Every serious archer will at one time or another shoot in the rain. There are some things you can do to be more effective when the heavens open.
The first and most important thing is to stay positive. Everyone will have to deal with the rain, but those who bring a focused and bright outlook have a better chance of rising to the challenge.
Monitor the intensity of the rain and adjust your sight. Yes your arrows will impact lower on the target because of the rain. The heavier the downpour the more you’ll need to move your sight. As the rain changes intensity you will have to move your sight. So keep track of how hard it is raining!
Keep at least two tabs in your quiver. A dry tab shoots differently than a wet tab. Of course these tabs should have already been broken in.
For compound shooters a rain hood for your scope can be helpful.
Pluck your string ahead of shooting your first arrow of an end when it’s raining. Water will gather on the string making it heavier and slower. Just a slight pluck is sufficient to shed excess water. Yes, this is a must do in the rain.
Make sure you have towels on hand to dry your hands and wipe your grip.
Most spotting scopes are weather proof and should need no extra attention. Some will cover the eye piece between ends, but I’ve found the extra hassle unnecessary.
Clothing yourself properly will go a long way to help you keep your focus on shooting. Hats with a brim are a must and waterproof hats are even better. Convertible rain coats (a coat with removable sleeves) are available at bike shops and should be part of your shooting gear. Rain pants can make you more comfortable, especially if it is cool out. Waterproof footwear is very important. I wear golf shoes in soggy conditions.
When the tournament is concluded, many just throw their equipment in their bags as quickly as possible. I know I do, but don’t forget to unpack it all as soon as is practicable and let it air dry. Things like tabs, hats and water permeable finger slings, need extra time to fully dry.
Those archers who approach rainy conditions with knowledge and preparedness can succeed and have fun.