March in Cacém averages a daily high of 18.6°C with nights around 11.1°C. Expect roughly 9.3 wet days totalling 79.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cacém is May–September.
Based on LISBOA GEOFISICA, PO (14km), 1995–2024. 25 years of March data.