Porta Asinaria

Monument Ancient Roman gate in Aurelian Walls, southeastern access

A surviving Roman gate in the walls of Rome, Porta Asinaria attracts walkers exploring the city’s ancient fortifications and nearby Late Antique and medieval sites.

Main image

Porta Asinaria is an ancient city gate in Rome, incorporated into the Aurelian Walls constructed in the late 3rd century AD. The gate survives as a combination of Roman walling with later medieval modifications.

The structure presents visible phases of construction from the imperial period through the Middle Ages, and it stands adjacent to modern streets in Rome’s southern sector. Although not a large tourist site, it is of interest to those tracing the city’s defensive architecture and urban development.

Erected with the Aurelian Walls in the late 3rd century AD, the gate has been altered and repaired in later centuries, particularly in the medieval period when many of Rome’s gates were fortified or adapted. It has continued to stand as part of the city’s historic fabric through modern times.

The gate is located on Rome’s southern perimeter within the historic city, near the Baths of Caracalla and the Lateran area, and is visible from nearby streets that follow the line of the ancient walls.

  • Origins: Built as part of Rome's outer defensive circuit in the late 3rd century AD, the gate retains visible medieval alterations and later repairs.

What to See #

  • Gate structure: The surviving gate structure and associated medieval additions set within the Aurelian Walls of Rome, showing layers of ancient and later masonry.
Porta Asinaria
41.8857, 12.5087

How to Get to Porta Asinaria #

The gate is a 5-10 minute walk east from San Giovanni (Lateran) basilica and a 15-20 minute walk from the Circo Massimo metro stop (Line B). Several bus lines serve Via Merulana and nearby streets; consult local maps for the exact pedestrian route from the basilica.

Tips for Visiting Porta Asinaria #

  • Approach from the Lateran side and look back at the brick face in late afternoon-light brings out the Roman brickwork.
  • Combine a visit with the nearby San Giovanni in Laterano basilica; the gate sits a short walk away and is often overlooked.
  • Avoid rush hour on Via delle Terme di Caracalla; the surrounding streets are narrow and parking is scarce.

Best Time to Visit Porta Asinaria #

Best visited spring or autumn to avoid Rome's summer heat and large crowds; the gate itself is an exterior monument so weather mostly affects comfort and light.

Spring
March-May · 10-20°C
Pleasant walking weather; Roman ruins and gates are less crowded than summer.
Autumn
September-November · 12-22°C
Cool mornings and softer light for photographing the Aurelian Walls.
Winter
December-February · 2-12°C
Quieter streets but bring a coat; the city's museums have shorter lines.

Weather & Climate near Porta Asinaria #

Climate

Porta Asinaria's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with warm summers (peaking in August) and cold winters (coldest in January). Temperatures range from 4°C to 31°C. Moderate rainfall (726 mm/year).

Air Quality: AQI 56 Moderate
Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
41°
Warmest Month
-5°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 12°C and lows of 4°C. Moderate rainfall (75 mm) and partly cloudy skies.

55 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
81%
Humidity
Very Humid

Weather

75 mm
Rainfall
1.8 m/s
Wind
Calm
0.2
UV Index
Low
9.4h daylight

February

February is cold with highs of 13°C and lows of 4°C. Moderate rainfall (68 mm) and partly cloudy skies.

61 Good

Comfort

Feels Like Cold
C
Temperature
13°
79%
Humidity
Very Humid

Weather

68 mm
Rainfall
2.1 m/s
Wind
Calm
0.4
UV Index
Low
10.5h daylight

March

March is cool with highs of 16°C and lows of 6°C. Moderate rainfall (60 mm) and partly cloudy skies.

71 Very Good

Comfort

11°
Feels Like Cool
11°C
Temperature
16°
76%
Humidity
Very Humid

Weather

60 mm
Rainfall
2.4 m/s
Wind
Calm
0.7
UV Index
Moderate
11.8h daylight

April

April is cool with highs of 18°C and lows of 8°C. Moderate rainfall (59 mm) and partly cloudy skies.

73 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
18°
72%
Humidity
Very Humid

Weather

59 mm
Rainfall
2.5 m/s
Wind
Calm
1.2
UV Index
High
13.2h daylight

May

May is cool with highs of 23°C and lows of 12°C. Moderate rainfall (42 mm).

87 Excellent

Comfort

18°
Feels Like Cool
18°C
Temperature
12° 23°
68%
Humidity
Humid

Weather

42 mm
Rainfall
2.1 m/s
Wind
Calm
1.7
UV Index
Very High
14.4h daylight

June

June is mild with highs of 27°C and lows of 16°C. Moderate rainfall (31 mm) and mostly sunny skies.

91 Ideal

Comfort

22°
Feels Like Mild
22°C
Temperature
16° 27°
62%
Humidity
Humid

Weather

31 mm
Rainfall
2.2 m/s
Wind
Calm
2.1
UV Index
Extreme
15.0h daylight

July

July is warm with highs of 30°C and lows of 19°C. The driest month with just 16 mm and clear sunny skies.

97 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
19° 30°
55%
Humidity
Humid

Weather

16 mm
Rainfall
2.3 m/s
Wind
Calm
2.2
UV Index
Extreme
14.7h daylight

August

August is the warmest month with highs of 31°C and lows of 19°C. Moderate rainfall (34 mm) and clear sunny skies.

93 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
19° 31°
55%
Humidity
Humid

Weather

34 mm
Rainfall
2.1 m/s
Wind
Calm
1.8
UV Index
Very High
13.7h daylight

September

September is mild with highs of 27°C and lows of 16°C. Moderate rainfall (66 mm) and mostly sunny skies.

85 Excellent

Comfort

21°
Feels Like Mild
21°C
Temperature
16° 27°
64%
Humidity
Humid

Weather

66 mm
Rainfall
1.9 m/s
Wind
Calm
1.2
UV Index
High
12.3h daylight

October

October is cool with highs of 22°C and lows of 12°C. Regular rainfall (90 mm).

73 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 22°
73%
Humidity
Very Humid

Weather

90 mm
Rainfall
1.8 m/s
Wind
Calm
0.7
UV Index
Moderate
11.0h daylight

November

November is cool with highs of 16°C and lows of 8°C. The wettest month with 100 mm of rain and partly cloudy skies.

67 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
80%
Humidity
Very Humid

Weather

100 mm
Rainfall
1.8 m/s
Wind
Calm
0.3
UV Index
Low
9.7h daylight

December

December is cold with highs of 13°C and lows of 5°C. Regular rainfall (85 mm) and partly cloudy skies.

59 Acceptable

Comfort

Feels Like Cold
C
Temperature
13°
81%
Humidity
Very Humid

Weather

85 mm
Rainfall
2.0 m/s
Wind
Calm
0.2
UV Index
Low
9.1h daylight

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