For K-12 Students · Psychrometrics
Psychrometrics for a fog bank
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a fog bank live below — adjust the inputs and watch it respond, right in your browser.
Humidity & PsychrometricsLive
dew point, wet bulb, mixing ratio
25°
dry bulb
18°
wet bulb
14°
dew point
These three temperatures fully describe the moisture in the air.
Controls
Presets
Relative humidity alone is misleading. The dew point — the temperature at which air saturates — is the honest measure of how muggy it feels and where clouds or condensation form. The wet-bulb temperature, always between dew point and air temperature, is what evaporative cooling can reach and a key limit for human survivability in extreme heat.
Data Inspector
Dew point13.9 °C
Wet-bulb temp18.0 °C
Mixing ratio9.9 g/kg
Comfortpleasant
Governing equation
Reading this result: Dew point 13.9 °C sits in the pleasant range; the wet bulb (18.0 °C) marks the coolest that evaporation can reach here.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Psychrometrics for a fog bank" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.