Tomatoes hate dry spells, but remember that too much water will lead to “cat cracking” in ripening fruit. Once the tomato starts to color, it can no longer grow larger and the skin breaks open. The damage is only cosmetic and the fruit is completely edible.
Keep harvesting regularly. If you’ll be away, invite a friend to help herself. Many plants stop producing if the fruit matures and begins to set seed. If you have excess produce at any time, contact your local food cupboard to find their out their distribution days so you can share your bounty.