HOURLY CACHED FORECAST

Stargazing forecast tonight in London

A server-rendered snapshot of the sky conditions around England, United Kingdom. This page is regenerated at most once per hour.

Data updated at 2026-08-06T07:32:40.823Z UTC source timestamp.

TONIGHT

London

100/100

Promising conditions for stargazing

◒MOON PHASELast Quarter

46% illuminated

☁CLOUD COVER2%

Lower is better

◐ASTRONOMICAL DUSK2026-08-06T22:19:57.760Z

UTC calculation

◉VISIBILITY20.0 km

Surface visibility

ATMOSPHERE, LAYER BY LAYER

Professional observing conditions

Forecast values, not guarantees. Compare the snapshot with local conditions before travelling.

◜LOW CLOUD1%

Near-surface layer

≈MID CLOUD0%

Middle atmosphere

⌒HIGH CLOUD0%

Thin cloud can spread skyglow

≋SMOKE / HAZE RISKLow

PM2.5 4.6 μg/m³ · AOD 0.09

◇DEW POINT8.7°C

Optics dew indicator

◎ASTRONOMICAL SEEING5/8 · Good

7Timer ASTRO model

☀SUNSET2026-08-06T20:40 (GMT+1)

Local timezone

◇HUMIDITY61%

Higher values may reduce transparency

The displayed server snapshot is cached for up to one hour.

Sources and accuracy note

This forecast combines public model data with local astronomical calculations. Missing upstream fields are shown honestly rather than estimated without support.