title: Ryōtsu, Niigata
text: # Ryōtsu, Niigata
  
  Ryōtsu (両津市, Ryōtsu-shi) was a city located in Sado Island, Niigata Prefecture, Japan.
  
  On March 1, 2004, Ryōtsu and the other 9 municipalities in the island were merged to create the city of Sado. Since then, Ryōtsu has been one of the 10 subdivisions of Sado City.
  
  As of 2003, the city had an estimated population of 16,710 and a density of 71.60 persons per $km^2.$ The total area was 233.37 $km^2.$
  
  ## History
  
  The city was founded on November 3, 1954.
  
  On March 1, 2004, Ryōtsu, along with the rest of Sado Island (the towns of Aikawa, Kanai, Sawata, Hatano, Mano, Hamochi and Ogi, and the villages of Niibo and Akadomari (all from Sado District)), was merged to create the city of Sado.
  
  ## Transportation
  
  ### Bus
  
  * Niigata Kotsu Sado
  
  ### Highway
  
  * National Route 350
  
  ### Sea
  
  * Ryōtsu Port
     * Sado Kisen Terminal
        * Car ferry and Jetfoil services to/from Niigata Port
  
  ## Local attractions
  
  * Lake Kamo
  * Onogame
  * Futatsugame
  * Onogame
  * Futatsugame
  * Himezaki Lighthouse
  
  ## Climate
  
  Climate data for Ryōtsu (1991−2020 normals, extremes 1978−present) :
  
  | Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | Record high °C (°F) | 14.2 (57.6) | 19.9 (67.8) | 20.5 (68.9) | 26.9 (80.4) | 29.0 (84.2) | 30.7 (87.3) | 37.7 (99.9) | 38.8 (101.8) | 38.2 (100.8) | 29.5 (85.1) | 23.9 (75.0) | 19.0 (66.2) | 38.8 (101.8) |
  | Average high °C (°F) | 5.8 (42.4) | 6.2 (43.2) | 9.5 (49.1) | 14.7 (58.5) | 19.7 (67.5) | 23.4 (74.1) | 27.4 (81.3) | 29.6 (85.3) | 26.2 (79.2) | 20.6 (69.1) | 14.6 (58.3) | 8.8 (47.8) | 17.2 (63.0) |
  | Daily mean °C (°F) | 3.0 (37.4) | 3.1 (37.6) | 5.9 (42.6) | 10.8 (51.4) | 15.8 (60.4) | 20.0 (68.0) | 24.2 (75.6) | 26.1 (79.0) | 22.5 (72.5) | 16.8 (62.2) | 11.0 (51.8) | 5.7 (42.3) | 13.7 (56.7) |
  | Average low °C (°F) | 0.2 (32.4) | 0.0 (32.0) | 2.2 (36.0) | 6.9 (44.4) | 12.2 (54.0) | 17.0 (62.6) | 21.5 (70.7) | 23.0 (73.4) | 19.2 (66.6) | 13.1 (55.6) | 7.3 (45.1) | 2.5 (36.5) | 10.4 (50.8) |
  | Record low °C (°F) | −6.9 (19.6) | −7.1 (19.2) | −4.5 (23.9) | −1.0 (30.2) | 3.6 (38.5) | 10.4 (50.7) | 13.8 (56.8) | 16.4 (61.5) | 10.8 (51.4) | 3.7 (38.7) | −0.8 (30.6) | −4.6 (23.7) | −7.1 (19.2) |
  | Average precipitation mm (inches) | 164.3 (6.47) | 118.7 (4.67) | 109.1 (4.30) | 104.6 (4.12) | 107.3 (4.22) | 138.9 (5.47) | 233.2 (9.18) | 142.7 (5.62) | 136.7 (5.38) | 139.2 (5.48) | 155.2 (6.11) | 210.0 (8.27) | 1,758.5 (69.23) |
  | Average precipitation days (≥ 1.0 mm) | 23.0 | 18.1 | 15.7 | 11.7 | 9.7 | 9.3 | 11.4 | 9.1 | 11.4 | 12.9 | 16.9 | 22.7 | 171.9 |
  | Mean monthly sunshine hours | 52.9 | 79.1 | 140.7 | 190.9 | 216.5 | 185.1 | 177.9 | 219.5 | 159.9 | 150.9 | 99.3 | 56.9 | 1,735.7 |
  | Source: Japan Meteorological Agency ||||||||||||||
  