SunlightSet the location
Choose a city as a starting point or enter your coordinates. Check the local time zone and date.
SUN & SHADE, MADE VISIBLE
See your garden’s sunlight in 3D.
Add the buildings, fences and trees around the spot you care about. Watch shadows move through the day, calculate direct-sun hours and compare seasons before you plant or rearrange your garden.
- Free to use
- No account
- Calculations stay in your browser
A clear-sky estimate for the model you draw. Clouds, terrain, leaf transparency and missing obstacles are not included.
A little planning. A brighter garden.
Your garden, in three steps
Build the surroundings in 3D
Add buildings, fences or solid tree crowns. Set their dimensions, move them in the 3D scene and place your observation point.
Follow the sunlight
Move through the day, read direct-sun intervals and compare four dates. Save or export the assumptions with the result.
Make space for better decisions
A place for the raised bed
Compare two possible positions before rearranging your garden.
A fence or a new shed
Change one height or position and see how the model responds.
A different time of year
Check dates across the year, including the lower winter sun.
Start with a guide
Explore all guides →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 guideA few things to know
Does choosing my city create my real garden?
No. A city sets representative coordinates and a time zone. Enter your own coordinates and manually add the obstacles around your observation point. No buildings or trees are automatically detected.
Is direct sunlight the same as daylight?
No. Daylight in this tool means the sun’s centre is above a flat horizon. Direct sunlight additionally requires a clear ray from your point to the sun through your model. Clouds and diffuse light are not calculated.
How precise are the results?
Durations use 5-minute samples. Heights, positions, simplified shapes and the time zone affect the result. Very brief or grazing exposure may be missed. Compare with outdoor observations before making changes.
Does my model leave my device?
Calculations and explicit local saves stay in your browser. Downloaded files and shared links contain the location and model: share them deliberately. Device location, if requested, uses the browser and operating system’s location services.