Valletta Stargazing & Astronomy Report

Light pollution and stargazing locations near Valletta

City
Valletta
Country
Malta
Latitude
35.8992
Longitude
14.5141

Key Sky Quality Metrics

SQM (mag/arcsec²)
18.34
Bortle class
Class 8 (Class 8)
Darkness Quotient
26%
Dataset
March 2026

City sky

Stargazing from Valletta

Valletta is Malta's compact fortified capital on the country's north-east coast, set within one of the most densely lit parts of the islands.

With a Darkness Quotient of 26%, Valletta sits in the High Light Pollution tier, brighter than many inland towns and closer to the heavily light-polluted end of the scale than to genuinely dark observing spots. From the city itself, the Moon, planets, bright double stars and the brightest star clusters still show well, but faint galaxies, most nebulae and the Milky Way are largely washed out by the skyglow overhead. You can still enjoy casual observing sessions, especially with binoculars or a small telescope, though deep-sky observing is quite limited unless you focus on the showpiece objects.

Darkness is not close at hand on Malta itself, and for a clear jump in sky quality you are looking beyond the islands. The nearest supplied Bortle 4 site is Mazzarino, roughly 155 kilometres to the west in Sicily, which gives a much darker sky than anything available within the first 100 kilometres around Valletta.

The map shows Valletta sitting inside a bright knot of light on the central-eastern side of the islands, with the strongest glow concentrated around the built-up coastal belt. That bright core spills outward into broad grey halos, so even where the immediate hotspot fades, the surrounding sky remains noticeably affected by urban lighting.

Away from the city, the darkest tones in the crop lie mainly over open sea, especially to the south, south-east and east, where the map quickly falls to much darker shades once land-based lighting drops away. Even so, the islands themselves remain peppered with smaller bright patches, showing how widespread settlement lighting is across Malta and nearby land to the north.

Compared with its surroundings, Valletta is very much on the brighter side of the local picture. There are modest improvements in several directions once you leave the urban core, but the map suggests no large, truly dark land area nearby, only progressively darker horizons over water and much darker territory farther afield.

What the all-sky view is like

Looking straight up from Valletta, the sky is bright enough that the background never becomes properly black on a moonless night. The zenith sits at Bortle 8, so the familiar constellations are still easy to trace, but the fainter linking stars are thinned out and broad diffuse features are hard to detect.

In a fisheye-style all-sky view, you would expect a strong general glow rather than a single isolated dome on one horizon. Brighter horizons are likely in the directions of the main built-up areas, while seaward views can look a little cleaner, but overhead contrast remains limited.

That means the sky still works for lunar observing, planets, bright asterisms and a handful of standout deep-sky objects, yet it is not a place where subtle Milky Way structure or faint naked-eye targets come easily.

north - good

Fifteen kilometres to the north, the sky improves to Bortle 4, which is a genuinely useful step up from Valletta itself. In this direction, truly dark sky appears within about 25 kilometres, so the northern outlook improves quickly once you are away from the city glow.

north-north-east - good

Fifteen kilometres out to the north-north-east, conditions reach Bortle 4, giving a much cleaner sky than in the city centre. By around 25 kilometres, this direction reaches genuinely dark territory in the sample, making it one of the faster routes to darker horizons.

north-east - good

At 15 kilometres to the north-east, the sampled sky is Bortle 4, good enough for a noticeable increase in contrast on bright deep-sky targets. Around 25 kilometres out, this direction reaches dark sky, and it keeps improving farther on.

east-north-east - good

Fifteen kilometres to the east-north-east gives Bortle 4 conditions, a solid improvement on Valletta's overhead sky. By about 25 kilometres, genuinely dark sky shows up in this direction, with even darker samples farther out over open water.

east - good

At 15 kilometres to the east, the sky is around Bortle 4, so this direction offers a clear improvement for visual observing. Dark sky appears by roughly 25 kilometres, and the samples continue to darken strongly farther east.

east-south-east - fair

Fifteen kilometres to the east-south-east, the sky is still around Bortle 5, so it is improved but not yet properly dark. By about 25 kilometres this direction reaches dark sky in the sample, and it becomes markedly better beyond that.

south-east - fair

At 15 kilometres to the south-east, conditions are about Bortle 5, better than central Valletta but still carrying a fair amount of glow. This direction does not reach genuinely dark sky until around 50 kilometres, so the improvement is slower than it is to the north or east.

south-south-east - fair

Fifteen kilometres out to the south-south-east, the sampled sky is Bortle 5, which helps with brighter deep-sky objects but still leaves the background bright. Dark sky arrives at around 50 kilometres in this direction.

south - fair

At 15 kilometres to the south, the sky improves to Bortle 5, so there is a useful gain over the city but not a dramatic one at first. You need to go roughly 50 kilometres before this direction reaches genuinely dark conditions.

south-south-west - fair

Fifteen kilometres to the south-south-west gives Bortle 5 conditions, meaning the sky is better but still noticeably light-polluted. Around 50 kilometres out, this direction reaches dark sky in the sample.

south-west - fair

At 15 kilometres to the south-west, the sky is about Bortle 5, which is an improvement for brighter clusters and nebulae but not for the faintest targets. Genuinely dark sky appears at roughly 50 kilometres in this direction.

west-south-west - fair

Fifteen kilometres to the west-south-west, the sky remains around Bortle 5, so the city glow still has a fair influence. By about 50 kilometres, this direction reaches dark sky and continues improving beyond that.

west - marginal

At 15 kilometres to the west, the sample is still Bortle 6, so the improvement is fairly modest at that distance. You need to push to around 50 kilometres before this direction reaches genuinely dark sky.

west-north-west - marginal

Fifteen kilometres to the west-north-west, the sky is around Bortle 6, which is only a moderate gain over Valletta. Darker conditions do arrive in this direction, but not until roughly 50 kilometres out.

north-west - fair

At 15 kilometres to the north-west, the sampled sky reaches Bortle 5, giving a noticeable but still limited improvement. This direction reaches genuinely dark sky at around 50 kilometres.

north-north-west - fair

Fifteen kilometres to the north-north-west brings the sky to about Bortle 5, so brighter deep-sky targets start to benefit. Around 50 kilometres out, this direction reaches genuinely dark sky in the sample.

zenith - poor

Looking straight up from Valletta, the zenith is Bortle 8, so the sky background is bright and many faint stars are lost. The main constellations still stand out, but the Milky Way is generally absent and delicate naked-eye detail is heavily suppressed.

This is an overhead sky best suited to the Moon, planets and the brightest star patterns rather than faint deep-sky sweeping.

For Valletta, darker skies require a significant journey rather than a short hop outside town. Within 100 kilometres there is no listed site that turns the city sky into a truly dark one, and the nearest supplied Bortle 4 location is Mazzarino, about 155 kilometres to the west in Sicily.

The local sky does improve once you get away from the brightest built-up areas, especially looking out over the sea, but the real change comes only when you leave Malta's broader light dome behind.

  • Within 200 km
    Place
    Mazzarino, Sicily
    Direction
    W
    Distance (km)
    156.1
    SQM
    20.86
    Bortle
    4
  • Within 500 km
    Place
    457 km S
    Direction
    S
    Distance (km)
    456.7
    SQM
    21.33
    Bortle
    3

How the sky has changed

Across the 83 datasets in this series, Valletta's night sky has shown a gentle long-term brightening. The SQM value has moved from 18.63 in the earliest record to 18.34 in the latest one, a change of 0.29 magnitudes per square arcsecond in the brighter direction.

The fitted trend, about -0.0158 SQM per year, points to a slow decline rather than a sudden shift. In practical terms, Valletta was already heavily light-polluted at the start of the record, and the data suggest that the city sky has become a little more washed out over time rather than dramatically different from year to year.

The full range, from 18.18 to 18.63, is fairly tight, which means the broad character of the sky has stayed consistent. Bright showpiece targets remain visible, but faint detail has not been moving in a favourable direction.

Valletta is best for bright, high-contrast targets. The Moon, planets, double stars and the brightest open clusters remain rewarding, and a telescope can still pick out a few showcase nebulae and globulars when transparency is good.

The trouble comes with low-contrast objects. Faint galaxies, diffuse nebulae, the Milky Way and the fuller richness of meteor showers all need a much darker sky than Valletta usually offers, so they are far better saved for an observing trip away from the city's glow.

  • Moon
  • planets
  • double stars
  • brightest open clusters
  • bright nebulae such as M42
  • brightest globular clusters
  • a few showpiece deep-sky objects with a telescope
  • Milky Way
  • faint galaxies
  • broadband nebulae
  • meteor showers

Can you see stars from Valletta?

Yes. You can easily see the brighter stars and the main constellation patterns from Valletta, but many of the fainter stars are lost in the bright sky background.

Can you see the Milky Way from Valletta?

Usually not in any satisfying way. With a Bortle class of 8 and SQM 18.34, the Milky Way is largely washed out from the city.

What Bortle class is Valletta?

Valletta is Bortle Class 8, which is a strongly light-polluted city sky.

What is the SQM in Valletta?

The measured sky brightness here is SQM 18.34. That is bright enough to limit faint deep-sky observing quite severely.

Where are the nearest dark skies to Valletta?

The nearest supplied darker site is Mazzarino in Sicily, about 155 kilometres to the west, where the sky reaches Bortle 4 and SQM 20.86. Within the first 100 kilometres around Valletta, no listed site provides that same level of darkness.

Is Valletta good for astrophotography?

It can work for the Moon, planets and bright conjunctions, and you can also photograph a few bright deep-sky showpieces with filters and careful processing. It is much less suitable for wide-field Milky Way photography or faint nebula work because the background sky is so bright.

How far do you need to drive from Valletta for darker skies?

For a real improvement, you are looking well beyond the immediate area rather than a short drive from the centre. The nearest supplied Bortle 4 site is about 155 kilometres away at Mazzarino in Sicily.