Do Moon Phases Affect Fishing? Plus the Weather Rules That Matter
Is there a right time to fish? Our expert angler shares tips on how picking the right fishing weather conditions and Moon phases can set you up for success every time you cast your line.
Quick Reference
- Best moon phases: Days surrounding a full or new Moon.
- Best time of day: Dawn and dusk. Cloudy days beat sunny days.
- Best pressure: Falling barometer, peaking just before bad weather arrives.
- Worst conditions: Bright sun, high pressure, calm clear cold days right after a front.
- FA tool: Best Days Fishing Calendar uses lunar position plus tides.
Most anglers would not dream of heading out without proper gear, yet many ignore how fish actually interact with their environment. Reading that interaction is what separates the day-long no-bite from the limit caught by lunch. The Farmers’ Almanac has been printing Best Days Fishing Calendars for over a century. The rules below combine that lunar timing with what modern fisheries science says about weather and fish behavior.
Moon Phases and Fishing
The phases of the Moon shape fish activity. Like deer, fish feed most actively during the few days before and after a full Moon or new Moon. The peak windows are even better when moonrise or moonset coincides with sunrise or sunset. The Farmers’ Almanac calendar pages list precise moonrise and moonset times. All-Access Members see them on the dashboard.
Saltwater fish are especially Moon-sensitive because lunar gravity drives the tides. Spring tides (around new and full Moons) push higher highs and lower lows. Higher tides flood new hunting grounds. Lower tides concentrate baitfish into smaller channels. Both create predictable feeding windows.
The single best habit for any serious angler is a fishing journal. Log the weather, the time, the Moon phase, the tide, the gear, and the result. Three seasons of notes will tell you more about your home waters than any book.
Weather’s Role in Fishing
- Air temperature. Ideal water temperature varies by species. A few hot or cold days can push water past the sweet spot, especially on small bodies. Trout shut down above 70°F. Bass slow below 50°F.
- Sun or clouds. Sunny days draw anglers; cloudy days catch fish. Clouds remove the shadow gradient that spooks fish near the banks. Predatory species often have better low-light vision than their prey, so they hunt more aggressively under overcast. Dawn and dusk are the same idea, in miniature.
- Heavy rain. Often shuts down the bite in small bodies of water, and being on the water in heavy rain is unpleasant or dangerous. Light rain or drizzle, however, is great. Surface noise hides leader and angler movement.
- Wind. Moderate wind churns the surface, oxygenates the water, and pushes baitfish toward the windward shore where game fish ambush them. Strong wind makes casting impossible and can swamp a small boat. Read the forecast.
- Barometric pressure. The single most reliable predictor of an active bite. A falling barometer brings fish to feed aggressively, with peak activity at the lowest pressure right before a storm. A rising barometer (cool clear post-front days) shuts the bite down. Switch to a slow finesse approach or stay home.
Best Fishing Weather and Time at a Glance
| Condition | Bite quality | Tactic |
|---|---|---|
| Falling pressure, cloudy, light wind, dusk | Excellent | Fast aggressive presentations, top-water |
| Stable mild day, scattered clouds, new or full Moon | Good | Standard technique, match-the-hatch |
| Bright sun, flat calm, mid-day | Poor | Fish deep with slow presentation, or wait for dusk |
| Rising pressure, cold clear post-front day | Very poor | Tie flies for next trip, or finesse small live bait deep |
| Heavy rain, lightning | Stay home | Safety first. Lightning kills more anglers than any other weather |
The Best Days Fishing Calendar
The Almanac has been publishing Best Days Fishing Calendars based on lunar timing for over 200 years. The current calendar combines Moon phase with the Moon’s zodiac sign, then weights for moonrise and moonset relative to sunrise and sunset. The result is a daily rating that does the math for you. See the Best Days Fishing Calendar for this month’s top days.
Frequently Asked Questions
Do moon phases really affect fishing?
Yes, especially in saltwater. Lunar gravity drives the tides, which control where baitfish concentrate and when game fish hunt. In freshwater the moonlight itself plays a role: a full Moon often triggers a night feeding window that an angler can fish at dawn.
What is the best weather for fishing?
A falling barometer with overcast skies and a moderate wind. The bite peaks at the lowest pressure right before a storm arrives. Add dawn or dusk timing and the conditions are about as good as freshwater gets.
Why does barometric pressure matter to fish?
Fish detect pressure changes through the swim bladder and lateral line. A falling barometer signals that food is about to be disturbed by rain or wind, so they feed aggressively. A rising barometer signals stable, settled conditions and the bite slows. The swing matters more than the absolute reading.
What time of day is best for fishing?
Dawn and dusk in nearly every season. Predatory fish have stronger low-light vision than their prey, which gives them an ambush advantage. Mid-day is the worst window under bright sun unless you fish deep water.
Should I fish in the rain?
Light rain and drizzle, yes. Heavy rain in small bodies of water can shut the bite down by muddying the water. Avoid any fishing during lightning. Lightning kills more anglers than any other weather hazard.
What is the Best Days Fishing Calendar?
An Almanac monthly calendar that combines Moon phase, Moon zodiac sign, and the alignment of moonrise and moonset with sunrise and sunset. See the current month’s calendar here.
Butch Mockler
Butch Mockler is a New Jersey native now living in Southern Maine with his wife and son (and hound dog). He’s a woodworker by trade, a writer in his spare time and an avid fisherman and bow hunter. He also comes from a long line of fine Italian home cooks, and has discovered a new passion in gardening and homesteading. His article, Small Space Gardening Ideas, appears in the 2019 Farmers' Almanac.
- Butch Mockler
This post has nothing to do with fishing.
My dad started taking us fishing when I was a kid back in the 60s. He discovered back then that the fish bit more at high tide and would plan our fishing times according to the tide table. We were fishing in creeks and rivers so the water level didn’t change noticeably. He was convinced that the gravitational pull of the moon at its strongest point had an effect on feeding activity for fish and even land animals. We always caught more fish around the high tide.
I watch the barometer very closely while fishing. If it’s slowly dropping with a storm coming in, The fish seem to bite the best. But when it starts raining, go home. The bike turns off.
A red sky at night is a sailor’s delight.
A red sky in the morning is a sailor’s warning.
We have a great article on that lore on our site Virginia – https://www.farmersalmanac.com/red-sky-at-night-15843
This is very good information, and accurate. I fish by the barometer all the time and it does help the bite considerably. Thanks for the good information Farmers’ Almanac.
Glad you found it useful Rowand. Thank you for visiting our site and commenting. Hope you check out our other fishing content including our best days to go fishing – https://www.farmersalmanac.com/calendar/fishing-calendar-best-days-to-fish
Since I was a kid, Dad would always go by the solunar (tide) table to pick the best time to catch fish. This was in fresh water creeks and rivers. We always experienced an uptick in biting closest to the high tide. Low tide had an effect on feeding similar to what the high pressure cold front did; it slowed down. We’ve been fishing hundreds of times and would almost always see this work.
I live in Kuna,Idaho
What about fly fishing for trout in the Rocky Mountains
Colors are important for success too. The deeper you fish, the more you are likely to need to present the ultraviolet side of the color spectrum–purple, blue, green, chartreuse. These are the LAST colors to disappear the further that you go deep. The FIRST colors ro disappear are the infrareds including–red, pink, yellow and white. As a general rule, I tend to try to fish as deep or as shallow as where the fish are as determined by weather and lighting conditions. Fish are often serious predators and it helps if they see their targeeted meal. So make it easier for them.
Fish on !!!!
Great info, Hank! Thank you!
I live near Baton Rouge, Louisiana. I fish in Laffite, Louisiana, Lake Salvadore, the Pen and surrounding waters. Due to the recent hurricanes going on in the Gulf of Mexico, the tide has been higher than normal, I have caught some of my best limits the last month or two that I have ever caught, I am originally from Alabama but been living and fishing here in south Louisiana for almost 20 years. I know why they call this state, Sportsman Paradise.
Chad: Excellent! Thanks for sharing.