Pink and violet clouds illuminated above snow-dusted mountain peaks and a green meadow at twilight.
Sunrise and sunset forecast

Will it burn, or go gray?

Sky Sync scores every sunrise and every sunset at your spots, up to seven days out, and tells you why.

Free forever · No credit card
Rocky Mountain National Park · Twilight burn
We publish our track record, misses included

When we said stay home, we were right 92% of the time. When we said go, the sky delivered 74% of the time. Checked against NOAA observations across 66,000+ sunrise and sunset forecasts in the last 90 days.

What it checks

Can the light get under the clouds?

Sky Sync looks up to 280 miles toward the sun. If the horizon is sealed, there is no color, however good the sky overhead looks.

Is there cloud to catch the color?

High and mid cloud overhead is the screen the color lands on. No screen, no burn.

Is a ridge in the way?

The score knows the terrain between you and the sun.

What is the sky doing behind you?

Backglow scores the opposite sky, where clouds behind you catch pink light alongside alpenglow and the Belt of Venus.

Are you above the fog or in it?

Sky Sync compares the top of the fog with the elevation of your overlook.

Did a storm just clear?

Post-Storm Clearing flags the short window after rain when the light can be the best of the season.

Smoke, dust or haze?

Each does something different to color. Sky Sync tells them apart.

How sure is the forecast?

Premium shows a floor, an expected score and a ceiling, so you can tell a lock from a gamble.

What you see

The week at a glance

93·High-Canopy Burner · Worth 90m+ Drive

Every sunrise and sunset at your saved spots is scored and ranked across the week.

Sky Sync sunrise and sunset weekly outlook showing Sync Scores.

Sync Insights and physical factors

88·Open 280 mi horizon · Strong Backglow

See the exact cloud layers, horizon gap distance, terrain clearance and Backglow window behind the score.

Sky Sync sunrise and sunset detail view showing physical sub-scores.

Free includes a 3-day outlook. Premium shows the full week. Compare plans →

Check tonight before you commit the drive.

Free forever · No credit card