Slice the cucumbers and red onion thinly. Halve the cherry tomatoes.

In a small bowl, whisk together olive oil, red wine vinegar, dijon mustard, honey, salt, and black pepper.

In a large mixing bowl, combine the sliced cucumbers, red onion, cherry tomatoes, and chopped dill. Pour the dressing over the salad and toss to combine.

Serve immediately or refrigerate for 30 minutes to allow flavors to meld.