Wash the cucumbers and radishes thoroughly under cold running water. Slice cucumbers into thin rounds and cut radishes into matchsticks or thin rounds.

Finely chop the fresh dill and chives, then add to the bowl with sliced cucumbers and radishes.

In a small bowl, whisk together the whole grain mustard, honey, and olive oil until emulsified.

Pour the vinaigrette over the cucumber, radish, and herb mixture and gently toss to combine.

Cover and chill the salad in the refrigerator for approximately 30 minutes before serving.