Aarau Weather in January

Aarau in January sees low daytime temperatures of 5°C (41°F) and nighttime lows of -1°C (30°F). Rainfall is fairly high this month at around 96 mm (3.8 in), so pack a rain jacket to stay dry.

Rainfall in Aarau in January

You can typically expect 15 days of snow/rain this month, averaging around 96 mm (3.8 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Aarau in January

Expect highs of 5°C (41°F) in Aarau in January, with nights dropping to around -1°C (30°F). January marks the winter season. It stays very cold throughout much of the day, so warm winter clothing is essential. Nights are well below freezing at -1°C (30°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. During the coldest month of the year, be prepared to bundle up with heavy winter gear.

Sunshine in Aarau in January

The area experiences limited sunny days, amounting to roughly 63 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Aarau. Our weather planner can help you explore destinations with more pleasant weather conditions.