Harmaja
Lighthouse
Harmaja (Swedish: Gråhara) is an island and a lighthouse outside Helsinki, south of the Suomenlinna sea fortress. The island has been functioning as a landmark since the 16th century. A landmark structure was built on the island in the 18th century and a light house in 1883. The first lighthouse was only 7.3 m high and it soon proved to be too low. In 1900 the height was doubled by creating a rectangular brick building on a granite base. A large foghorn alerted ships in fog and in bad visibility. Harmaja received the world's first directed and undirected radio beacon in 1936. The lighthouse is fully automated today.
There is also a pilot station on the island.
During the 1952 Summer Olympics this was the center of the Olympic sailing event.
01Climate
| Climate data for Helsinki Harmaja 1991-2020 normals, records 1993-present | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 7.6 (45.7) |
7.5 (45.5) |
11.2 (52.2) |
16.1 (61.0) |
24.7 (76.5) |
27.4 (81.3) |
29.3 (84.7) |
27.0 (80.6) |
21.9 (71.4) |
16.0 (60.8) |
13.0 (55.4) |
8.7 (47.7) |
29.3 (84.7) |
| Mean daily maximum °C (°F) | −0.7 (30.7) |
−1.6 (29.1) |
0.9 (33.6) |
5.4 (41.7) |
11.1 (52.0) |
15.7 (60.3) |
19.2 (66.6) |
18.9 (66.0) |
14.6 (58.3) |
9.1 (48.4) |
4.7 (40.5) |
1.7 (35.1) |
8.3 (46.9) |
| Daily mean °C (°F) | −2.5 (27.5) |
−3.5 (25.7) |
−1.0 (30.2) |
2.8 (37.0) |
8.2 (46.8) |
13.1 (55.6) |
16.8 (62.2) |
16.6 (61.9) |
12.6 (54.7) |
7.3 (45.1) |
3.1 (37.6) |
0.1 (32.2) |
6.1 (43.0) |
| Mean daily minimum °C (°F) | −4.7 (23.5) |
−5.8 (21.6) |
−3.2 (26.2) |
1.1 (34.0) |
6.2 (43.2) |
11.2 (52.2) |
14.8 (58.6) |
14.8 (58.6) |
10.9 (51.6) |
5.9 (42.6) |
1.5 (34.7) |
−1.9 (28.6) |
4.2 (39.6) |
| Record low °C (°F) | −24.7 (−12.5) |
−24.3 (−11.7) |
−16.4 (2.5) |
−9.9 (14.2) |
−1.1 (30.0) |
3.4 (38.1) |
7.6 (45.7) |
7.9 (46.2) |
2.1 (35.8) |
−5.7 (21.7) |
−13.0 (8.6) |
−20.5 (−4.9) |
−24.7 (−12.5) |
| Average relative humidity (%) | 90 | 89 | 85 | 83 | 80 | 83 | 84 | 83 | 83 | 85 | 88 | 89 | 85 |
| Source: https://www.ilmatieteenlaitos.fi/ilmastollinen-vertailukausi | |||||||||||||
Sources and credits
This article is adapted from the Wikipedia article “Harmaja”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Gråhara-Harmaja.jpg by MoRsE 13:06, 3 April 2007 (UTC), CC BY-SA 3.0
- Harmaja Lighthouse.jpg by ExpressEditor, CC BY 4.0
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