Allianoi

Archaeological Site Ancient Roman spa city ruins in İzmir Province

An archaeological site in İzmir Province preserving an ancient spa complex; attracts visitors interested in Roman-period ruins and active excavations near Bergama.

Main image

Allianoi is an ancient Roman-era sanctuary and thermal settlement near the modern town of Bergama in Izmir Province, western Turkey. The site is notable for its large public baths built around natural thermal springs.

Excavations in the early 2000s uncovered the bath complex, streets and building foundations, exposing mosaics, stonework and structural layouts typical of a Roman spa town. The exposed remains showed both bathing facilities and associated urban features that indicated sustained settlement around the springs.

The site was the subject of widespread archaeological and conservation attention because planned dam works and the resulting reservoir threatened to inundate the valley and the excavated remains. Archaeologists and heritage groups campaigned to protect or document the site during excavation and mitigation efforts.

Allianoi lies close to Bergama, the site of ancient Pergamon, in western Turkey’s Izmir Province. The ruins are in the valley served by the springs and are accessed from Bergama and nearby roads.

  • Conservation controversy: The site became the focus of an international conservation campaign in the early 21st century because its valley was scheduled to be flooded by the Yortanlı Dam reservoir.

What to See #

  • Bath complex: A large Roman-era bath complex that formed the centre of public life, featuring baths, pools and associated service rooms uncovered during excavations in the early 2000s.
  • Town remains: Settlement remains including streets, building foundations and small-scale public structures excavated around the thermal area, providing evidence of an organized Roman town centred on the springs.
Allianoi
İzmir Province, Turkey (approx. 39.234846 N, 27.305574 E)
39.2348, 27.3056
Daylight hours for site visits (check local access rules)
Entry to the archaeological site may be restricted; fees and access vary

How to Get to Allianoi #

Accessible from Bergama in İzmir Province; drive or take local transport toward the village areas associated with the classical site. Local tourist information in Bergama can advise on current access and conservation status.

Tips for Visiting Allianoi #

  • Access depends on ongoing conservation and local regulations - check with Turkey's Ministry of Culture or local authorities before visiting.
  • Wear shoes suitable for archaeology sites - surfaces can be uneven and partially excavated.
  • A guided visit explains the contested modern history of the site, including preservation debates.

Best Time to Visit Allianoi #

Best in spring and autumn for moderate temperatures and clearer skies; consult local authorities for access information.

Spring
April-June · 12-24°C
Comfortable temperatures and good conditions for site visits.
Autumn
September-October · 16-26°C
Mild weather and fewer visitors; conservation activities are often visible.

Weather & Climate near Allianoi #

Climate

Allianoi's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with hot summers (peaking in July) and cold winters (coldest in January). Temperatures range from 2°C to 33°C. Moderate rainfall (701 mm/year) with a pronounced dry season.

Air Quality: AQI 62 Moderate
Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
43°
Warmest Month
-11°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 10°C and lows of 2°C. Significant rainfall (112 mm) and mostly overcast skies.

49 Poor

Comfort

Feels Like Cold
C
Temperature
10°
84%
Humidity
Very Humid

Weather

112 mm
Rainfall
2.7 m/s
Wind
Calm
0.2
UV Index
Low
9.6h daylight

February

February is cold with highs of 11°C and lows of 3°C. Regular rainfall (92 mm) and mostly overcast skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
11°
81%
Humidity
Very Humid

Weather

92 mm
Rainfall
3.1 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.6h daylight

March

March is cold with highs of 14°C and lows of 4°C. Moderate rainfall (72 mm) and partly cloudy skies.

57 Acceptable

Comfort

Feels Like Cold
C
Temperature
14°
76%
Humidity
Very Humid

Weather

72 mm
Rainfall
2.8 m/s
Wind
Calm
0.7
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 20°C and lows of 8°C. Moderate rainfall (57 mm) and partly cloudy skies.

69 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
20°
71%
Humidity
Very Humid

Weather

57 mm
Rainfall
2.4 m/s
Wind
Calm
1.2
UV Index
High
13.1h daylight

May

May is mild with highs of 25°C and lows of 12°C. Moderate rainfall (38 mm) and partly cloudy skies.

85 Excellent

Comfort

19°
Feels Like Mild
19°C
Temperature
12° 25°
66%
Humidity
Humid

Weather

38 mm
Rainfall
2.4 m/s
Wind
Calm
1.7
UV Index
Very High
14.2h daylight

June

June is mild with highs of 30°C and lows of 16°C. Light rainfall and mostly sunny skies.

93 Ideal

Comfort

23°
Feels Like Mild
23°C
Temperature
16° 30°
58%
Humidity
Humid

Weather

16 mm
Rainfall
2.7 m/s
Wind
Calm
2.1
UV Index
Extreme
14.7h daylight

July

July is the warmest month with highs of 33°C and lows of 19°C. The driest month with just 8 mm and clear sunny skies.

98 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
19° 33°
48%
Humidity
Comfortable

Weather

8 mm
Rainfall
3.3 m/s
Wind
Light Breeze
2.3
UV Index
Extreme
14.5h daylight

August

August is warm with highs of 32°C and lows of 19°C. Light rainfall and clear sunny skies.

98 Ideal

Comfort

26°
Feels Like Warm
26°C
Temperature
19° 32°
48%
Humidity
Comfortable

Weather

11 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.9
UV Index
Very High
13.5h daylight

September

September is mild with highs of 29°C and lows of 15°C. Light rainfall and mostly sunny skies.

93 Ideal

Comfort

22°
Feels Like Mild
22°C
Temperature
15° 29°
55%
Humidity
Humid

Weather

20 mm
Rainfall
2.7 m/s
Wind
Calm
1.3
UV Index
High
12.3h daylight

October

October is cool with highs of 22°C and lows of 11°C. Moderate rainfall (41 mm) and partly cloudy skies.

85 Excellent

Comfort

17°
Feels Like Cool
17°C
Temperature
11° 23°
67%
Humidity
Humid

Weather

41 mm
Rainfall
2.5 m/s
Wind
Calm
0.7
UV Index
Moderate
11.0h daylight

November

November is cool with highs of 16°C and lows of 7°C. Regular rainfall (94 mm) and partly cloudy skies.

65 Good

Comfort

11°
Feels Like Cool
11°C
Temperature
16°
75%
Humidity
Very Humid

Weather

94 mm
Rainfall
2.3 m/s
Wind
Calm
0.4
UV Index
Low
9.9h daylight

December

December is cold with highs of 12°C and lows of 4°C. The wettest month with heavy rain (140 mm) and mostly overcast skies.

47 Poor

Comfort

Feels Like Cold
C
Temperature
12°
83%
Humidity
Very Humid

Weather

140 mm
Rainfall
2.6 m/s
Wind
Calm
0.2
UV Index
Low
9.3h daylight

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