Verdict: Good month
Lisbon Weather in December
December is mild-to-cool in Lisbon, topping out near 16°C (61°F) — comfortable with a layer on. Expect showers on roughly 9 days of the month — rarely trip-ruining, worth planning around. Overall, December is a solid month to visit Lisbon.
Average high
16°C / 61°F
Average low
10°C / 50°F
Rain days
~9
Precipitation
98 mm
What to pack for Lisbon in December
- Layers — t-shirts under a light jacket or sweater
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
December against the rest of the year
Warmest in Lisbon: Jul (29°C / 84°F) · Coolest: Jan (15°C / 59°F) · Wettest: Oct (~11 rain days)
15°
9°
Jan
17°
10°
Feb
18°
11°
Mar
20°
12°
Apr
23°
15°
May
25°
16°
Jun
29°
18°
Jul
28°
18°
Aug
26°
17°
Sep
23°
16°
Oct
19°
12°
Nov
16°
10°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)