Construct a comparative sentence to compare the weather of two cities.
Berlin, Rome
The weather in Berlin is cooler and more variable than the consistent warmth in Rome.
Complete the following task based on the instruction and optional input provided.### Instruction:
Construct a comparative sentence to compare the weather of two cities.

### Input:
Berlin, Rome

### Output:
The weather in Berlin is cooler and more variable than the consistent warmth in Rome.