The best times to visit Clanwilliam for ideal weather are
September 10th to May 13th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Clanwilliam Travel Guide
Other Clanwilliam Travel Info
Weather in Clanwilliam
Temperature
Average temperatures in Clanwilliam vary little. Considering humidity, temperatures feel very enjoyable all year with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 84th 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 Clanwilliam, the hottest months are February, January, and then December. See average monthly temperatures below. The warmest time of year is generally early February where highs are regularly around 82.7°F (28.2°C) with temperatures rarely dropping below 59.6°F (15.3°C) at night.
Clanwilliam Temperatures (Fahrenheit)
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Clanwilliam Temperatures (Celsius)
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“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.
Clanwilliam Perceived Temperature (F)
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Clanwilliam Perceived Temperature (C)
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Average Clanwilliam 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) |
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Jan | 79 | 66.9 | 57.7 |
Feb | 80.2 | 67.4 | 58.3 |
Mar | 78.7 | 65.3 | 56.4 |
Apr | 77.4 | 63.1 | 54.2 |
May | 71.7 | 58.8 | 51.5 |
Jun | 68 | 55.5 | 48.6 |
Jul | 68.6 | 55 | 47.1 |
Aug | 69.4 | 55 | 46.9 |
Sep | 69.7 | 56.9 | 48 |
Oct | 72.6 | 60.4 | 51 |
Nov | 74.9 | 62.9 | 53 |
Dec | 76.9 | 65.5 | 56.4 |
Show Celsius
Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
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Jan | 26.1 | 19.4 | 14.3 |
Feb | 26.8 | 19.7 | 14.6 |
Mar | 25.9 | 18.5 | 13.6 |
Apr | 25.2 | 17.3 | 12.3 |
May | 22.1 | 14.9 | 10.8 |
Jun | 20 | 13.1 | 9.2 |
Jul | 20.3 | 12.8 | 8.4 |
Aug | 20.8 | 12.8 | 8.3 |
Sep | 20.9 | 13.8 | 8.9 |
Oct | 22.6 | 15.8 | 10.6 |
Nov | 23.8 | 17.2 | 11.7 |
Dec | 24.9 | 18.6 | 13.6 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Clanwilliam are February, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid January. For example, on the week of January 15th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late July with an average of 1 days of significant precipitation the week of July 23rd.
When can you find snow in Clanwilliam? 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 Clanwilliam.
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Snow on the Ground
The graph below shows the average snow on the ground in Clanwilliam (in).
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Average Rain and Snow by Month
Show Inches
Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
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Jan | 1% | 0 | 0.1 |
Feb | 0% | 0 | 0.1 |
Mar | 2% | 0 | 0.2 |
Apr | 4% | 0 | 0.4 |
May | 9% | 0 | 0.8 |
Jun | 14% | 0 | 1.4 |
Jul | 14% | 0 | 1.3 |
Aug | 9% | 0 | 0.8 |
Sep | 3% | 0 | 0.4 |
Oct | 4% | 0 | 0.3 |
Nov | 4% | 0 | 0.7 |
Dec | 2% | 0 | 0.2 |
Show Centimeters
Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
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Jan | 1 | 0 | 0.3 |
Feb | 0 | 0 | 0.3 |
Mar | 2 | 0 | 0.5 |
Apr | 4 | 0 | 1 |
May | 9 | 0 | 2 |
Jun | 14 | 0 | 3.6 |
Jul | 14 | 0 | 3.3 |
Aug | 9 | 0 | 2 |
Sep | 3 | 0 | 1 |
Oct | 4 | 0 | 0.8 |
Nov | 4 | 0 | 1.8 |
Dec | 2 | 0 | 0.5 |
Humidity and Wind
Clanwilliam has some high humidity months, with other comfortably humid months. The least humid month is April (59.5% relative humidity), and the most humid month is May (69.4%).
Wind in Clanwilliam is usually calm. The windiest month is November, followed by June and January. November’s average wind speed of around 6.6 knots (7.6 MPH or 12.3 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late November to early December where average top sustained speeds reach 10.8 knots, which is considered a gentle breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Clanwilliam.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 6.4 | Light breeze | 9.9 | Gentle breeze |
Feb | 6 | Light breeze | 9.6 | Gentle breeze |
Mar | 5.7 | Light breeze | 9.1 | Gentle breeze |
Apr | 5.9 | Light breeze | 8.9 | Gentle breeze |
May | 5.6 | Light breeze | 8 | Gentle breeze |
Jun | 6.4 | Light breeze | 8.9 | Gentle breeze |
Jul | 6.2 | Light breeze | 8.6 | Gentle breeze |
Aug | 6.2 | Light breeze | 8.7 | Gentle breeze |
Sep | 6.1 | Light breeze | 8.8 | Gentle breeze |
Oct | 6.3 | Light breeze | 9.6 | Gentle breeze |
Nov | 6.6 | Light breeze | 9.9 | Gentle breeze |
Dec | 6.2 | Light breeze | 9.6 | Gentle breeze |
Show Relative Humidity by Month
Month | Avg. Relative Humidity |
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Jan | 66.7% |
Feb | 66% |
Mar | 66.2% |
Apr | 59.5% |
May | 69.4% |
Jun | 68.6% |
Jul | 64.3% |
Aug | 67.2% |
Sep | 67% |
Oct | 65.6% |
Nov | 63.2% |
Dec | 67% |
Is it Safe to Travel to Clanwilliam?
Our best data indicates this area is somewhat safe. As of Dec 04, 2023 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 Nov 30, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Clanwilliam, South Africa is January, followed by February and November. 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 Clanwilliam in June. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Clanwilliam Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 82.7°F (28.2°C) and 67.4°F (19.7°C) with colder temperatures in the later months. Rain is rare with 1 to 3 days of significant precipitation per month. Fall is the slowest for tourism, which makes it a good time for those looking for deals.
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 3 to 4 days of precipitation per month. June – August is fairly slow season for tourism in Clanwilliam, so lodging and other accommodations may cost slightly less.
Spring (September through November)
Spring daily highs range from 78.3°F (25.7°C) and 69.6°F (20.9°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: approximately 1 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Summer (December through February)
Weather is perfect this time of year in Clanwilliam to be enjoyable for warm weather travelers. The average high during this season is between 81.9°F (27.7°C) and 76.1°F (24.5°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the busiest with tourists.
Best Times to Travel› South Africa › Clanwilliam, South Africa