Warsaw radio mast

Tower Former world's tallest radio mast, collapsed in 1991

Near Gąbin, the Warsaw Radio Mast stood as the world’s tallest structure from 1974 until its collapse in 1991. The former site attracts historians and engineers interested in Cold War‑era broadcasting and antenna design.

Main image

The Warsaw radio mast was a very tall radio broadcasting mast located near the village of Konstantynów in the Masovian region of Poland, completed in the 1970s. It was used for longwave radio transmission and was notable for being the tallest man-made structure in the world while it stood.

The mast served national longwave broadcasting and was a key element of Poland’s broadcast infrastructure until it collapsed on 8 August 1991 during maintenance work. Its failure removed the structure and ended its broadcasting role.

Erected in the mid-1970s, the mast’s construction and operation reflected Cold War-era broadcasting priorities and large-scale engineering for longwave transmission. Following the collapse the site was cleared and broadcasting operations were relocated to other facilities.

The mast stood in a rural area north-east of Warsaw in the Masovian Voivodeship; the collapse remains a well-documented event in engineering and broadcasting history.

  • Height and collapse: At 646.38 metres tall it was the world's tallest man-made structure while standing; the mast collapsed during renovation works on 8 August 1991 and no longer exists.
Warsaw radio mast
Site of the former Warsaw Radio Mast (collapsed 1991), near Konstantynów, Masovian Voivodeship, Poland
52.3678, 19.8025

Tips for Visiting Warsaw radio mast #

  • Be aware the Warsaw radio mast no longer exists: it collapsed in 1991, so there is no standing tower to visit and little to see at the original site beyond rural landscape.
  • If you're researching the mast or planning a pilgrimage, check local historical sources or museums in the region beforehand-any remaining markers or displays are likely in nearby towns rather than at the mast site itself.

Best Time to Visit Warsaw radio mast #

The original Warsaw radio mast collapsed in 1991; the site can be visited year‑round, with easier access in spring-autumn.

Year-round note
All year · Varies by season
The Warsaw radio mast collapsed in 1991 and is no longer standing; visits are to the site and surrounding area rather than a structure.
Spring-Autumn (easier access)
Apr-Oct · ~5-25°C
Warmer, drier months when rural roads and paths around the site are easiest to access.
Winter (limited access)
Nov-Mar · ~-10-5°C
Cold, possibly snowy conditions that can make rural access more difficult.

Weather & Climate near Warsaw radio mast #

Climate

Warsaw radio mast's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -6°C to 24°C. Moderate rainfall (528 mm/year).

Air Quality: AQI 62 Moderate
Best Time to Visit
AugustJulyMay
Temperature & Rainfall
Temperature Range
37°
Warmest Month
-31°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 0°C and lows of -6°C. Light rainfall and mostly overcast skies.

39 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6°
94%
Humidity
Very Humid

Weather

27 mm
Rainfall
4.5 m/s
Wind
Light Breeze
0.0
UV Index
Low
8.1h daylight

February

February is freezing with highs of 1°C and lows of -5°C. The driest month with just 21 mm and mostly overcast skies.

41 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-5°
91%
Humidity
Very Humid

Weather

21 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.1
UV Index
Low
9.7h daylight

March

March is cold with highs of 7°C and lows of -1°C. Moderate rainfall (31 mm) and mostly overcast skies.

48 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
85%
Humidity
Very Humid

Weather

31 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.3
UV Index
Low
11.7h daylight

April

April is cold with highs of 14°C and lows of 4°C. Moderate rainfall (32 mm) and partly cloudy skies.

66 Good

Comfort

Feels Like Cold
C
Temperature
14°
77%
Humidity
Very Humid

Weather

32 mm
Rainfall
3.8 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
13.8h daylight

May

May is cool with highs of 19°C and lows of 8°C. Moderate rainfall (49 mm) and partly cloudy skies.

70 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
19°
74%
Humidity
Very Humid

Weather

49 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.1
UV Index
High
15.5h daylight

June

June is cool with highs of 22°C and lows of 11°C. Moderate rainfall (68 mm) and partly cloudy skies.

70 Very Good

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 22°
69%
Humidity
Humid

Weather

68 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.3
UV Index
High
16.5h daylight

July

July is the warmest month with highs of 24°C and lows of 13°C. The wettest month with 75 mm of rain and partly cloudy skies.

76 Very Good

Comfort

18°
Feels Like Mild
18°C
Temperature
13° 24°
67%
Humidity
Humid

Weather

75 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.3
UV Index
High
16.0h daylight

August

August is mild with highs of 24°C and lows of 12°C. Moderate rainfall (60 mm) and partly cloudy skies.

78 Very Good

Comfort

18°
Feels Like Mild
18°C
Temperature
12° 24°
66%
Humidity
Humid

Weather

60 mm
Rainfall
3.0 m/s
Wind
Light Breeze
1.0
UV Index
High
14.5h daylight

September

September is cool with highs of 18°C and lows of 8°C. Moderate rainfall (52 mm) and partly cloudy skies.

70 Very Good

Comfort

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

Weather

52 mm
Rainfall
3.3 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
12.5h daylight

October

October is cold with highs of 13°C and lows of 5°C. Moderate rainfall (36 mm) and mostly overcast skies.

58 Acceptable

Comfort

Feels Like Cold
C
Temperature
13°
82%
Humidity
Very Humid

Weather

36 mm
Rainfall
3.7 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.4h daylight

November

November is cold with highs of 5°C and lows of 0°C. Moderate rainfall (38 mm) and mostly overcast skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
92%
Humidity
Very Humid

Weather

38 mm
Rainfall
4.1 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.6h daylight

December

December is freezing with highs of 1°C and lows of -4°C. Moderate rainfall (39 mm) and mostly overcast skies.

37 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°
94%
Humidity
Very Humid

Weather

39 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.5h daylight

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