Science-First Rainbow Forecasting

Rainbow Prediction Built On Physics, Not Guesswork

Rainbow Tracker combines deterministic solar geometry with weather-driven probability scoring so you can act on the right viewing windows.

Hard Limit

Sun < 42°

Core Inputs

5 factors

Forecast Horizon

7 days

Prediction Workflow

Information hierarchy follows the research docs: first feasibility, then probability.

Sun must be between 0° and 42°. If not, rainbow probability is 0%.

Liquid precipitation is required. Broken cloud cover (about 20%-70%) gives the best contrast.

A weighted score ranks opportunities using solar elevation, rain intensity, cloud cover, wind, and temperature.

Updated forecast cards with clear thresholds and trend changes.

Antisolar compass tells you exactly where to look.

Model assumptions and weights are visible in-app.

Fast camera presets based on current light conditions.

Practical guides for forecasting and photography.

Oct 3, 2023

Explore the rich mythology and legends surrounding rainbows in Hawaiian culture.

Oct 2, 2023

Discover the best places in Hawaii to see rainbows.

Oct 1, 2023

Learn about the fascinating science behind the formation of rainbows.