Portugal
Lisbon in December
In December, Lisbon averages a daytime high of 16 °C and a night-time low of 10 °C, with about 106 mm of rain over the month. It falls outside Lisbon's most comfortable months, March to September.
- Average high
- 16 °C
- Average low
- 10 °C
- Rain in the month
- 106 mm
- Daylight on 15 Dec
- 9 h 30 min
- Comfortable month
- No
- Places to stay
- 366
When to go
How December compares with the rest of the year in Lisbon
December is tied for the 10th warmest month in Lisbon by average daytime high; across the year the highs run from 15 °C to 29 °C and the lows from 8 °C to 18 °C. By day, December is 2 °C cooler than November, and January is 1 °C cooler than December.
December brings 106 mm of rain, more than the monthly average of 65 mm (775 mm a year); it is the 3rd wettest month.
On 15 December the sun is up for about 9 h 30 min, against 9 h 30 min at the shortest and 14 h 50 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 15 °C | 8 °C | 97 mm | |
| February | 16 °C | 9 °C | 85 mm | |
| March | 19 °C | 11 °C | 79 mm | Yes |
| April | 20 °C | 12 °C | 69 mm | Yes |
| May | 23 °C | 14 °C | 53 mm | Yes |
| June | 26 °C | 16 °C | 14 mm | Yes |
| July | 28 °C | 18 °C | 4 mm | Yes |
| August | 29 °C | 18 °C | 7 mm | Yes |
| September | 26 °C | 17 °C | 36 mm | Yes |
| October | 23 °C | 15 °C | 109 mm | |
| November | 18 °C | 12 °C | 116 mm | |
| December | 16 °C | 10 °C | 106 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is December a good time to visit Lisbon?
Not by the measure used here: the average high of 16 °C is below 18 °C and about 106 mm of rain is 80 mm or more. The comfortable months in Lisbon are March to September; the nearest are September, before, and March, after.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in Portugal in December
Nationwide public holidays; shops and offices may close on these dates.
Where to stay
Where to stay in Lisbon
This guide lists 366 places to stay in Lisbon: 5 chain properties with their details and own websites, and 361 hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 136; 1–3 km, 179; 3–10 km, 51.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from the OpenHolidays API (ODbL); places to stay from each operator's own public pages and Wikidata. How this guide is made.