Savannah Stargazing & Astronomy Report
Light pollution and stargazing locations near Savannah
- City
- Savannah
- Country
- United States
- Latitude
- 32.0835
- Longitude
- -81.0998
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 17.92
- Bortle class
- Class 9 (Class 9)
- Darkness Quotient
- 22%
- Dataset
- March 2026
Inner city sky
Savannah: The Practical Verdict
Savannah is a historic coastal city in south-eastern Georgia, known for its waterfront setting, planned squares and distinctive Lowcountry character.
With a Darkness Quotient of 22%, Savannah sits in the High Light Pollution tier — brighter than many smaller inland towns, though not quite as overwhelmed as the most intensely lit global city centres.
For practical observing from within the city, the most reliable targets are the Moon, bright planets, double stars and the brightest open clusters. A few showpiece deep-sky objects can be attempted with care, but faint nebulae and galaxies are largely lost in the urban glow.
Meaningfully darker skies are available, but you do need to leave the city behind. The nearest reasonable step up is about 40 kilometres to the south at 38 km S, where conditions reach Bortle 4.
The map shows Savannah as part of a broader patchwork of coastal light, with numerous bright pink and red urban nodes scattered across the region rather than one isolated pool of illumination. Around the city, these brighter pockets are linked by yellow and green halos, creating a generally well-lit landscape across much of the inland side of the map.
The most obvious darker region lies offshore to the east, where the colours fall away through blue into very dark grey and black over open water. That sharp transition suggests the sea quickly removes many nearby light sources, while landward directions remain more affected by settlements spread across the wider coastal plain.
Compared with its surroundings, Savannah appears embedded in a busy luminous corridor rather than standing alone. The darker opportunities on land seem more selective and directional, whereas the cleanest-looking darkness on the map develops most strongly away from the coast-facing glow and out over the Atlantic.
Overhead sky impression
Looking straight up from Savannah, the zenith remains heavily affected by city light. With a zenith reading of 17.92 SQM, the overhead sky is bright enough that the background rarely looks truly dark, even on otherwise clear nights.
Under this kind of sky, familiar constellations still show up, but they appear thinned out, with many of their fainter stars missing. The brightest stars and asterisms remain easy to pick out, while subtler Milky Way structure and weak naked-eye detail are washed away by the glow.
For a casual skywatcher, the impression is of a bright urban canopy rather than a rich star field. For telescope users, that means high-contrast targets fare best, while low-surface-brightness objects struggle badly against the luminous background.
north - marginal
About 15 kilometres north of the city, the sky is still only marginal, at roughly Bortle 6. It improves well with distance, reaching genuinely dark conditions at about 100 kilometres north, with Bortle 3 skies along that line.
north-north-east - marginal
About 15 kilometres north-north-east, conditions are marginal at around Bortle 6. There is a worthwhile improvement farther out, with good skies appearing around 50 kilometres away, but genuinely dark conditions do not arrive within the sampled range in this direction.
north-east - fair
Around 15 kilometres to the north-east, the sky is fair at about Bortle 5, already a noticeable improvement over the city centre. It continues to improve farther out, with the best sampled conditions reaching Bortle 4 only at much greater distance rather than close by.
east-north-east - fair
At about 15 kilometres east-north-east, the sky is fair, around Bortle 5. This is one of the stronger directions from Savannah, with genuinely dark conditions reached at about 100 kilometres and even darker skies beyond that.
east - fair
Around 15 kilometres east of Savannah, the sky is fair at roughly Bortle 5. It improves quickly in this direction, with genuinely dark conditions appearing at about 50 kilometres and becoming darker still farther out.
east-south-east - marginal
At roughly 15 kilometres east-south-east, the sky is still marginal at about Bortle 6. A much better step up arrives by about 50 kilometres, where this direction reaches genuinely dark Bortle 3 conditions.
south-east - marginal
Around 15 kilometres south-east, conditions are marginal at about Bortle 6. This direction improves strongly with distance, reaching genuinely dark skies at about 50 kilometres and becoming excellent farther out.
south-south-east - marginal
At about 15 kilometres south-south-east, the sky remains marginal, near Bortle 6. The outlook improves markedly farther on, with genuinely dark conditions reached at about 50 kilometres in this direction.
south - marginal
About 15 kilometres south of the city, the sky is still marginal at around Bortle 6. It becomes much better with a longer run, reaching genuinely dark Bortle 3 conditions at about 50 kilometres.
south-south-west - poor
Around 15 kilometres south-south-west, the sky is poor at roughly Bortle 7. There is some improvement farther out, including good conditions around 50 kilometres away, but genuinely dark skies are not reached within the sampled radius in this direction.
south-west - poor
At about 15 kilometres south-west, the sky is poor, around Bortle 7. Conditions improve gradually, but you need to go much farther than a quick drive before genuinely dark Bortle 3 skies appear, at about 100 kilometres.
west-south-west - poor
About 15 kilometres west-south-west, the sky is poor at around Bortle 7. This direction does improve, but genuinely dark conditions do not arrive until about 100 kilometres from the city.
west - poor
At roughly 15 kilometres west of Savannah, the sky is still poor, near Bortle 8. There is a useful improvement farther out, with good skies by around 50 kilometres, but genuinely dark conditions only arrive at about 200 kilometres.
west-north-west - poor
Around 15 kilometres west-north-west, the sky remains poor at about Bortle 8. It improves to good territory farther out, though genuinely dark skies are only reached at about 200 kilometres in this direction.
north-west - poor
At about 15 kilometres north-west, the sky is poor, around Bortle 8. This route gets better with distance, with good skies by roughly 50 kilometres and genuinely dark conditions at about 100 kilometres.
north-north-west - poor
About 15 kilometres north-north-west, conditions are poor at around Bortle 7. There is a solid improvement farther on, with good skies near 50 kilometres and genuinely dark conditions by about 100 kilometres.
zenith - poor
Looking straight up from central Savannah, the zenith is poor, corresponding to Bortle 9. The brightest stars and familiar constellation outlines remain visible, but the background sky is bright and washed out, so many fainter stars and almost all subtle Milky Way detail disappear.
-
136 km NW
- Direction
- NW
- Distance (km)
- 135.7
- SQM
- 21.17
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
-
102 km SSW
- Direction
- SSW
- Distance (km)
- 101.7
- SQM
- 21.03
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
-
38 km S
- Direction
- S
- Distance (km)
- 37.7
- SQM
- 20.95
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
Historical Light Pollution Trends
Savannah’s measured sky brightness has been remarkably steady across the available record. The earliest and latest readings are both 17.92 SQM, with a long-term average of 18.03 SQM.
Across 75 datasets, the brightest reading in the series is 18.34 SQM and the lowest is 17.81 SQM, so the overall spread is fairly small. The fitted trend is slightly downward at -0.007 SQM per year, which points to a very gentle worsening over time rather than any dramatic shift.
In practical terms, that suggests city-centre observers in Savannah should expect conditions that have stayed broadly consistent for years: persistently bright, with only modest fluctuations from one period to another.