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The bite calendar shows which days fish are more active. The days ahead are computed from the actual weather forecast; further into the month, from the moon phase and the species' season. You see the good days, the moon phase and the best hours — free, for your own region and water.
Open the bite calendar →While a weather forecast exists, the bite is computed from temperature, wind, pressure and rain — the same factors as the hourly forecast.
Activity runs higher around the new and full moon. The calendar reads the moon phase for every day and marks the solunar peaks.
Every fish has its own year: the autumn feed of pike, winter burbot, midsummer carp. Seasonal activity is computed for the species and region you picked.
For days with a forecast you see the weather by day and by night — temperature, wind and pressure — plus the best hourly window.
The solunar idea is simple: the moon moves water, and the daily rhythm of feeding shifts with the tidal one. Hence the habit of watching the new and full moon — the rhythm is most pronounced then, and flattest at the quarters in between.
Here the moon phase is one factor in the calculation, not a forecast of its own. Its weight is not constant, either. On the near days, while a weather forecast exists, stronger things override it: a pressure swing, a sudden wind shift, a temperature jump. A full moon under falling pressure will not save the day, and the calendar will say so. Further into the month there is simply no weather left — the moon and the season are all that remain, which is why the lunar rhythm reads more clearly in the far half of the calendar than in the near one.
The practical use: the moon is good for deciding which weekend to keep in mind three weeks out. Once the date is a week away, look at the weather instead — by then the calendar has recomputed that day itself, and the rating may have moved.
If you want the reference with no weather at all, the calendar has a «Moon only» mode: a pure lunar-and-seasonal picture for the whole month.
«A good month for fishing» has no answer until the fish is named. The same day scores differently for different species — that is not a glitch in the calendar, it is the point of it:
The second switch is the water type, and it is not cosmetic. A river warms and cools faster than still water and answers rain more sharply, so its seasonal transitions are shifted; a lake is slower — late to warm in spring, holding heat longer in autumn. The same week on a river and on a lake can therefore look different.
With no species picked, the calendar shows a combined picture across the most common fish of your region — useful for sizing up a weekend, but for a specific fish it is better to say which one.
You do not have to combine moon phase, season and weather yourself — the calendar does it and shows which days are worth planning a trip around and which ones will most likely be slow. For the near days that is a weather-driven forecast; a month out it is a dependable lunar-and-seasonal reference for your region and your fish.
Where the seasonal curves come from and how a day is scored is set out in the description of the bite forecast model.
The calendar is computed for a specific fish in a specific place. Below are the ones we hold the most data on: the species' seasonal curve and anglers' catches in that region.
It is a month-long table of fish activity: every day carries a score for how likely a good bite is. The colour of a cell shows the strength, and clicking it opens the day's detail — weather, moon phase, season and the best hours.
It is a hybrid. The near days, within the weather-forecast horizon, are computed from real weather — temperature, wind, pressure and rain, like the hourly bite forecast. Days further into the month come from the moon phase (solunar activity) and the season of that particular species.
The deeper the colour of a cell, the higher the expected activity. Grey days are the ones with no weather forecast yet. The moon icon gives the phase, and clicking a day opens a card with the weather by day and night, the species' season and the best window.
«With weather» is the hybrid: near days from real weather, far days from moon and season. «Moon only» shows a pure lunar-and-seasonal reference for the whole month, ignoring weather. The first is more accurate for the days ahead; the second is easier for planning a month out.
Yes. You pick the species in the calendar and the seasonal activity is computed for it: bass peaks in spring and autumn, burbot in winter, carp in the warm months. The water type — river or lake — switches separately.
Weather cannot be predicted a month out, so the far days are a lunar-and-seasonal reference rather than a forecast. The closer the day, the sharper the score: two weeks out, real weather is already in the calculation.
The moon phase is one factor in the calculation, not a prediction on its own. On the near days the weather overrides it: a pressure swing or a sudden wind shift moves the score more than a full moon does. Further out there is no weather yet, and the moon and season are what remain — which is why the lunar rhythm reads more clearly in the far half. Expecting one phase to say «biting / not biting» is asking too much of a correction term.
Because the seasonal curve is computed per species. Bass has two peaks — spring and the autumn feed — and goes sluggish in midsummer heat. Carp is the opposite: it wakes as the water warms and nearly stops before the cold. Burbot peaks in winter, when most others are passive. The same day of the month therefore scores differently for different fish — that is the reason the species picker exists.
By how fast the water changes. A river warms and cools quicker than still water and reacts to rain more strongly: its seasonal transitions are shifted and sharper. A lake is slower — late to warm in spring, holding heat longer in autumn. That is why water type switches separately from species, and the same week can look different on each.
Open the bite forecast for your waterbody right now.
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