Is Today a Good Day to Go Fishing?

Is Today a Good Day to Go Fishing?

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Key takeaways

  •  Environmental factors like temp, wind, pressure, and rain crucially impact fishing success.
  •  Fish activity increases with certain conditions like overcast skies and breezy weather.
  •  Ideal fishing involves cooling temps, falling pressure, cloud cover, and specific times.
  •  Fish behavior responds to moon phases and tidal flows, especially in saltwater fishing.

Thinking of going fishing today? It’s critical to consider a variety of environmental factors that can significantly impact your success by the water. Ideal fishing conditions typically involve a mix of elements such as temperature, wind speed, atmospheric pressure, and precipitation levels.

Let me share a quick story from my own experience. Last spring, I headed out for a day of fishing, not paying much attention to the environmental cues. The day was overcast, with a slight breeze—conditions I didn't think much of at the time. To my surprise, these seemingly unremarkable conditions aligned perfectly, making the fish particularly active. That day, I had one of my most successful catches ever, a vivid reminder of how closely fish behavior is tied to their environment.

So let’s break down the key elements to look for, so you'll know whether you should grab your gear, or maybe just kick back and plan for another day.

Table of Contents


Most fish species are cold-blooded and cannot regulate their body temperature, thus their metabolism adjusts to the surrounding water temperature​​. Fun fact: a fish called the opah is the only known fully warm-blooded fish, according to NOAA.

Is today a good day to go fishing?

But I digress. As temperatures rise, fish digest food quicker, have more energy, feed more often, and become more active, making them easier to catch. However, extreme temperatures can decrease the dissolved oxygen in the water, affecting fish health​​​​.

Increased temperatures lead to a higher rate of metabolic function in fish, altering their respiration rate, need for oxygen, and feeding habits​​.

Barometric Pressure

Fish can sense changes in atmospheric pressure, which impacts their behavior. Low-pressure systems, associated with bad weather, can make fish feed more aggressively and become more active​​.

I remember fishing just before a storm when the dropping pressure made the fish almost frantic in their feeding, resulting in a surprisingly fruitful day despite the looming bad weather.

Is today a good day to go fishing?

Fish respond to falling barometric pressure by increasing their activity, as the reduced pressure on their air bladders makes it easier for them to swim and hunt​​.

While falling pressure indicates good fishing opportunities, stable low pressure is less favorable, as fish activity may decrease and require different fishing strategies.

Speaking of barometric pressure, did you know about this superstition involving cows grazing in fields and fishing?


Wind influences water currents, temperature, and oxygen levels, affecting fish behavior and feeding patterns. It can also create challenging fishing conditions, like casting difficulties and boat control issues​​​​.

Wind-induced water movement stirs up food sources for fish, potentially making them more active and likely to feed during certain wind conditions​​.


Heavy rain influences river fishing by carrying food into the river and stirring up aquatic creatures, often resulting in a feeding frenzy among fish. It can also make the water murky and cool, encouraging larger fish to move more freely​​.

Is today a good day to go fishing?

In lakes, rainy weather creates favorable conditions by activating fish, especially in clear water. Rain aerates surface water, often has a cooling effect, and disturbs the surface, impairing fish's ability to see anglers.

Cloud Cover

Cloud cover affects the amount of light penetrating the water. Bright, sunny days result in deeper light penetration, making it easier for fish to see and be seen. Conversely, on overcast days, less light reaches the water, making it more difficult for fish to spot bait or lures​​.

Cloud cover also impacts water temperature. Sunny days can heat the water, making fish more active and likely to feed. On cloudy days, the water may be cooler, leading to less fish activity​​.

Fish location in the water can also be influenced by cloud cover. On sunny days, fish may seek shelter in deeper water, while on cloudy days, they may move into shallower water to feed​​.

Moon Phase

The moon influences tidal flow, which is crucial for fishing, especially in saltwater environments. The greatest tidal currents occur during full and new moon periods​​. We talk more about this in the post When Is The Best Time To Fish?

Many species of fish, including marlin and mahi mahi, show increased activity around the full moon. However, some fish feed all night during a full moon and are less active during the day​​​​​​​​​​​​.

Fish like king mackerel and tarpon are also influenced by the moon phase, showing different feeding behaviors during full and new moons​​​​​​​​​​.

Tidal flow, affected by the moon phase, turns on the feeding switch for most game fish, with stronger currents around big tides occurring around full and new moons​​.

Time of Day

The best times for fishing are generally during reduced daylight hours, from dawn until 2 hours after sunrise, and from 2 hours before sunset until dusk. During these times, light is reduced, prey becomes more active, and water temperatures cool, allowing fish to more freely hunt for food​​.

Is today a good day to go fishing?

Nighttime can also be effective for fishing, particularly for species like carp, catfish, and walleye. However, the middle of the day is usually slower, except during rain or cloudy conditions, which can enhance fish activity.

Final Thoughts

As we've explored, a variety of environmental factors can significantly impact fishing success on any given day. Key elements to consider before heading out include water temperature, barometric pressure, wind, precipitation, cloud cover, moon phase, and time of day. Paying attention to these cues can help predict fish behavior and activity levels.

Ideal conditions often involve cooling water temperatures, falling barometric pressure, cloud cover, and reduced daylight hours around dawn, dusk or nighttime. However, other scenarios like wind and rain can also spur feeding frenzies. It's important to remain flexible and adapt methods to match the present conditions. Tight lines!

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