowest sunshine mean occurs in June at 7.85 hours/day. These separate criteria can inform when to visit, but none alone identifies a universally best month or guarantees conditions on a particular day.
Climate Data Overview for Knysna, South Africa
Explore the comprehensive climate data for Knysna, South Africa. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 21.3 | 2.02 | 0.00 | 11.26 |
| Feb | 21.2 | 1.53 | 0.00 | 10.94 |
| Mar | 20.2 | 1.93 | 0.00 | 9.88 |
| Apr | 18.0 | 1.69 | 0.00 | 9.10 |
| May | 16.6 | 1.61 | 0.00 | 8.21 |
| Jun | 15.0 | 1.67 | 0.00 | 7.85 |
| Jul | 14.1 | 1.82 | 0.00 | 8.15 |
| Aug | 14.3 | 1.98 | 0.00 | 8.93 |
| Sep | 15.1 | 2.33 | 0.00 | 9.45 |
| Oct | 16.9 | 1.92 | 0.00 | 10.51 |
| Nov | 18.0 | 2.24 | 0.00 | 11.14 |
| Dec | 19.8 | 1.62 | 0.00 | 11.51 |
| Average | 17.5 | 1.86 | 0.00 | 9.74 |
