Temperatures in December
It's warm in December in Hermanus with an average temperature of 25°C. Temperatures this month range from a low of 23°C to a high of 27°C. At night, you can expect temperatures between 15°C and 17°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Hermanus in December. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of December
The month of December starts in Hermanus with warm temperatures, averaging around 26°C during the day and nights close to 16°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-December
By mid-December, the average daytime temperature drops to around 25°C, with nights close to 17°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of December
By the end of December, the average daytime temperature in Hermanus will be around 26°C, with nights close to 17°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in December
In December, there is an average of 23 mm of precipitation, spread over 5 days. The wind speed is around 5 Bft, mostly coming from the South.
The precipitation chance averages 17% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in December for Hermanus. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Hermanus in December |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 9°C | |
 High Temp |
27°C | 11°C | |
| Low Temp |
23°C | 8°C | |
 Total Precipitation |
23 mm | 67 mm | |
| Rainy Days |
5 days | 10 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 Hermanus?
Want nice weather? Then December is a great time to be in Hermanus. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Hermanus in December
With 39°C, Hermanus hit the highest temperature in the last 10 years in December 2015. The lowest daytime temperature in this month was 18°C in 2019. The extreme night temperatures ranged from a low of 10°C to a high of 21°C.
Check out the climate of Hermanus for all months and discover the best travel time
Curious about the climate in other parts of South Africa? Check out the weather and climate in places like Cape Town, Krugerpark, Johannesburg, or have a look at other destinations in South Africa.
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Daily Temperature in December in Hermanus
This chart shows the average daily temperatures, both day and night, for each day in December in Hermanus, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Hermanus
The chart below shows the average daily precipitation in December for Hermanus, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 5 days of rain in Hermanus.
Daily UV Index in December in Hermanus
This chart shows the average daily UV index in December in Hermanus, 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 Hermanus Over the Years
This chart shows the average temperature in December in Hermanus, measured in degrees Celsius, over the past years.
Total Precipitation in December in Hermanus Over the Years
This chart shows the average precipitation in December in Hermanus, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Hermanus
Click on a specific day in December for detailed info on the typical weather on that day in Hermanus. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Hermanus
Have you been to Hermanus in December?
Share your weather experience in December in Hermanus.
Average Weather in Hermanus by Month
Click on a month below to see detailed weather info for Hermanus. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
