If you go on the Cammino Materano in Italy in April, the weather should be okay but can change. You might get sun, clouds, and some rain.
In places like Bari and Bitetto, it's usually warm at around 10°C to 18°C with a bit of rain and lots of sunshine. As you go further to places like Cassano Delle Murge and Santeramo In Colle, expect cooler temperatures around 16°C with more rain.
In towns like Altamura and Gravina In Puglia, you may face more heavy rain but the temperature stays around 16°-17°C. As you keep walking towards Picciano and Matera, the place becomes brighter and drier with pleasant temperatures between 16°C to 18°C.
So, during this trip, you'll face different weathers like sunny, cloudy and rainy days with mild temperatures.
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