21 cities with 30-year climate records.
| City | Climate | Best time to visit |
|---|---|---|
| Lisbon | May–September | |
| Porto | June–September | |
| Braga | June–September | |
| Amadora | May–September | |
| Coimbra | June–July | |
| Leiria | June–July | |
| Setúbal | May–September | |
| Funchal | April–September | |
| Queluz | May–September | |
| Cacém | May–September | |
| Aveiro | June–September | |
| Vila Nova de Gaia | June–September | |
| Algueirão | May–September | |
| Loures | May–September | |
| Felgueiras | June–September | |
| Rio de Mouro | May–September | |
| Odivelas | May–September | |
| Évora | May | |
| Amora | May–September | |
| Corroios | May–September | |
| Barreiro | May–September |