What does Sol show for sunset?

A colour forecast from little colour to exceptional colour, with sunset time, viewing direction and the conditions behind the outlook.

How does Sol assess sunset conditions?

Sol checks forecast cloud overhead and at 120, 250 and 400 km along the sunset bearing to estimate whether sunlight can reach cloud near you.

What if the forecast is unavailable?

Sol still calculates sunset time, viewing direction and golden hour. Colour forecasts are estimates, and conditions can change.

Sunset tomorrow in Philadelphia — will it be worth watching?

Plan the evening Explore golden hour

Baked 2026-09-15 02:14 UTC for 2026-09-15 in Philadelphia · refreshed nightly · live in your browser.

Explore golden hour and blue hour

How it knows

Canvas · cloud overhead1%

Light path · open100%

Air · visibility—

The callLittle colour

Golden hour6:34 – 7:26 PM

Blue hour7:26 – 7:37 PM

Three forecast samples along the true sunset bearing, at 120, 250 and 400 km.

What to expect tonight

The call weighs the cloud over you — some lights a sunset, none or all does not — against the cloud along the light's path from the west, where low cloud far out blocks it. One of four words: tendencies, not promises.

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Make time for the light. Sol for iPhone is coming soon.

Sol for iPhone · Coming soon

A calm instrument for natural light Methods & sources For assistants

Little colour tomorrow in Philadelphia.

What to expect tonight