Moon Phase and Fishing Reports: I Analysed Over 20,550 Victorian Reports, Here's What They Suggest

Correlation does not equal causation

This matters whenever we talk about data, including moon phases and fishing reports, because it is easy to see a pattern and think it is solid proof. Just because something happens once does not mean it will always happen the same way, or even in the same way, in another location.

Anglers have argued about moon phases for as long as I can remember. Some say the new moon is best, while others like the full moon. Some Murray Cod or even Gummy shark fishers talk about the days before a full moon. Many experienced anglers also point out that things like weather, river height, water clarity, tides, pressure, season, bait, location, and simply putting in the effort matter just as much, if not more.

So, this analysis does not try to prove that moon phases make fish bite.

Instead, this analysis looks at a simpler and more careful question:

When Getfished fishing reports are grouped by the moon phases present during their report week, what broad patterns show up?

What was analysed

This analysis used 20,550 fishing reports in the Getfished database as of 9th of July 2026.

The report dates covered the period from August 2016 to 31 July 2026, across 523 separate report publication dates. The date range I exported from the database was 2016 to 2026, with the earliest report date in this dataset being mid 2016.

The important limitation is that these are report dates, not exact catch dates.

Most reports talk about the week before they were written. Those reports that claim to be the same day are largely from social media, which is impossible to verify accurately. Because of this, I cannot say for sure that a certain fish was caught during a specific moon phase. Instead, each report was spread across the moon phases that happened in the seven days before the report date.

For example, if a report week had three days of waxing crescent, two days near the first quarter, and two days of waxing gibbous, that report was counted partly for each of those moon phases.

That is why the results below show weighted matches for report weeks, not the exact moon phase for each day a fish was caught.

The broad result

When I collapsed the eight moon phases into broader moon periods, the weighted report distribution was:

Looking at the numbers, most report-week matches happened during waxing moon periods. Waning moon periods came next. New moon and full moon periods were almost the same in the overall results.

That is interesting, but we should not read too much into it.

This does not mean fish were caught more often because of the waxing moon. It just means that, in this database, when reports were spread over their seven-day windows, the waxing moon period had the biggest share.

The eight-phase view

Looking at all eight moon phases gives a bit more detail:

First Quarter had the highest share in this analysis, and Waning Crescent had the lowest.

Again, we need to be careful here. The difference between the highest and lowest shares is not enough to say moon phase is a sure thing for fishing. It is just a general pattern in the data, not a rule.

Was the pattern consistent every year?

Not completely.

The top moon period changed from year to year. Waxing moon periods had the highest share in six out of ten years, while waning moon periods led in four.

That matters because a strong claim about moon phases would need to show a clearer and more consistent pattern than this.

The yearly results suggest there could be a general pattern in the reports, but it is not consistent enough to say that “the waxing moon is always better” or “the full moon is best.” Certainly the “new moon” which forms a central part of Solunar theory is not supported by the dataset, on the surface.

Making those kinds of claims would be going further than what the data really shows.

A major limitation: report mix

There is another key issue with using all-species fishing report data.

Not every species appears with equal frequency in the Getfished database. Some species make up a much larger share of the reports than others.

The most reported species in this dataset were:

Murray Cod, Redfin, and Yellowbelly make up a large part of the dataset. This means that reports about freshwater and native fish can have a big effect on the all-species results.

This is important because different fisheries are not the same. A moon pattern found in Murray Cod reports might not apply to snapper. A pattern in squid reports might not fit trout. A pattern in freshwater reports might not tell you much about Port Phillip Bay or Western Port.

There is also the issue of repeated reporting. If a few regular contributors report on certain species or places, the results might partly reflect their habits, timing, favorite spots, and how often they report.

This does not make the data useless. It just means the all-species result should be seen as a general overview, not a final answer for every species.

What was not adjusted for

This analysis did not adjust for several important factors, including:

• weekends and normal days off;

• Victorian public holidays;

• Christmas and New Year holiday periods;

• Easter and school holidays;

• weather windows;

• wind, tides, river height or water clarity;

• angler effort;

• report-source behaviour;

• bait, lure, location or season effects.

These factors matter.

For example, if more people go fishing during holidays or when the weather is good, it can change how many reports are made. If those times happen to line up with certain moon phases in a year, it can affect the results even if the moon phase is not the reason.

That is why this article should be seen as an analysis of report patterns, not as proof that moon phases cause fishing success. Conversely, it doesn’t disprove solunar theory-based fishing either.

What the reports suggest

There could be something interesting here, especially if you look at each species by itself. Murray Cod, Yellowbelly, Snapper, Squid, King George Whiting, and Trout might each show a different pattern if analysed separately. I plan to look into these and share what I find here in the future.

But the overall all-species result does not prove that one moon phase makes fish bite more than another.

Practical meaning for anglers

Moon phase is worth considering, but it should not be the only thing you count on. It is better to use moon phase as just one of many planning tools. If a good moon period lines up with nice weather, good tides, manageable wind, seasonal fish movement, recent local reports, and a spot you know well, it can give you more confidence for your trip. But if the wind is bad, the water is dirty, the tide is off, the river is flooded, or the fish just are not around, the moon phase will not make a difference.

The reports suggest that moon phase is worth including in your planning, but they do not show it is a sure thing.

That is the most straightforward answer I can give, based on the data available right now.

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