Verdict: Tough month
Basel Weather in December
December is properly cold in Basel, with highs of only 7°C (45°F). It's also the wet side of the calendar: rain falls on about 16 days, so build flexibility into plans. If your dates are flexible, most travelers will have a better time in Basel outside December.
Average high
7°C / 45°F
Average low
1°C / 34°F
Rain days
~16
Precipitation
105 mm
What to pack for Basel in December
- A proper warm jacket, and a hat for mornings
- Rain gear is non-negotiable — expect rain on roughly 16 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
December against the rest of the year
Warmest in Basel: Jul (26°C / 79°F) · Coolest: Jan (6°C / 43°F) · Wettest: Dec (~16 rain days)
6°
-1°
Jan
10°
1°
Feb
12°
2°
Mar
15°
5°
Apr
19°
9°
May
24°
14°
Jun
26°
15°
Jul
26°
16°
Aug
22°
12°
Sep
17°
8°
Oct
10°
3°
Nov
7°
1°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)