SunlightSunlight Calculator
Guides
Practical ways to model your surroundings, compare dates and check the result outdoors.
How to Measure Sunlight in Your Garden
Measure one exact spot on a clear day, record when direct sun reaches it, then use a simple shadow model to compare other dates. This guide shows both methods.
Read guideCompare two places for a raised bed
Use the same surroundings and date to compare candidate points without turning sunlight estimates into plant advice.
Read guideExplore the shadow of a fence or shed
Understand how height, orientation and distance affect a simple obstacle before changing your garden layout.
Read guideCompare sunlight across the year
Keep your garden model fixed and see how calendar dates, hemispheres and local clock changes affect the result.
Read guideModel trees without hiding the uncertainty
Use a solid crown as a deliberate approximation, then test how missing or uncertain obstacles change your result.
Read guideCheck your model outdoors and export a useful result
Make a repeatable observation, correct the model, and keep the date, time zone and assumptions with every export.
Read guideA clear-sky estimate for the model you draw. Clouds, terrain, leaf transparency and missing obstacles are not included.
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