Climate & Best Travel Time
Portugal has a Mediterranean to Atlantic climate — summers are warm and dry, winters mild and rainy. However, there are significant regional differences.
Lisbon & Central Portugal
| Month | Temp. (°C) | Rainy Days | Sun Hours | Rating |
|---|---|---|---|---|
| Jan | 8–15 | 10 | 5 | Low season, mild |
| Feb | 9–16 | 9 | 6 | Algarve almond blossom |
| Mar | 10–18 | 7 | 7 | Spring begins |
| Apr | 12–20 | 7 | 8 | Ideal for sightseeing |
| May | 14–23 | 5 | 10 | Perfect, still quiet |
| Jun | 17–27 | 2 | 11 | Santos Populares (Festivals) |
| Jul | 19–30 | 1 | 12 | High season, hot |
| Aug | 19–30 | 1 | 11 | High season, hot |
| Sep | 17–28 | 3 | 9 | Ideal, sea still warm |
| Oct | 14–23 | 7 | 7 | Pleasant, grape harvest |
| Nov | 11–18 | 9 | 5 | Rainier |
| Dec | 9–15 | 10 | 5 | Christmas atmosphere |
Regional Features
- Algarve: Warmest region in Portugal. Rarely below 10°C in winter, up to 35°C in summer. 300 sunny days per year. Water temperatures in summer 20–23°C
- North (Porto, Minho): Significantly rainier and cooler than the south. In winter, it can be quite cold and wet. However, summer is more pleasant (not as hot as in Lisbon or the Algarve)
- Azores: Oceanic climate — mild, humid, and unpredictable. "Four seasons in one day" is no exaggeration. Best time: May–September
- Madeira: Mild year-round (16–25°C). The north is wetter than the south. Ideal for winter escapees
Best Travel Time
May/June and September/October are the best travel months: pleasant temperatures, fewer tourists than in high summer, and lower prices. July/August is high season — the Algarve and Lisbon can be crowded and very hot (over 40°C inland).