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Water temperature or air temperature: which are you reading?

A pleasant air temperature tells you about one part of the trip. Before using a number to describe the water, check which temperature the forecast actually provides.

By FishMeteo Published

Name the temperature before comparing it

Read the field label and unit first. In a FishMeteo public spot, air temperature and water temperature occupy separate columns. If the water-temperature field is missing, record it as unknown rather than copying the air temperature into it.

Why the water measurement matters

Water temperature affects aquatic life, and different species have preferred ranges. Warmer water also holds less dissolved oxygen. This does not establish one temperature that guarantees a catch for every fish.

Keep each observation comparable

Use the same spot, unit and type of reading when comparing trips. If you take a measurement yourself, write down where, when and how it was taken. Do not silently combine a forecast value and a measurement at another depth.

Turn the number into a useful question

Instead of asking whether one temperature is always good, record your target, method, fishing hours and result. Compare similar trips and note what else changed. A small personal sample is a starting point for observation, not proof of a cause.

Try it on your next trip

  1. Check whether the label says air or water temperature.
  2. Keep the unit, spot, time and measurement method with the number.
  3. Use FishMeteo’s fishing journal to compare similar trips, including quiet ones.

Put it into practice