South AfricaAverage weather for Swellendam in December
It's warm in December in Swellendam with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 30°C. At night, you can expect temperatures between 14°C and 17°C.
Start of December
The month of December starts in Swellendam with hot temps, averaging around 27°C during the day and nights around 16°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid December
By mid-December, daytime temps rise to around 28°C, with nights around 15°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of December
By the end of December, the average daytime temperature in Swellendam is around 29°C, while nighttime temps are about 16°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
Because temperatures drop in the evening, wearing layers is recommended.
In December, there is an average of 31 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the South.
Swellendam in December |
New York | ||
|---|---|---|---|
 Average temperature |
28°C | 9°C | |
 Max. temperature |
30°C | 12°C | |
| Min. temperature |
25°C | -5°C | |
 Total precipitation |
31 mm | 133 mm | |
| Rainy days |
6 days | 17 days | |
November
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit Swellendam?
Looking for great weather? December is a good time to be in Swellendam. The temperatures are nice, and there’s not too much rain.
Temperature records
With 39°C in 2017, Swellendam reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 16°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 22°C.
Check out the climate of Swellendam for all months and discover the best travel time
Curious about the weather in other parts of South Africa? Check out the climate and weather for spots like Cape Town, Krugerpark, Johannesburg, or explore other destinations in South Africa.
Daily Temperature in December in Swellendam
This chart shows the average daily high and low temperatures in December for Swellendam, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in Swellendam
The chart below shows the average daily precipitation in December for Swellendam, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 6 days of precipitation in Swellendam.
Daily UV index in December in Swellendam
This chart shows the average daily UV index in December in Swellendam, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Swellendam over the years
This chart shows the average temperature in December in Swellendam, measured in degrees Celsius, over the past few years.
Total precipitation in December in Swellendam over the years
This chart shows the average precipitation in December in Swellendam, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in December for Swellendam
Click on any day in December to get detailed info about the usual weather on that day in Swellendam. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Swellendam
Have you been to Swellendam in December?
Share your weather experience in December in Swellendam.
Average weather in Swellendam by month
Click on a month below to see detailed weather info for Swellendam. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Swellendam for all months at once
