Why sunscreen and bug spray matter on the water
Sunscreen and bug spray are not optional on a fishing trip — they are the difference between a comfortable day and one you spend scratching or burned. Water reflects UV rays upward and sideways, so you get hit harder than you would on land. Bugs are often worse near water, especially in spring and early summer, and they bite through inattention faster than you can cast. Both products degrade in heat and with sweat, so what worked at 8 a.m. may not hold at noon.
The right choice depends on where you are fishing, what time of year, and how long you plan to stay out. A lake in the Midwest in June needs different protection than a saltwater flat in Florida in December. Knowing what to bring and when to reapply keeps you focused on fishing instead of discomfort.
Key Takeaways
- Sunscreen rated SPF 30 or higher should be reapplied every two hours or after swimming, sweating, or toweling off.
- Bug spray with DEET (20 to 30 percent) or picaridin (20 percent) works best for mosquitoes and biting flies near water.
- Apply sunscreen first, then bug spray 15 minutes later, because applying them together reduces the effectiveness of both.
- Waterproof formulas last longer on the water, but no sunscreen or bug spray is truly waterproof — reapplication is always necessary.
- Bugs are heaviest in early morning and evening, so timing your trip can reduce how much spray you need.
Choosing the right sunscreen for fishing
Use SPF 30 or higher — SPF 50 offers only slightly more protection than SPF 30, and the difference matters less than consistent reapplication. Broad-spectrum sunscreen blocks both UVA and UVB rays. On the water, where reflection amplifies exposure, this matters more than it does on land.
Waterproof or water-resistant sunscreen lasts longer when you are wet, but the label matters: "water-resistant (80 minutes)" means it holds through 80 minutes of swimming or sweating, not that it never washes off. Reapply after that window closes, after you towel off, or if you fall in. Zinc oxide and titanium dioxide (mineral sunscreens) sit on top of skin and wash off more easily than chemical sunscreens, but they do not sting eyes when you sweat — a real advantage on a boat. Chemical sunscreens (oxybenzone, avobenzone) absorb into skin and last longer, but they run into eyes more readily.
Sunscreen sticks and lip balms with SPF are worth carrying because they do not drip into your eyes when you sweat and they are easy to reapply without your hands. A small stick takes up almost no space in a tackle bag.
Selecting bug spray for water environments
DEET (the chemical N,N-diethyl-meta-toluamide) is the most effective active ingredient for mosquitoes and biting flies. Concentrations of 20 to 30 percent work well for most fishing situations — higher concentrations do not provide much more protection, just longer duration. A 20 percent DEET spray lasts roughly 4 to 5 hours; 30 percent lasts 5 to 6 hours. Anything above 30 percent offers diminishing returns.
Picaridin (20 percent) is nearly as effective as DEET and feels less greasy on skin. It has a milder smell and does not damage plastic or synthetic materials the way DEET can. If you are sensitive to DEET or dislike the feel, picaridin is a solid alternative.
Oil of lemon eucalyptus (OLE) is a plant-based option that works against mosquitoes but is less reliable than DEET or picaridin, especially in heavy bug conditions. It also needs reapplication every 1 to 2 hours instead of 4 to 6. Use it if you prefer natural products and accept shorter protection windows.
Spray bottles are easier to apply than lotions when you are on the water and your hands are wet or holding a rod. Lotions give better coverage on your face and neck if you take time to rub them in. Wipes are convenient for reapplication mid-trip because they do not require your hands to be dry.
How to apply both products without reducing their effectiveness
Apply sunscreen first and let it dry or set for 10 to 15 minutes before applying bug spray. Applying them at the same time or in reverse order reduces how well each one works — the products interfere with each other's protective layer. If you are in a hurry, spray sunscreen (which dries faster than lotion) and wait a few minutes before adding bug spray.
Reapply sunscreen every two hours, or sooner if you swim, fall in, or sweat heavily. Reapply bug spray every 4 to 6 hours depending on the product and how much you are sweating or getting wet. If you are fishing a full day, you will need to reapply both at least once, possibly twice.
Do not apply bug spray to areas where you will hold your rod or handle fish — it can transfer to your hands and then to your face or eyes. Spray your neck, ears, and the backs of your hands, but leave your palms and fingers clear. Reapply to those areas only if you wash your hands.
Regional and seasonal bug patterns
Mosquitoes and biting flies are heaviest in spring and early summer, especially near freshwater lakes, marshes, and slow rivers. Coastal areas have fewer mosquitoes but more stable flies (also called greenheads) and sand flies, which are aggressive and bite through light clothing. In the South, bugs stay active longer into fall and winter than they do in northern states.
Early morning (dawn to mid-morning) and evening (late afternoon through dusk) are peak bug times almost everywhere. If you fish midday, you can often get away with lighter bug protection. If you are on the water at sunrise or sunset, bring full-strength spray and plan to reapply.
Windy days reduce bug pressure because insects struggle to fly in wind. Calm, humid days are worst. If you have a choice of when to fish, wind is your friend for bug relief.
What to pack and how to store it
Bring more sunscreen and bug spray than you think you need — it is light and takes minimal space. A small bottle of each (3 to 4 ounces) covers a full day for one person. If you are fishing with others, bring extra.
Heat degrades both products, so store them in a cooler or in the shade of your boat or vehicle. Sunscreen left in direct sun on a dashboard or in a tackle bag in the sun loses potency faster. Bug spray evaporates in heat, so a sealed bottle in a cool place lasts longer than an open one in a hot truck bed.
Check the expiration date before you go. Sunscreen typically lasts three years from the date of manufacture (often printed on the bottle), and bug spray lasts several years if sealed. An expired product may not work as advertised.
Frequently Asked Questions
Can I use the same sunscreen on my face and body?
Yes, but facial sunscreen formulas are often lighter and less likely to clog pores or sting eyes. If you only have one bottle, use it everywhere. If you have room, a separate facial sunscreen makes reapplication less irritating during a long day on the water.
Does bug spray wash off if I get wet?
Yes, water removes bug spray faster than it removes waterproof sunscreen. If you swim or fall in, reapply bug spray when you dry off. Waterproof bug spray lasts longer in water than regular spray, but no bug spray is truly waterproof — reapplication is always necessary after heavy water exposure.
What if I am allergic to DEET?
Try picaridin (20 percent) first — it is nearly as effective and causes fewer reactions. Oil of lemon eucalyptus is another option, though it requires more frequent reapplication. Test any new product on a small area of skin before a full day on the water.
Can I apply bug spray over sunscreen, or does order matter?
Order matters. Apply sunscreen first and let it set for 10 to 15 minutes, then apply bug spray. Applying them together or in reverse order reduces the protection both provide. If you are in a hurry, use spray sunscreen (which dries faster) and wait a few minutes before adding bug spray.
How often do I really need to reapply?
Sunscreen every two hours or after swimming and sweating. Bug spray every 4 to 6 hours depending on the product and how wet you are. On a full day, plan to reapply both at least once. Wipes or small bottles make midday reapplication easier than carrying full-size containers.