How to Keep a Fishing Diary That Helps You Catch More
By Alex Clayton · Updated 1 November 2026
You have had the day. Fish after fish, never repeated since, and no record of what the wind, the pressure or the water was doing. A fishing log book fixes that, and a fishing diary only works if it is quick enough to fill in every time.
Eight fields filled in every session beat a detailed fishing journal abandoned by June. Below are six steps, a free template to copy, and the one case where UK law requires a catch record. For the basics, see the rest of our fishing guides.
Step 1: Choose a Format You Will Actually Carry
Pick the format around how you fish, not around features. The best fishing log is the one in your bag when the float goes under.
| Format | Good for | Watch out for |
|---|---|---|
| Paper log book | Cheap, no battery, still works when your phone dies | Hard to search once you have a few seasons in it |
| Phone notes or spreadsheet | Searchable, quick to sort by month or venue | Battery, signal and wet fingers on the bank |
| Catch log app | Records time and location fast | Check what it stores and who can see your marks |
A hybrid covers both weaknesses: a pocket notebook on the bank, typed into a spreadsheet at home. You get paper’s reliability and digital search for a few minutes’ typing after each trip.
If you fish short evening sessions, start with a pocket notebook and a pencil, which writes on damp paper when a pen will not. If your phone already goes everywhere with you, use a spreadsheet so you can sort entries later.
By now you should have one format chosen and a home for it in the tackle bag.
Step 2: Set Up a Minimum Log With the Eight Fields That Matter
The 30-field log is a familiar failure. It lasts three sessions, then the book sits in the car untouched. The fix is a minimum log short enough to fill in every time.
Copy this fishing diary template into a notebook, print it, or use the field names as spreadsheet columns.
| Field | What to write |
|---|---|
| 1. Date and times | Arrival, leaving, and the time of each bite |
| 2. Venue and swim | Water name plus swim or peg number |
| 3. Weather | Sky, air temperature if known, wind strength and direction |
| 4. Pressure | The reading and whether it is rising, falling or steady |
| 5. Water | Level, colour, temperature or tide (see Step 3) |
| 6. Method | Rig, hook size, bait or lure |
| 7. Catches | Species, weight and time, e.g. bream 4lb 8oz (2kg) at 19:40 |
| 8. Notes | One line: what you would change next time |
Record weights in lb and oz, the UK convention, and add kg in brackets if you share entries with anglers abroad.
Keen loggers can bolt on a “full log” when time allows:
- Moon phase
- What other anglers caught, and where
- Line breaking strain and hooklength diameter
- How much feed went in, and when
Treat those as extras. The eight-field catch log is the part of your fishing log book you fill in every time, blank or bumper day.
By now your template should be set up in the format you chose in Step 1. Eight fields, every session, no exceptions.
Step 3: Add the Conditions for Your Water Type
The same weather can bring a good day on a lake and a wasted trip on a river. Each type of water has one or two conditions that drive the fishing, and your log should capture those.
| Water type | Log these | Why it helps |
|---|---|---|
| River | Level, rising or falling, colour | Shows how fish respond to floods, fining-down water and low summer flows |
| Stillwater | Water temperature (if you carry a thermometer), colour, weed growth, wind direction relative to your bank | Ties feeding spells to warming water and wind-blown margins |
| Sea and estuary | Tide state, flooding or ebbing, springs or neaps, swell, clarity | Links catches to the stage of tide rather than the clock |
For pressure, a common rule of thumb is to note the trend over the previous day, not a single number, because a steady rise and a sharp fall can pass through the same reading. Our guide to air pressure and fishing covers what the trend may mean, and reading a fishing weather forecast shows where to find the figures.
On Windermere, fishing for pike, perch and bream, I’ve found wind direction and water colour among the most useful notes to look back on.
By now your template should have two or three water-specific fields. On a river, never skip the level. On a stillwater, never skip the wind.
Step 4: Log on the Bank, Reflect at Home and Record Every Blank
A blank is often the most useful page in the diary. It tells you which conditions not to repeat, and you lose that if you only write up the good days.
Split the job in two:
- On the bank: write facts as they happen. Note conditions on arrival, the time of every bite, and any change in wind, light or water.
- At home: add one line of reflection while the session is fresh. “Fish came after the wind dropped” is enough.
Blanks get the same eight fields. A blank with full conditions is data. A missing page tells you nothing.
When you do catch, keep the fish out of the water no longer than needed. As general good practice, keep your hands wet and the unhooking mat damp, weigh the fish in a wet sling, and return it quickly. Take photos low over the mat, not standing over hard ground.
Many clubs and syndicates ask members not to name venues or swims, so keep the precise detail in your private log and crop identifiable backgrounds from photos you post. Check your club rules if you are unsure.
By now every session, good or blank, should get an entry. If you only change one habit, log your blanks.
Step 5: Review Your Log and Turn It Into Three Rules
A fishing log book only helps you catch more when you read it back. A diary that is filled in and never reread changes nothing.
Flick through once a month. Once you have roughly 20 to 30 sessions on one water, do a proper review. That number is a rule of thumb, not a proven threshold.
Go through one variable at a time:
- Wind direction
- Pressure trend
- Time of day
- Water level, colour or tide
- Bait and method
For each one, compare your productive sessions against your blanks. Look for what recurs across several trips, and ignore the single big fish that turned up once in odd conditions. A pattern built on two or three entries is a guess.
Then write three plain rules at the front of the diary. For example:
- “If the river is rising and coloured, fish the slacks.”
- “If the wind has swung onto the far bank, move with it.”
- “If pressure has been falling all day, fish the last two hours.”
These are illustrations. Yours should come from your own entries. Test them next season and rewrite any that do not hold.
If the log keeps pointing at the same problem, our guide on why you’re not catching fish can help diagnose it. Pair the diary with good watercraft, because reading the water explains why a swim works.
By now you should have a review date in the diary and know what it should produce: three rules, written down.
Step 6: Check Whether You Must Submit a Catch Return
For the 2024 season, the Environment Agency received 13,845 salmon and sea trout catch returns against 21,927 licences, a return rate of 63.1% (GOV.UK fisheries statistics).
That return is not optional. In England and Wales, salmon and sea trout rod licence holders must submit a catch return by 1 January at the end of the season, even if they caught nothing. In Northern Ireland, DAERA game rod licence holders must make catch returns for salmon and sea trout, again including nil catches (nidirect).
You need a rod licence in England and Wales from age 13, juniors aged 13 to 16 get one free, and fishing without one can mean a fine of up to £2,500 (GOV.UK).
The GOV.UK licence page lists no equivalent requirement for coarse anglers. A coarse diary is for your own benefit, though some clubs and fisheries ask for catch records, so check their rules.
Salmon and sea trout anglers should submit through GOV.UK or the Environment Agency (nidirect in Northern Ireland) and check current guidance each season. Your diary already holds the data.
Frequently asked questions
What should I write in a fishing log book?
Write the eight core fields every session: date and times, venue and swim, weather, pressure, water conditions, method and bait, catches, and a one-line note on what you would change. Fill them in on blank days too, because blanks show which conditions to avoid. See Step 2 above for the full template, and Step 3 for the extra conditions worth adding on rivers, stillwaters and the sea.
Is a paper fishing diary better than an app?
Neither is better in itself. The one you fill in every session wins. Paper never runs out of battery and works in the rain with a pencil, while a phone app or spreadsheet is far easier to search and sort when you review a season. A notebook on the bank, typed up at home, gives you both.
Do I have to record my catches by law in the UK?
Only in specific cases. In England and Wales, salmon and sea trout rod licence holders must submit a catch return by 1 January, including nil returns, and Northern Ireland game licence holders have a similar duty. The GOV.UK licence page lists no equivalent duty for coarse anglers, but clubs and fisheries may ask for records. Check GOV.UK and the Environment Agency for current guidance.