Knysna weather and climate
Knysna weather and climate
Day
25 °C
Night
16 °C
Sea
20 °C
Precipitation
56 mm
in month
Rainy days
8 days
in month
Daylight
14 hours
average
Sunshine
9 hours
average
Humidity
74 %
Day
25 °C
Night
16 °C
Sea
20 °C
Precipitation
56 mm
in month
Rainy days
8 days
in month
Daylight
14 hours
average
Sunshine
9 hours
average
Humidity
74 %
Overview: Knysna
Travel information
Weather charts for Knysna
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
Find more destinations like this
Activities in Knysna
Flights to Knysna
Destinations with similar weather to Knysna
Other destinations in Western Cape - South Africa
Closest cities for Knysna
Weather overview for Knysna
Weather overview
Knysna, a picturesque town on South Africa’s lush Garden Route, boasts a tropical climate diverse enough to intrigue weather enthusiasts. The town experiences a wide array of temperatures, with daytime highs ranging from 19 °C (67 °F) in the coolness of July to a balmy 26 °C (79 °F) in the heat of February. Although May is the driest month with as few as 6 days days experiencing rain, October contrasts sharply with up to 9 days days of rainfall. Sea temperatures in Knysna peak in February at 21 °C (70 °F), dipping to a cooler 16 °C (62 °F) in August. At night, the mercury falls to 8 °C (46 °F) in July and rises to 17 °C (63 °F) in February. It is worth noting that the wind speed, rainfall, humidity, and sunshine duration also significantly contribute to shaping the climate profile of this coastal haven.
January weather
In Knysna, the day temperature continues its gradual increase reaching 26 °C (78 °F) with the ocean temperature also exhibiting an upward trend. The amount of rainfall observes a decline to 46 mm (1.83 in), and the night temperature experiences a rise to 17 °C (62 °F).
February weather
February in Knysna marks the peak of day temperatures, hitting a maximum of 26 °C (79 °F), and sea temperatures also crest this month. The onset of more rainy days is evident, registering 8 days, while the monthly rainfall stays relatively low at 43 mm (1.70 in). The nocturnal temperatures reach their zenith at 17 °C (63 °F).
March weather
As March unfolds, a downward trend in both day temperatures, standing at 25 °C (76 °F), and sea temperatures, currently 20 °C (68 °F), is apparent. The early signs of the tourist season remain peaked. A slight increase in rain volume can be detected, and the night temperature also begins its descent, now at 16 °C (60 °F). March is distinguished by the highest humidity levels.
April weather
April in Knysna sees a continuation of the ebbing tourist season. The sea temperature dips further to 18 °C (65 °F), mirroring a decline in the day temperature. The rainfall volume becomes more pronounced at 60 mm (2.37 in). Sun hours decrease to 7 hours, following a similar pattern as previous months.
May weather
As May arrives, the day temperature in Knysna continues its descent, and a similar trend in the sea temperature is observed at 18 °C (64 °F). Rain arrives less frequently now, with a mere 6 days of wet weather, and the decline in rainfall volume is noticeable at 46 mm (1.79 in). The chilly nighttime temperature registers at 11 °C (52 °F), with sun hours also on a downward trajectory to 6 hours.
June weather
Knysna experiences further cooling in June, with the day temperature slipping to 20 °C (67 °F) and a concurrent decline in sea temperature to 17 °C (63 °F). An increase in the number of rainy days indicates the coming change in weather, and the night temperature sees a decreased level to 9 °C (47 °F). Humidity reaches its lowest point of the year, achieving 69 %, and the least amount of sun hours at 6 hours is also noticeable.
July weather
July brings the coldest day temperatures to Knysna at 19 °C (67 °F), paralleled by similarly low night temperatures at 8 °C (46 °F). Sunshine hours begin an upward trend, reflecting a subtle increase in daytime.
August weather
The sea temperature reaches its nadir in Knysna during August, while the day temperature rebounds slightly. There's a burgeoning number of rainy days logged at 8 days and rainfall volume shows early signs of growth with 64 mm (2.52 in) noted. The sun hours continue their ascent, now at 7 hours, and a rise in nighttime temperatures begins to be felt, noted at 9 °C (47 °F).
September weather
September observes a decrease in Knysna's rainfall, at 52 mm (2.07 in), and rainy days also diminish slightly to 7 days. The night temperature continues its ascension, now at 10 °C (49 °F).
October weather
Knysna's weather in October is characterized by a rise in day temperature, while sea temperatures begin to recover. The highest rainfall for the year is marked this month at 81 mm (3.18 in), accompanied by a peak in rainy days at 9 days. The night temperature also undergoes a rise to 12 °C (54 °F), and sun hours start their seasonal increase, reaching 8 hours.
November weather
The tourist season begins to gain momentum in November. Rising day temperatures in Knysna are felt at 23 °C (74 °F), and the sea also warms up to 18 °C (65 °F). A declining trend in rainfall marks this month at 62 mm (2.44 in), while sun hours steadily climb to 8 hours. The month is known for the highest wind speeds.
December weather
December's weather continues to warm with a day temperature of 25 °C (77 °F) and a corresponding rise in sea temperature. The rainfall amount keeps ebbing to 56 mm (2.21 in), and the tourist season is in full swing. The longest day lengths and the highest number of sunny hours are notable this month.
FAQs
How does the night temperature change in January compared to earlier months?
In Knysna for January, you'll notice a slight increase in the night temperature to a comfortable 17 °C (62 °F) compared to the cooler previous months.
Could you describe the general weather conditions in Knysna during February?
Throughout February, Knysna enjoys its warmest days with peak day and sea temperatures. Despite a low rainfall volume, the number of rainy days starts to pick up, and nights remain notably warm.
In Knysna, does March mark the beginning of the rainy season?
March in Knysna doesn't herald the rainy season, yet it prepares for it with an uptick in rain volume across its 8 days of precipitation.
With April's weather in Knysna, what outdoor activities might be most enjoyable?
April's temperate climate, averaging 23 °C (73 °F) during the day, makes it ideal for a wide range of activities, from leisurely strolls to sunbathing by the sea, even as daylight wanes to around 7 hours.
How does the sunshine duration change in Knysna as May approaches?
In May, Knysna witnesses a slight reduction in sun hours with an average of 6 hours per day, denoting marginally fewer opportunities for sunbathing compared to April.
Is Knysna's climate in June conducive to spending time by the sea?
June in Knysna might not be the best for ocean activities with the sea temperature at a cooler 17 °C (63 °F) and reduced sunshine mean fewer ideal beach days.
Does the sunshine in Knysna in July compensate for the lower temperatures?
Despite July's cooler temperatures, the gradual increase in sun hours to 6 hours helps offset the chill, providing pleasantly mild conditions for outdoor pursuits.
How do the changes in weather patterns during August affect the overall climate in Knysna?
Augusts' incremental rises in both day and nighttime temperatures, along with growing sun hours, hint at Knysna's transition towards warmer weather, despite the increased rainfall.
What kind of weather should visitors to Knysna expect in the month of September?
Those visiting Knysna in September will encounter a tapering off of rainfall and moderately warm evenings with night temperatures around 10 °C (49 °F).
In terms of precipitation, what is significant about October in Knysna?
October stands out in Knysna for recording the highest monthly rainfall, with the gauge collecting 81 mm (3.18 in), and also seeing the most rainy days at 9 days.
How might the weather in Knysna in November affect outdoor tourism activities?
With an upsurge in both day temperatures to 23 °C (74 °F) and sunshine, November presents ideal conditions for tourism, although higher wind speeds might require some planning around certain outdoor events.
Is the climate suitable for year-end holiday festivities in Knysna during December?
December's agreeable warmth, averaging 25 °C (77 °F) for day temperatures, and abundant sunshine, peaking at 9 hours, make it perfect for holiday celebrations in Knysna.