# Rudsar

Rudsar (Persian: رودسر) is a city in the Central District of Rudsar County, Gilan province, Iran, serving as capital of both the county and the district.

## Etymology

The word Rudsar comes from the word Rud, the Persian word for river, and sar, the Persian word for head, since Rudsar has rivers running along each side of the city.

## History

According to valid historical documents, the ancient name of Roodsar was "Koutum", which was a small city in Rankooh. The other name of Roodsar was "Hoosem" that had a thriving bazaar and big mosque in the year 375 AH. Later on this city was ruined due to unknown reasons, and was reconstructed by Seyed Reza Kiya during the years 789-831 AH.
It was occupied by Russian forces along with the rest of northern Iran in the early 1900s.

## Demographics
### Population

At the time of the 2006 National Census, the city's population was 33,321 in 9,741 households. The following census in 2011 counted 37,579 people in 11,903 households. The 2016 census measured the population of the city as 37,998 people in 13,191 households.

## Geography
### Location

Rudsar is on the Caspian Sea, on a verdant coastal plain with a moderate climate, 326 kilometres (203 mi) from Tehran.

### Climate

Rudsar has a humid subtropical climate (Köppen: Cfa, Trewartha: Cf), with warm, humid summers and cool, damp winters.
Climate data for Rudsar :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °C (°F) | 10.1 (50.2) | 9.9 (49.8) | 11.9 (53.4) | 17.2 (63.0) | 22.4 (72.3) | 26.9 (80.4) | 29.4 (84.9) | 29.0 (84.2) | 26.1 (79.0) | 21.2 (70.2) | 17.1 (62.8) | 12.9 (55.2) | 19.5 (67.1) |
| Mean daily minimum °C (°F) | 2.3 (36.1) | 2.7 (36.9) | 5.3 (41.5) | 9.4 (48.9) | 14.3 (57.7) | 18.3 (64.9) | 20.8 (69.4) | 20.6 (69.1) | 18.0 (64.4) | 13.5 (56.3) | 8.9 (48.0) | 4.7 (40.5) | 11.6 (52.8) |
| Average precipitation mm (inches) | 80.62 (3.17) | 105.51 (4.15) | 98.86 (3.89) | 62.07 (2.44) | 25.33 (1.00) | 42.45 (1.67) | 82.19 (3.24) | 60.07 (2.36) | 160.48 (6.32) | 251.79 (9.91) | 190.82 (7.51) | 114.71 (4.52) | 1,274.9 (50.18) |
| Average extreme snow depth cm (inches) | 3.61 (1.42) | 2.04 (0.80) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 3.61 (1.42) |
| Average precipitation days | 12.2 | 11.8 | 15 | 12.4 | 11.3 | 7 | 5.6 | 8.4 | 10.7 | 13.6 | 11.7 | 12.1 | 131.8 |
| Average relative humidity (%) | 83.3 | 84 | 84.8 | 81.9 | 80 | 75.8 | 74.3 | 77.1 | 80.3 | 83.6 | 83.8 | 83.8 | 81.1 |
| Average dew point °C (°F) | 3.6 (38.5) | 3.8 (38.8) | 6.2 (43.2) | 10.3 (50.5) | 14.8 (58.6) | 18.1 (64.6) | 20.2 (68.4) | 20.5 (68.9) | 18.5 (65.3) | 14.5 (58.1) | 10.3 (50.5) | 6.2 (43.2) | 12.3 (54.1) |
| Mean monthly sunshine hours | 114.7 | 101.7 | 93 | 132 | 182.9 | 222 | 223.2 | 189.1 | 150 | 127.1 | 117 | 105.4 | 1,758.1 |
| Mean daily sunshine hours | 3.7 | 3.6 | 3 | 4.4 | 5.9 | 7.4 | 7.2 | 6.1 | 5 | 4.1 | 3.9 | 3.4 | 4.8 |
| Mean daily daylight hours | 10.4 | 11.3 | 12.4 | 12.4 | 14.7 | 15.2 | 14.9 | 14 | 12.8 | 11.7 | 10.6 | 10.1 | 12.5 |
| Percent possible sunshine | 34.4 | 31 | 23.3 | 31.7 | 39.3 | 47.2 | 46.6 | 42 | 37.5 | 33.5 | 35.3 | 32 | 36.2 |
| Source 1: IRIMO(precipitation 2007-2016, snow depth 2007-2023) ||||||||||||||
| Source 2: =Weatherbase Weathre2visit(Sun) ||||||||||||||

## Economy

The economy of the city is based on fishing and agriculture. The major products of Roudsar are rice, tea, citrus fruits, and silk.

## Notable people

* Abbas Mahfouzi, Cleric
* Ataollah Salehi, General
* Mohammad Mohammadi Gilani, Cleric, Head of Guardian Council and Supreme Court
* Asadollah Abbasi, Governor General of Gilan