What to expect in Porto in December
December is a mixed month in Porto. You get 13° / 6°, but manageable crowds at the big attractions. Worth it for the right traveller.
Porto weather in December
Typical conditions in Porto during December, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 13°C 55°F |
|---|---|
| Average low | 6°C 43°F |
| Rainfall | Wet 150/100 |
| Total rainfall | 176 mm6.9 in |
| Rainy days | 15 |
| Sea temperature | 14°C 58°F |
| Daylight | 9 h 14 min |
| How it feels | Cool |
Average highs sit around 13°C with lows near 6°C. Expect a fair amount of rain, so plan indoor backups.
Crowds & demand
Crowd levels are Low for Porto — plenty of space at the main sights.
Prices & value
This month counts as low season: some of the best deals of the year.
What to pack
Layers you can shed: 13°C by day and about 6°C after dark is a two-jacket kind of month. Add a compact rain shell and shoes you do not mind soaking; this is one of the wetter months.
What it costs
This is one of the cheaper months to visit Porto. Flights and accommodation sit near their yearly floor, and you can usually book late without being punished for it. Compared with the most expensive month of the year, you are looking at roughly 55% less.
Who this month suits
- Anyone travelling on a budget
- People who would rather have space than perfect conditions
Events & what’s on
No major festivals fall in December, so the destination feels like its everyday self.
Porto in December compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| October | 21° / 12° | Moderate | $ | 59 |
| November | 16° / 8° | Low | $ | 54 |
| December · This month | 13° / 6° | Low | $ | 47 |
| January | 13° / 5° | Low | $ | 50 |
| February | 14° / 6° | Low | $ | 54 |
These months score higher for Porto on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in December
If the destination is negotiable but the month is not, these places are at their best in December.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
