What Is the Best Barometric Pressure for Fishing?


11 min read

The best barometric pressure for fishing can vary depending on the species of fish you are targeting and the location you are fishing. However, in general, many anglers believe that moderate barometric pressure is best for fishing. High-pressure systems, which are associated with clear skies and calm winds, can make fish less active and harder to catch. Low-pressure systems, on the other hand, are often associated with clouds, rain, and wind, and can make fish more active and feed aggressively.

In this article, we will discuss the relationship between barometric pressure and fishing and provide some tips on how to use barometric pressure to your advantage when fishing.

We'll also explore the best barometric pressure for different species of fish, and provide some guidance on how to interpret barometric pressure readings. Whether you are a beginner or an experienced angler, this guide will help you understand the role of barometric pressure in fishing and improve your chances of catching fish.

What you need to know about the pressure Best Barometric Pressure for Fishing

Every fan of sitting on the shore with a fishing rod should be aware that the pressure for catching fish is a very significant indicator. Many anglers wonder why a few days ago the catch was just fine, but today the fish do not bite at all.

Ichthyologists assure that drastic changes in the behavior of river inhabitants can just be associated with changes in this value.

[caption id="attachment_2241" align="aligncenter" width="300"]Best Barometric Pressure for Fishing Best Barometric Pressure for Fishing[/caption]

That is why, in order not to sit by the shore with a fishing rod in vain and not waste your time, you need to know what the behavior of the barometer needle indicates:

  • If the atmospheric pressure is high, the weather will soon begin to return to normal, and the amount of precipitation will decrease several times. In winter, at high rates, the air temperature usually drops slightly, while in spring and summer, on the contrary, it becomes warmer.
  • At low pressure in the atmosphere, the probability of precipitation increases several times. Due to the fact that the air becomes more humid in summer, the air temperature drops by several degrees, but it becomes warmer in winter.

The bite of a fish for the most part does not depend on the atmospheric value itself, but also on whether the fish has had time to get used to such changes.

While the river inhabitants will adapt to new conditions, fishing will be ineffective, since the fish's interest in food is minimal.

What pressure is considered ideal and when is the best time for fish to bite? Experienced anglers warn that the chance to come with a good catch appears when the value remains within the normal range - about 750 mm. Hg. Art. A deviation of a couple of divisions in one direction or another is also not considered critical and will not affect the bite in any way.

[caption id="attachment_2238" align="aligncenter" width="1024"]Best Barometric Pressure for Fishing Best Barometric Pressure for Fishing[/caption]

The summary beneath will help visualize the best time choice air pressure for angling to increase your convenience for a good catch:

High Pressure (30.5 inHg and over/Clear Skies): Fish bite medium to slow. Fish slowly in deeper water or near cover.

Medium Pressure (29.70 inHg - 30.40 inHg/Fair Weather): Normal fishing conditions. Test different lures, baits, and fishing techniques to meet the needs of the fish.

Low Pressure (29.6 inHg and under/Cloudy/Rainy Weather): Fish will be less active. Fish slowly in deeper water or near cover.

Rising Pressure/Improving Weather: Fish are slightly active. Fish slowly in deeper water or near cover.

Stable Pressure/Fair Weather: Normal fishing conditions. Test different lures, baits, and fishing techniques to meet the needs of the fish.

Falling Pressure/Degrading Weather: Best fishing conditions. The fish are very active—they will feed on anything they can get.

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Why pressure affects fish behavior

There is an erroneous popular belief that fish are practically insensitive, they just swim randomly around the reservoir. This assumption is a pure fallacy. In fact, these creatures react quite sharply not only to pressure drops but also to changes in air temperature.

[caption id="attachment_2199" align="aligncenter" width="300"]Why pressure affects fish behavior Why pressure affects fish behavior[/caption]

Depending on these values, the volume of the bladder in fish will either increase or decrease, affecting the buoyancy itself. The influence of atmospheric pressure on fish biting is simply colossal, since, based on the environmental conditions, even large individuals can either be dragged to the bottom or pushed closer to the surface.

Barometric pressure fluctuations are extremely important for fishing because the fluctuations affect the fish in the following ways:

A change in the volume of the swim bladder directly affects the functioning of the digestive tract. If the value drops, the bite will become worse, because due to the increase in the volume of the organ, the fish will have to eat less. At high rates, it is more convenient for almost all types of fish to be at a depth, they will also peck closer to the bottom;

The dependence of biting on pressure is also quite large since differences affect the ability of the fish to navigate in space. Until the optimal pressure (stable) is established, you can forget about fishing. Each fish reacts sharply to such changes; it takes at least 3-4 days to get used to new environmental conditions;

Atmospheric pressure affects the bite also because the density of water and the oxygen content depends on the value. If the barometer needle crosses the 750 mm mark. rt. Art., the density of water will increase, and the oxygen content, on the contrary, will decrease. For most river inhabitants, lack of oxygen is an unfavorable factor that slows down most vital processes, including digestion.

[caption id="attachment_2243" align="aligncenter" width="300"]summer fishing summer fishing[/caption]

Increased pressure in summer is almost always accompanied by complete calm. Many beginners in such weather have the opinion that there are absolutely no fish in the reservoir.

But in fact, such a reaction of fish is caused by the fact that it is not so comfortable for them to move around the reservoir due to the fact that water practically does not mix with air. That is why it is simply not necessary to count on successful fishing in such weather.

Optimal fishing pressure

At what pressure do fish bite best? Before you decide on the ideal value and find out what is the best time to fish, you need to note for yourself that another important factor is the wind. The wind also affects the bite and pressure surges depend on it.

Every fishing lover needs to remember the following rules:

You also need to consider if the pressure in the atmosphere is favorable, but the wind gusts are very strong and the direction will constantly change, such weather conditions are considered unsuitable for fishing.

To catch the best catch a few days before the planned fishing, you need to follow the barometer readings. The pressure should be stable and normal (760 mm Hg) for at least 3 days. If on the day of the intended fishing there is no strong jump in one direction or another (more than 8 values), fishing is a must, as a good catch under such conditions is guaranteed.

The best atmospheric pressure in any case, regardless of the time of year, is 760 mm. Hg. Art. This value is almost ideal, most fish species with it will show interest in lure and bait.

What are the signs of rapid pressure drops

Since so much depends on pressure, every experienced angler should be able to understand weather conditions, including predicting jumps in atmospheric pressure without the use of related items (after all, a barometer is not always at hand). A lot of lovers of such a pastime leave for nature with fishing rods for several days at once, but if carp and bream are caught well today, this does not mean at all that the situation will be similar the next day.

Normal pressure can decrease or increase quite quickly, such changes can be predicted by the following signs:

  • Very thick and dense fog appears early at dawn;
  • Cloudy weather changed to sunny in just a few hours;
  • The air temperature gradually began to increase (the nights also became warmer);
  • Very weak wind or its complete absence;
  • Increased cloudiness;
  • A large amount of foam began to accumulate near the shore.

Each of these factors is a sure sign of coming changes in the weather and an indication of low or high pressure on the way.

Fishing at low pressure

It has long been known how atmospheric pressure affects fish. Nevertheless, experts assure that you can get a good catch at any value of this indicator. The main thing is to know what types of fish are best to catch depending on weather conditions.

[caption id="attachment_2242" align="aligncenter" width="300"]Fishing at low pressure Fishing at low pressure[/caption]

At low pressure, it is better and more expedient to catch river predators, but representatives that feed mainly on plant foods become inactive. Roach and other small fish begin to sink to the bottom, provoking predators to rise closer to the surface for food.

Under such weather conditions, the probability of catching such individuals increases significantly:

  • Perch.
  • Pike.
  • Catfish.
  • Zander.
  • Burbot.

But it must be remembered that low pressure must also be stable and last at least 5 days, otherwise, you can be left without a catch.

Fishing at high pressure

If high pressure lasts for several days, it is recommended to go fishing for peaceful fish. The probability of catching a large predator is almost zero since in most cases they simply "lie to the bottom." Ichthyologists say that predatory fish do not tolerate sunlight and heat, so they try not to stick out on clear days with high pressure.

But in such conditions, it will be very good to catch fish with white meat.

  • catch:
  • roach;
  • sablefish;
  • carp.

There were exceptions when fishermen also managed to pull out predators such as asp or pike perch. To create the most favorable conditions, it is better to fish early at dawn, when the sun has not yet fully risen, and the air has not had time to warm up.

It is very important to remember that under bright sunlight, even fish that feed on vegetation rarely rise to the surface of the reservoir.

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Additional Recommendations

The success of the catch largely depends on atmospheric pressure, both low and low. That is why, in order to increase the bite, it is recommended to look at the barometer before going fishing, you need to correctly determine the tactics of fishing.

Also, experienced anglers are advised to follow these recommendations:

  1. With increased pressure, it is better to fish in the early morning. During the night, the water will have time to cool down a little, which will create favorable conditions for raising the fish to the upper layers of the reservoir. Such features of behavior are also due to the fact that a large amount of oxygen accumulates at the surface of the reservoir.
  2. If the pressure drops down, it is better to replace the fishing rod with a spinning rod or a feeder and go fishing for a large predator. But you need to remember that it is best to look for fish in deep water areas, also under snags and in thickets.
  3. The well-being of fish is affected not only by pressure, but also by the season. In summer and late spring, peaceful fish species are much better caught, but in autumn and winter you can try to catch a predator.
  4. If the reservoir is full of small fish, as well as roach and crucian carp, then it probably contains predators, such as pike perch and asp. It is recommended to wait for the atmospheric pressure to drop and try to pull out the river predator. Fishing, of course, is better at night or just before dawn.

Many anglers make a common mistake and when they go fishing, they start only from a certain moment. In fact, the behavior of fish depends on many different factors, and atmospheric pressure is only one of them. It must be remembered that clear or cloudy weather affects river inhabitants much more than pressure drops. In addition, it is necessary to take into account in which reservoir fishing is carried out. If the lake is located near a settlement, the probability of catching fish there is low, since the fish will be full and are unlikely to want to rise to the surface in adverse weather conditions.


In conclusion, the best barometric pressure for fishing can vary depending on the species of fish you are targeting and the location you are fishing.

Moderate barometric pressure is generally considered to be the best for fishing as it is more likely to produce active fish and more feeding opportunities. High-pressure systems are often associated with clear skies and calm winds and can make fish less active and harder to catch, while low-pressure systems are often associated with clouds, rain, and wind and can make fish more active and feed aggressively.

It's worth noting that there are many other factors that can affect fish behavior, such as water temperature, moon phase, and weather conditions, so it's always a good idea to pay attention to other indicators, in addition to barometric pressure, when planning your fishing trips.

Understanding how to read a barometer and interpret the pressure changes can help you make smarter decisions about when to fish, where to fish and what to use for bait. With this knowledge and some practice, you can become a better angler and increase your chances of catching fish.