Porto or Lisbon in June?
On climate data, Lisbon comes out ahead overall in June. See the per-criterion details below.
PortoPhoto: Ken & Nyetta · CC BY 2.0
LisbonPhoto: Dale Cruse - 10M views from San Francisco, CA, USA · CC BY 4.0Key figures in June
| Criterion | Porto | Lisbon |
|---|---|---|
| Average daily high | 22 °C | 21 °C |
| Average daily low | 15 °C | 17 °C |
| Sea | 17 °C | 18 °C ★ |
| Rainy days | 6 rainy days (est.) | 3 rainy days (est.) ★ |
| Sun | 9 h/day | 9 h/day |
| Humidity | 76 % | 80 % |
Winner by travel type
Trade-offs
- Lisbon is drier, with about 3 fewer rainy days.
- The sea at Lisbon is about 1 °C warmer.
Porto or Lisbon in June: the short answer
In June, Lisbon comes out ahead on the overall climate score (Porto 78/100 vs Lisbon 79/100). That is a snapshot of one month, though — which one truly fits depends on what you want from the trip, so the breakdown below goes criterion by criterion.
This comparison focuses on June as a representative month for the pair; for any other month, use each destination's month-by-month pages. Across the whole year Porto averages a climate score of 57/100, Lisbon 64/100. Both profiles below are historical monthly averages, not a forecast.
Weather in June, side by side
The average daily high is about 22 °C in Porto and 21 °C in Lisbon — warmer in Porto. Average daily lows are around 15 °C versus 17 °C.
On rain, Porto sees about 6 rainy days in June and Lisbon about 3 — drier in Lisbon. Sunshine is comparable (9 vs 9 hours a day).
Sea temperature and swimming
In June the water is about 17 °C at Porto and 18 °C at Lisbon — warmer for swimming at Lisbon. Neither Porto nor Lisbon reaches the ~21 °C swimming threshold in any month. Peak sea warmth is September for Porto and September for Lisbon.
Rain and sun across the year
Over a full year Porto records roughly 117 rainy days and Lisbon about 86 — the drier of the two overall is Lisbon. At their sunniest, Porto reaches about 9 hours of sun a day (July) and Lisbon about 9 (July). If dependable dry, sunny weather is your top priority, weigh these annual totals alongside the single month above.
Best time to visit each
Climatically, Porto is at its best in June, July, August and September, while Lisbon peaks in June, July, August and September. If your dates are fixed, pick the destination whose strong season overlaps them; if you are flexible, plan around these windows.
Which suits which kind of trip
Based on the June scores for each travel style:
Beach & swimming: Lisbon scores higher in June (Porto 66 vs Lisbon 68).
City breaks: Lisbon scores higher in June (Porto 97 vs Lisbon 98).
Active & hiking: Lisbon scores higher in June (Porto 89 vs Lisbon 93).
Family: Porto scores higher in June (Porto 69 vs Lisbon 67).
Verdict: which should you pick?
There is no single winner — it depends on your month and your priority. For June specifically, use the head-to-head above; over the year, Lisbon carries the slightly higher overall climate score. Choose Porto if its strong months and profile match your plan, Lisbon if its do. The month-by-month pages for each destination give you the full picture before you book.