Monthly climate guide
Lisbon weather in December
December in Lisbon is typically mild, with average daytime highs around 16°C (60°F) and night-time lows near 12°C (54°F). The month usually brings about 49 mm of rain (fairly dry) and is often cloudy. Daytime highs are 2°C cooler than November and about the same as January.
What stands out in December
- Lisbon is usually about 3°C warmer than Coimbra, 180 km away, in December.
- December is among Lisbon's three coolest months.
- Days and nights are close, only about 4°C apart.
- December brings early winter to Lisbon.
Avg high
16°C
60°F
Avg low
12°C
54°F
Rainfall
49 mm
fairly dry
Humidity
82%
relative
Sky
61%
cloud · often cloudy
Lisbon weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 15°C / 59°F | 11°C / 53°F | 55 mm | 81% | 64% |
| February | 15°C / 59°F | 11°C / 51°F | 37 mm | 79% | 58% |
| March | 16°C / 60°F | 12°C / 53°F | 63 mm | 79% | 59% |
| April | 17°C / 63°F | 13°C / 56°F | 61 mm | 80% | 60% |
| May | 20°C / 67°F | 15°C / 59°F | 36 mm | 79% | 53% |
| June | 21°C / 70°F | 17°C / 62°F | 7 mm | 79% | 50% |
| July | 22°C / 72°F | 18°C / 64°F | 3 mm | 81% | 49% |
| August | 23°C / 74°F | 18°C / 65°F | 4 mm | 81% | 42% |
| September | 23°C / 73°F | 18°C / 64°F | 21 mm | 80% | 48% |
| October | 21°C / 70°F | 17°C / 62°F | 63 mm | 80% | 59% |
| November | 18°C / 64°F | 14°C / 57°F | 98 mm | 81% | 63% |
| December | 16°C / 60°F | 12°C / 54°F | 49 mm | 82% | 61% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is December a good time to visit Lisbon?
Our Lisbon guide recommends: March to May or September to October, avoiding the hottest and most crowded summer months.
Ride Tram 28 through the old town for classic views — but expect it to be crowded; an early morning ride avoids the worst of it.
Best time to visit Lisbon →Other Portugal cities in December
Cite or embed this data
Writing about this destination? Copy a ready-made citation or embed a live widget — free, just keep the link.
Lisbon weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/portugal/lisbon/december
<a href="https://weathercompare.eu/weather/portugal/lisbon/december">Lisbon weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/portugal/lisbon" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Lisbon weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/portugal/lisbon/december">Lisbon weather in December</a> – WeatherCompare</p>
Lisbon in December: quick answers
Is December a good time to visit Lisbon?
December is a reasonable time for Lisbon: highs around 16°C and about 49 mm of rain, though not one of the three best months.
How warm is Lisbon in December?
Average highs are about 16°C (60°F) and average lows about 12°C (54°F), based on 10 years of daily data.
Does it rain a lot in Lisbon in December?
Lisbon typically gets around 49 mm of rain in December — fairly dry.
When is the best time to visit Lisbon?
March to May or September to October, avoiding the hottest and most crowded summer months.
Figures are long-term averages for the area around Lisbon (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.