Russarö

The Finnish 234 mm Coastal artillery in Russarö during the military exercise in the 1930s.

Russarö is an island south of Hanko. The island is closed to the public as it is military area of the Finnish Defence Forces. The island hosts the five-story Russarö Lighthouse built in 1863[1][2] and a Finnish Meteorological Institute weather station.[3]

December 1939

On 1 December 1939, the Soviet light cruiser Kirov, accompanied by the destroyers Stremitelny and Smetlivy, approached the fortified coastal artillery battery located on the island. After a short exchange of fire, Stremitelny and Kirov were hit and the ships withdrew. Aboard the Kirov, 17 men were killed and 30 wounded.

Climate

Climate data for Hanko Russarö (1991-2020 normals, extremes 1959- present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 7.6
(45.7)
7.8
(46.0)
10.2
(50.4)
17.7
(63.9)
26.5
(79.7)
28.2
(82.8)
30.5
(86.9)
27.7
(81.9)
22.9
(73.2)
16.3
(61.3)
12.9
(55.2)
9.6
(49.3)
30.5
(86.9)
Mean maximum °C (°F) 4.8
(40.6)
3.7
(38.7)
5.9
(42.6)
11.6
(52.9)
18.8
(65.8)
21.9
(71.4)
25.0
(77.0)
23.7
(74.7)
19.4
(66.9)
14.2
(57.6)
9.6
(49.3)
6.4
(43.5)
25.9
(78.6)
Mean daily maximum °C (°F) 0.6
(33.1)
−0.5
(31.1)
1.7
(35.1)
5.9
(42.6)
11.6
(52.9)
16.4
(61.5)
20.3
(68.5)
19.8
(67.6)
15.5
(59.9)
9.8
(49.6)
5.5
(41.9)
2.7
(36.9)
9.1
(48.4)
Daily mean °C (°F) −1.3
(29.7)
−2.6
(27.3)
−0.5
(31.1)
3.2
(37.8)
8.5
(47.3)
13.4
(56.1)
17.4
(63.3)
17.2
(63.0)
13.2
(55.8)
8.0
(46.4)
3.9
(39.0)
1.1
(34.0)
6.8
(44.2)
Mean daily minimum °C (°F) −3.3
(26.1)
−4.6
(23.7)
−2.7
(27.1)
1.1
(34.0)
5.9
(42.6)
11.1
(52.0)
15.0
(59.0)
14.9
(58.8)
11.2
(52.2)
6.2
(43.2)
2.2
(36.0)
−0.9
(30.4)
4.7
(40.4)
Mean minimum °C (°F) −13.0
(8.6)
−13.3
(8.1)
−9.4
(15.1)
−3.0
(26.6)
1.5
(34.7)
7.0
(44.6)
11.0
(51.8)
10.7
(51.3)
5.9
(42.6)
−0.4
(31.3)
−4.1
(24.6)
−8.5
(16.7)
−15.9
(3.4)
Record low °C (°F) −33.6
(−28.5)
−30.6
(−23.1)
−21.2
(−6.2)
−13.6
(7.5)
−2.6
(27.3)
3.7
(38.7)
8.2
(46.8)
6.0
(42.8)
1.0
(33.8)
−6.7
(19.9)
−15.0
(5.0)
−27.3
(−17.1)
−33.6
(−28.5)
Source 1: FMI normals 1991-2020[4]
Source 2: Record highs and lows[5]

References

  1. ^ Majakkamestarit ry: Russarö (in Finnish)
  2. ^ The Finnish Maritime Administration: Russarö (in Finnish)
  3. ^ Finnish Meteorological Institute: Paikallissään asemakuvaukset (in Finnish)
  4. ^ "FMI normals 1991-2020". FMI. Retrieved 15 May 2025.
  5. ^ "FMI open data". FMI. Retrieved May 15, 2025.

59°46′19″N 22°56′50″E / 59.77194°N 22.94722°E / 59.77194; 22.94722