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.



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)


“Feels-Like” Temperatures

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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 82.4 70.7 63.9
Feb 82.7 70.6 63.8
Mar 82.2 68.8 61.6
Apr 78.3 63.8 56.2
May 75.4 60.4 53
Jun 71.7 56.6 48.8
Jul 70.3 55.7 47.9
Aug 71.3 56.4 48.6
Sep 71.8 58.6 51
Oct 73.7 62.3 55.4
Nov 76.2 64.5 57.1
Dec 79.6 68.4 61.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 28 21.5 17.7
Feb 28.2 21.4 17.7
Mar 27.9 20.4 16.4
Apr 25.7 17.7 13.4
May 24.1 15.8 11.7
Jun 22.1 13.7 9.3
Jul 21.3 13.2 8.8
Aug 21.8 13.6 9.2
Sep 22.1 14.8 10.6
Oct 23.2 16.8 13
Nov 24.6 18.1 13.9
Dec 26.4 20.2 16.3



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.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Knysna (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 10% 0 1.5
Feb 16% 0 1.8
Mar 13% 0 1.8
Apr 12% 0 1.8
May 11% 0 2.4
Jun 19% 0 2.7
Jul 16% 0 2.3
Aug 14% 0 2.5
Sep 9% 0 1.3
Oct 15% 0 2.6
Nov 17% 0 2.6
Dec 12% 0 1.5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 10 0 3.8
Feb 16 0 4.6
Mar 13 0 4.6
Apr 12 0 4.6
May 11 0 6.1
Jun 19 0 6.9
Jul 16 0 5.8
Aug 14 0 6.4
Sep 9 0 3.3
Oct 15 0 6.6
Nov 17 0 6.6
Dec 12 0 3.8


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.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

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
Jan 66%
Feb 67.3%
Mar 67.2%
Apr 65.8%
May 65.8%
Jun 63.5%
Jul 63.3%
Aug 63.2%
Sep 62.9%
Oct 66.4%
Nov 64.7%
Dec 65.4%


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

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 47.8 in December means 47.8% of the tourists vs. July.



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.


Best Times to TravelSouth Africa › Knysna, South Africa