Heidelberg Weather in December

December in Heidelberg sees daytime temperatures around 27°C (81°F) and lows of 16°C (61°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Heidelberg in December

With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Looking at the last 30 years, the data shows about 13 days with rain, averaging 150 mm (5.9 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Heidelberg in December

December in Heidelberg brings high temperatures, with highs of 27°C (81°F) and nights around 16°C (61°F). This kind of day-to-night contrast is typical for this time of year. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Heidelberg in December

Expect sunny days throughout the month, with an estimated 264 hours of sunshine. This makes it a pleasant time to visit Heidelberg.

December in Heidelberg has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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For a detailed overview over the year and the best time to visit South Africa, check out our Heidelberg's climate page.

Heidelberg Temperature in December

Min Temperature 16°C (61°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 45%  

Precipitation 150 mm (5.9 in)  

Rainy days 13 days  

Humidity 66% *  

Sunshine 264 hours *  

Percentage Sunshine 61% *  

* Data from: Johannesburg, South Africa (45 KM, 28 Miles).

What to Wear in Heidelberg in December

Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Heidelberg in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit South Africa, check out our Heidelberg's climate page.

More climate data for Heidelberg

Temperature Rainfall Sunshine Humidity

See the full Heidelberg climate overview or explore weather in South Africa.