# Anavyssos

Anavyssos (Greek: Ανάβυσσος) is a town and a former municipality in East Attica, Greece located in the Athens Riviera. Since the 2011 local government reform it is part of the municipality Saronikos, of which it is a municipal unit. The municipal unit has an area of 14.478 km$^2$. At the 2021 census it had 6,180 inhabitants.
It is situated near the Saronic Gulf coast, at the foot of Olympos hill (487 m). It is 2 km north of Palaia Fokaia, 4 km east of Saronida, 10 km west of Lavrio and 34 km southeast of Athens city centre. The Greek National Road 91 (Athens - Sounion) passes south of the town, along the coast. Anavyssos is located in the area of ancient Attica's demos of Anaflystos (Ανάφλυστος), which has shown significant archaeological findings like Kroisos Kouros that is exhibited in the National Archaeological Museum of Athens. The contemporary settlement was originally a village founded by Greek refugees who resettled there after fleeing from various areas of Asia Minor after the Asia Minor Campaign.
Anavyssos is the place where Elias Venezis, one of the most important Greek novelists of the 20th century located his 1939 novel 'Tranquility' (Γαλήνη). Today Anavyssos is a major coastal resort of Attica famous for water-sports, the town sees its population tripled during the summer months. In addition to the main part of the town, Anavyssos includes a number of satellite settlements such as Ag. Nikolaos, Mavro Lithari, Paralia Anavyssou, Lakka, Alykes etc.

## Historical population

| Year | Population |
| 1981 | 2,383 |
| 1991 | 4,108 |
| 2001 | 7,189 |
| 2011 | 6,202 |
| 2021 | 6,180 |

## Climate

According to the station of the National Observatory of Athens and the Hellenic Centre for Marine Research, Anavyssos has hot semi-arid climate (Köppen climate classification: BSh) with mild winters, hot summers and very low annual precipitation. Together with Lagonisi it is the driest area in mainland Greece, the Athens Riviera and the Attica peninsula, receiving only 295 mm of annual precipitation.
Climate data for Anavyssos 10 m a.s.l. :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 21.3 (70.3) | 22.9 (73.2) | 24.3 (75.7) | 32.0 (89.6) | 32.9 (91.2) | 37.9 (100.2) | 40.2 (104.4) | 41.9 (107.4) | 36.2 (97.2) | 33.4 (92.1) | 26.9 (80.4) | 22.7 (72.9) | 41.9 (107.4) |
| Mean daily maximum °C (°F) | 14.5 (58.1) | 15.6 (60.1) | 17.3 (63.1) | 21.3 (70.3) | 25.1 (77.2) | 30.1 (86.2) | 33.6 (92.5) | 33.5 (92.3) | 29.1 (84.4) | 24.4 (75.9) | 20.0 (68.0) | 15.8 (60.4) | 23.4 (74.0) |
| Daily mean °C (°F) | 11.2 (52.2) | 12.2 (54.0) | 13.5 (56.3) | 16.8 (62.2) | 20.7 (69.3) | 25.4 (77.7) | 28.6 (83.5) | 28.9 (84.0) | 24.7 (76.5) | 20.7 (69.3) | 16.9 (62.4) | 12.6 (54.7) | 19.3 (66.8) |
| Mean daily minimum °C (°F) | 7.9 (46.2) | 8.8 (47.8) | 9.8 (49.6) | 12.3 (54.1) | 16.3 (61.3) | 20.7 (69.3) | 23.7 (74.7) | 24.3 (75.7) | 20.4 (68.7) | 17.0 (62.6) | 13.7 (56.7) | 9.5 (49.1) | 15.4 (59.7) |
| Record low °C (°F) | −2.5 (27.5) | 1.0 (33.8) | 1.6 (34.9) | 4.8 (40.6) | 10.8 (51.4) | 13.4 (56.1) | 18.2 (64.8) | 19.8 (67.6) | 14.6 (58.3) | 9.3 (48.7) | 5.7 (42.3) | 1.5 (34.7) | −2.5 (27.5) |
| Average rainfall mm (inches) | 54.1 (2.13) | 30.6 (1.20) | 36.5 (1.44) | 12.4 (0.49) | 5.3 (0.21) | 8.6 (0.34) | 3.1 (0.12) | 1.1 (0.04) | 14.0 (0.55) | 21.8 (0.86) | 46.3 (1.82) | 61.4 (2.42) | 295.2 (11.62) |
| Source: National Observatory of Athens (Jul 2012-Nov 2024) Hellenic Centre for Marine Research World Meteorological Organization ||||||||||||||