Solunar Tables Victoria 2026 -- Do They Actually Work?

If you have looked up fishing times online, you have seen solunar tables. They promise to tell you exactly when fish will be feeding based on the position of the moon. Every fishing app, every tide chart website, every magazine runs them. They have been around for a century.

But do they actually work? The honest answer is: partly. Solunar theory captures one real signal -- the moon’s effect on tides -- and wraps it in a lot of unproven specificity. Here is what the science says, what it does not say, and what Victorian anglers should actually focus on.

Solunar times, explained

Solunar times are the daily major and minor windows a table prints. Major windows sit on lunar transit (moon overhead or underfoot). Minor windows sit on moonrise and moonset. The moon’s pull on tides is real. The claim that those exact clock times predict the bite is not. Use moon phase through tide. Treat transit windows as a last tiebreaker. For the tide mechanism itself, read the Victorian tides guide.

Where Solunar Tables Come From

John Alden Knight developed solunar theory in 1926. He compiled a list of 33 factors that experienced fishermen and hunters considered important for predicting animal activity. After testing them against his own records, he concluded that the moon’s position relative to the observer was the most significant factor. He published the first solunar tables shortly after.

The theory identifies four daily feeding periods. Two “major” periods of roughly two hours occur when the moon is directly overhead (lunar transit) or directly underfoot (lunar opposition). Two shorter “minor” periods of about one hour occur at moonrise and moonset. Knight’s claim was that fish and wildlife would be most active during these windows, regardless of other conditions.

The idea gained enormous popularity. A century later, solunar tables are embedded in virtually every fishing forecast service. But popularity is not evidence.

What the Science Supports

The moon genuinely affects fishing -- but not in the way solunar tables claim. The mechanism that works is simple: the moon drives tides, and tides affect fishing.

New and full moons produce spring tides with stronger currents and greater water exchange. Moving water moves food. This is well-established fisheries science and is the basis of our fishing tides guide for Victoria.

Several peer-reviewed studies support the moon phase connection. Lowry et al. (2007) found correlations between lunar phase and catch rates in commercial fisheries. Cabanellas-Reboredo et al. (2012) documented changes in cuttlefish activity patterns across the lunar cycle. The common thread is that these studies link outcomes to the broad phase of the moon (new, full, quarter), not to specific transit times.

There is also Frank Brown’s well-known 1954 laboratory study, which demonstrated that oysters adjusted their shell-opening rhythm to match the local lunar transit even when transported to a landlocked laboratory far from the coast. This is genuine evidence (Brown, 1954) that organisms can detect lunar position -- but it is a large step from “oysters open shells on a lunar rhythm” to “snapper will bite at 2:47 pm because the moon is overhead.”

What the Science Does Not Support

The specific claim of solunar tables -- that the exact times of lunar transit and opposition predict peak feeding -- has not held up to rigorous testing.

Kauwe et al. (2023), published in Discover Applied Sciences, directly tested whether solunar-predicted feeding windows correlated with actual fish catch rates. The study analysed catch data against solunar major and minor periods and found no statistically significant relationship. Fish were not more likely to be caught during solunar windows than outside them.

This is not a minor quibble with methodology. It is a direct test of the core solunar claim, and it failed.

Professor Jeremy Allen’s bass fishing data (cited in recreational fishing literature) similarly found no reliable correlation between solunar predictions and bass catch rates when other environmental variables were controlled for.

The problem is that solunar theory conflates two things: the moon’s real effect on tides (which affects fishing through water movement) with a claimed direct gravitational effect on fish feeding behaviour (which has not been demonstrated). When you strip away the tidal component, the remaining solunar signal -- specific transit times predicting specific feeding windows -- disappears in the data.

Why They Feel Like They Work

Despite the lack of evidence for transit-time predictions, many anglers swear by solunar tables. There are several reasons for this:

• Confirmation bias: You remember the sessions where the bite turned on during a solunar period and forget the many sessions where nothing happened. One dramatic hit during a “major period” creates a stronger memory than ten blank solunar windows.
• Tidal correlation: In many locations, solunar major periods roughly coincide with tide changes. If you are catching fish during a solunar window, the tide change -- not the moon’s position -- is likely the mechanism. The solunar table gets credit for what the tide is doing.
• Better planning leads to better fishing: Anglers who use solunar tables tend to plan their sessions more carefully, fish at specific times, and arrive prepared. The act of planning -- rather than the solunar prediction itself -- probably improves their results compared to anglers who fish randomly.

What Matters More Than the Moon

Every peer-reviewed study that has examined multiple fishing variables has found the same hierarchy. The factors with the strongest, most consistent effect on fish catch rates are:

• Water temperature: Controls fish metabolism. Too cold and fish are lethargic. Too warm and dissolved oxygen drops. Each species has an optimal range. For Port Phillip Bay snapper, that range is 15 to 19 degrees Celsius.
• Tide state: Moving water moves food. Tide changes produce fish. This is the one thing solunar tables get right -- indirectly, through the moon’s effect on tidal amplitude. See our tides guide for species-specific tide preferences.
• Wind speed and direction: Wind creates surface current, affects water clarity, and pushes baitfish. In Port Phillip Bay, westerly winds improve snapper fishing on the western shore; easterly winds kill it.
• Barometric pressure: Falling pressure (approaching weather systems) is widely documented as a feeding trigger. Fish seem to feed more aggressively before a weather change.

These four factors have clear biological mechanisms. Temperature controls metabolism. Tides deliver food. Wind moves water and bait. Pressure changes trigger feeding responses in the swim bladder. You can explain why they work, and the data confirms that they do.

Solunar transit timing has neither a clear mechanism (beyond tides, which are already accounted for) nor consistent data support. It is the weakest signal in a noisy system.

How Get A Nibble Handles Solunar

In Nibble the moon shows up through the tide and the light. The tide readings carry the spring and neap range, and the moon phase sits beside sunrise, sunset and cloud cover. It is one reading among many, alongside water temperature, wind, pressure and swell.

Our approach follows the evidence. We lean on the conditions with strong peer-reviewed support, such as water temperature, tides and wind, and we treat traditional rules with caution.

The result is a forecast built on the conditions the research supports, including the tide the moon sets, without the unproven precision of solunar feeding windows.

The Practical Take

Solunar tables are not useless. They are just over-specified. Here is a pragmatic approach for Victorian anglers:

• Moon phase: worth considering. New and full moons produce stronger tides. In open water systems like Western Port, fish the big tides. In Port Phillip Bay, many land-based snapper anglers prefer neap tides because a bait sits more easily. Check the tide as well as the moon. The tide reading shows the spring and neap range for each day.
• Solunar transit times: ignore as a primary decision factor. There is no reliable evidence that the moon being overhead at 2:47 pm means fish will bite at 2:47 pm. If you happen to be fishing during a solunar period and conditions are also good, great -- but the conditions are doing the work.
• As a tiebreaker: acceptable. If you have two days with identical wind, tide, and temperature forecasts, and one aligns with a solunar major period -- sure, fish that day. But never choose a solunar window over better conditions on a non-solunar day.

The moon sets the tide. Focus on the conditions you can measure and verify.