The best times to visit Knysna for ideal weather are
March 5th to June 3rd
August 27th to December 30th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Knysna Travel Guide
Other Knysna Travel Info
Weather in Knysna
Average temperatures in Knysna vary somewhat. Considering humidity, temperatures feel very enjoyable all year with a low chance of precipitation most of the year. The area is more temperate than most — in the 72nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Knysna, the hottest months are January, February, and then March. See average monthly temperatures below. The warmest time of year is generally late January where highs are regularly around 85.4°F (29.7°C) with temperatures rarely dropping below 64.7°F (18.2°C) at night.
Knysna Temperatures (Fahrenheit)
Knysna Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Knysna Perceived Temperature (F)
Knysna Perceived Temperature (C)
Average Knysna Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Knysna are September, January, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early September. For example, on the week of September 3rd there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid November with an average of 2 days of significant precipitation the week of November 12th.
When can you find snow in Knysna? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Knysna.
Snow on the Ground
The graph below shows the average snow on the ground in Knysna (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Knysna has some humid months, and above average humidity throughout the year. The least humid month is September (62.9% relative humidity), and the most humid month is February (67.3%).
Wind in Knysna is usually extremely calm. The windiest month is November, followed by September and October. November’s average wind speed of around 3.7 knots (4.3 MPH or 6.9 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late August to early September where average top sustained speeds reach 7.6 knots, which is considered a gentle breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Knysna.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||3.4||Barely noticeable||5.9||Light breeze|
|Feb||3.2||Barely noticeable||5.7||Light breeze|
|Mar||2.9||Barely noticeable||5.7||Light breeze|
|Apr||2.8||Barely noticeable||5.8||Light breeze|
|May||2.7||Barely noticeable||5.6||Light breeze|
|Jun||3.3||Barely noticeable||6.7||Light breeze|
|Jul||3.1||Barely noticeable||6.3||Light breeze|
|Aug||3.2||Barely noticeable||6.7||Light breeze|
|Sep||3.7||Barely noticeable||6.9||Light breeze|
|Oct||3.6||Barely noticeable||6.7||Light breeze|
|Nov||3.7||Barely noticeable||6.5||Light breeze|
|Dec||3.5||Barely noticeable||6||Light breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Knysna?
Our best data indicates this area is somewhat safe. As of Oct 07, 2019 there are travel warnings for South Africa; exercise a high degree of caution. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Knysna, South Africa is July, followed by August and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Knysna in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Knysna Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 85.4°F (29.7°C) and 72.7°F (22.6°C) with colder temperatures in the later months. Rain is rare with 3 to 4 days of significant precipitation per month. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.
Winter (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 4 to 6 days of precipitation per month. June – August is the busiest season for tourism in Knysna, so lodging and other accommodations may cost more than usual.
Spring (September through November)
Spring daily highs range from 77.8°F (25.4°C) and 71.2°F (21.8°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 3 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Summer (December through February)
Weather is perfect this time of year in Knysna to be enjoyable for warm weather travelers. The average high during this season is between 84°F (28.9°C) and 78°F (25.6°C). On average, it rains or snows a smalll amount: 3 to 4 times per month. These times of year are fairly slow with tourists.