Heidelberg Weather in January
January in Heidelberg sees daytime temperatures around 5°C (41°F) and lows of -1°C (30°F) at night. With around 81 mm (3.2 in) of snow/rainfall expected, it's worth packing a rain jacket.
Rainfall in Heidelberg in January
The climate data from previous years indicates about 16 days of snow/rain, averaging 81 mm (3.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Heidelberg in January
Daytime highs in Heidelberg in January reach 5°C (41°F), with nights around -1°C (30°F). The month of January belongs to the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. At -1°C (30°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. Since it's the coldest month of the year, you'll want to bundle up with extra layers and winter clothing.
Sunshine in Heidelberg in January
The month has fewer sunny days, with around 57 hours of sunshine.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Heidelberg.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Heidelberg's climate page.
Heidelberg Temperature in January
Min Temperature
-1°C (30°F)
Max Temperature
5°C (41°F)
Chance of Rain
53%
Precipitation
81 mm (3.2 in)
Rainy days
16 days
Sunshine
57 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in Heidelberg typically stay consistent throughout January, with daily highs averaging around 5°C (41°F). Nights are very cold, with lows typically ranging from -1°C (30°F) to 1°C (34°F).
Average temperatures in January
Historical weather for Heidelberg in January
Browse day-by-day weather records for Heidelberg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Heidelberg historical weather extremes in January
Based on weather observations in Heidelberg between 2005 and 2025, these are the recorded extremes during January.
- On January 25, 2025, temperatures climbed to 17°C (63°F), marking the warmest January day on record.
- On January 23, 2017, Heidelberg saw its coldest January day with temperatures maxing out at -5°C (23°F).
- Nighttime temperatures dropped to -14°C (7°F) on January 5, 2010, marking the coldest January night on record.
Best Places in Germany in January
Find out more about the weather in Germany and which places have the best travel conditions in this month. See all of Germany in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Heidelberg in January
We recommend to layer up for chilly conditions in Heidelberg in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Heidelberg in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Heidelberg's climate page.
See the full Heidelberg climate overview or explore weather in Germany.
