Tjörn
Tjörn
Large island in Bohuslän, Sweden
Tjörn (Swedish pronunciation: [ˈɕœːɳ]) is the sixth largest island in Sweden,[1] located on the Swedish west coast in the province of Bohuslän.
| Geography | |
|---|---|
| Coordinates | 58°01′N 11°38′E |
| Area | 147.54 km2 (56.97 sq mi)[1] |
| Administration | |
| County | Västra Götaland |
| Municipality | Tjörn |
The area of the island is 147 square kilometres (57 sq mi), and the area of the municipality is 168 square kilometres (65 sq mi). The population, as of 2017, was 15,774 people.[2]
Tjörn is connected in the east to the town of Stenungsund on the mainland by the Tjörn Bridge, and to the island of Orust in the north by the Skåpesund bridge.
The largest town is Skärhamn, and it is also the municipal capital. Other communities, many of which are fishing communities, include Rönnäng, Klädesholmen, and Kyrkesund. The peninsula of Mjörn has large shell banks.
Tjörn has a maritime climate influenced by its location off the coastline. Even so, the proximity to the mainland means that the weather station of Rörastrand more resembles a mainland coastal climate than one of the archipelago.
| Climate data for Rörastrand (2002–2021 averages, extremes since 1961 including Säby) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 10.4 (50.7) |
10.8 (51.4) |
17.1 (62.8) |
26.8 (80.2) |
30.1 (86.2) |
30.4 (86.7) |
32.3 (90.1) |
32.5 (90.5) |
26.3 (79.3) |
21.1 (70.0) |
14.6 (58.3) |
11.1 (52.0) |
32.5 (90.5) |
| Mean maximum °C (°F) | 7.4 (45.3) |
7.7 (45.9) |
12.3 (54.1) |
18.6 (65.5) |
23.7 (74.7) |
26.5 (79.7) |
28.1 (82.6) |
27.2 (81.0) |
23.0 (73.4) |
16.7 (62.1) |
11.9 (53.4) |
8.5 (47.3) |
29.5 (85.1) |
| Mean daily maximum °C (°F) | 2.4 (36.3) |
2.6 (36.7) |
6.2 (43.2) |
11.8 (53.2) |
16.4 (61.5) |
20.0 (68.0) |
22.1 (71.8) |
21.3 (70.3) |
17.6 (63.7) |
11.8 (53.2) |
7.2 (45.0) |
4.1 (39.4) |
12.0 (53.5) |
| Daily mean °C (°F) | 0.1 (32.2) |
0.1 (32.2) |
2.7 (36.9) |
7.2 (45.0) |
11.8 (53.2) |
15.5 (59.9) |
17.9 (64.2) |
17.3 (63.1) |
13.9 (57.0) |
8.7 (47.7) |
5.0 (41.0) |
1.9 (35.4) |
8.5 (47.3) |
| Mean daily minimum °C (°F) | −2.3 (27.9) |
−2.5 (27.5) |
−0.9 (30.4) |
2.6 (36.7) |
7.2 (45.0) |
11.0 (51.8) |
13.6 (56.5) |
13.2 (55.8) |
10.2 (50.4) |
5.6 (42.1) |
2.7 (36.9) |
−0.4 (31.3) |
5.0 (41.0) |
| Mean minimum °C (°F) | −11.9 (10.6) |
−10.5 (13.1) |
−8.2 (17.2) |
−3.6 (25.5) |
0.4 (32.7) |
5.7 (42.3) |
8.8 (47.8) |
7.4 (45.3) |
3.0 (37.4) |
−2.2 (28.0) |
−5.6 (21.9) |
−9.1 (15.6) |
−14.4 (6.1) |
| Record low °C (°F) | −26.9 (−16.4) |
−31.1 (−24.0) |
−21.2 (−6.2) |
−8.6 (16.5) |
−4.0 (24.8) |
0.7 (33.3) |
4.0 (39.2) |
2.0 (35.6) |
−3.0 (26.6) |
−9.0 (15.8) |
−15.7 (3.7) |
−23.2 (−9.8) |
−31.1 (−24.0) |
| Average precipitation mm (inches) | 85.4 (3.36) |
66.9 (2.63) |
56.7 (2.23) |
51.3 (2.02) |
58.8 (2.31) |
69.8 (2.75) |
85.3 (3.36) |
102.3 (4.03) |
91.3 (3.59) |
113.6 (4.47) |
96.8 (3.81) |
91.5 (3.60) |
969.7 (38.16) |
| Average extreme snow depth cm (inches) | 12 (4.7) |
13 (5.1) |
8 (3.1) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1 (0.4) |
2 (0.8) |
7 (2.8) |
19 (7.5) |
| Average precipitation days (≥ 1 mm) | 13 | 10 | 9 | 8 | 10 | 10 | 10 | 12 | 11 | 13 | 14 | 14 | 134 |
| Source 1: SMHI Open Data for Rörastrand, precipitation[3] | |||||||||||||
| Source 2: SMHI Open Data for Rörastrand, temperature[4] | |||||||||||||
During the summer, the population swells from 15,000 to 45,000 as vacationers arrive for yachting and swimming. Skärhamn has a guest harbor to accommodate yachters travelling along the Swedish west coast.
- "Statistisk årsbok 2011" (PDF) (in Swedish). Statistics Sweden. p. 12. Archived from the original (PDF) on 13 January 2012. Retrieved 5 July 2011.
- "Folkmängd i riket, län och kommuner 30 juni 2017 och befolkningsförändringar 1 april–30 juni 2017. Totalt". Archived from the original on 2017-08-22.
- "Open Data for Rörastrand" (in Swedish). Swedish Meteorological and Hydrological Institute. Retrieved 2 February 2022.
- "Open Data for Rörastrand" (in Swedish). Swedish Meteorological and Hydrological Institute. Retrieved 17 February 2022.
Media related to Tjörn at Wikimedia Commons