My eyes used to water a lot especially in cold, hot or windy conditions. I thought it was due to allergies or pollution. It could be embarrassing as people thought I was crying.
At my last eye test I mentioned it to my optician and she said it was dry eye. She suggested using an eye gel. I bought some tubes of VITA-POS on amazon, which is a petroleum gel, which I applied every morning. I didn't think it was helping much, but I haven't experienced watery eyes recently.