Vlychos
The weather is most comfortable for walking and sightseeing in May and June, and the sea reaches 22 °C from May to September. The nearest official bathing-water site is Vlychos, classified Excellent in 2024 (EEA).
- Regional elevation
- 0–700 mrange over a ~22 km cell (Copernicus DEM), not the height of the settlement
- Nearest official beach
- 195 min a straight line (EEA, YPEN)
When to go
- Jan13°15°
- Feb13°15°
- Mar14°16°
- Apr16°19°
- May20°23°comfortable weather, warm sea
- Jun24°25°comfortable weather, warm sea
- Jul27°26°warm sea
- Aug27°25°warm sea
- Sep25°23°warm sea
- Oct21°20°
- Nov18°18°
- Dec14°16°
- Top figure: air, bottom: sea
- Comfortable weather for walking
- Sea 22 °C or warmer
The weather is most comfortable for walking and sightseeing in May and June (average temperature around 21.7 °C, little rain).
The sea is 22 °C or warmer from May to September (up to 25.8 °C).
Monthly rain reaches 80 mm or more from November to January.
Day length is 9 h 35 min at the winter solstice (07:36 to 17:11) and 14 h 44 min at the summer solstice (06:05 to 20:49), Greek time.
- Mean temperature °C
- Rain (mm, right axis)
- Sea °C
- Sea 22 °C or warmer
| Month | Mean temp. °C | Rain mm | Sea °C | Daylight h |
|---|---|---|---|---|
| Jan | 12.6 | 86 | 14.9 | 9.8 |
| Feb | 12.6 | 71 | 15.1 | 10.8 |
| Mar | 13.9 | 58 | 16.1 | 11.9 |
| Apr | 15.8 | 32 | 18.9 | 13.1 |
| May (sea 22 °C or warmer) | 19.5 | 24 | 22.5 | 14.2 |
| Jun (sea 22 °C or warmer) | 23.8 | 20 | 25.0 | 14.7 |
| Jul (sea 22 °C or warmer) | 26.6 | 11 | 25.8 | 14.5 |
| Aug (sea 22 °C or warmer) | 27.0 | 8 | 24.8 | 13.7 |
| Sep (sea 22 °C or warmer) | 24.6 | 30 | 22.8 | 12.5 |
| Oct | 21.1 | 54 | 20.3 | 11.3 |
| Nov | 17.8 | 82 | 17.5 | 10.2 |
| Dec | 14.4 | 101 | 15.5 | 9.6 |
Temperature and rain: NASA POWER (MERRA-2), period 2001–2020, model cell about 32 km away. The temperatures are monthly averages from a regional model. Sea: NOAA OISST v2.1, period 1991–2020, nearest cell about 9 km away (0.25 degree grid). Daylight: calculated for the 15th of each month. These are regional model values and typical conditions, not a forecast.
Around here
Distances are in a straight line from the point OpenStreetMap records for the settlement and are not travel times. The nearest option that does not cross water is preferred. OpenStreetMap coverage is uneven.
| Category | Name | Distance |
|---|---|---|
| Hospital | Κουλούρειο Νοσοκομείο Ύδρας Παναγία η Φανερωμένη - Hospital | 1.8 km |
| Doctor or clinic | unnamed in OSM | 1.9 km |
| Pharmacy | ΡΑΦΑΛΙΑΣ | 1.8 km |
| School | unnamed in OSM | 2.3 km |
| Supermarket | unnamed in OSM | 1.8 km |
Beaches nearby
Within 10 km in a straight line, without crossing water. The class is the latest EU assessment (season 2024) and the history counts classified seasons since 2011.
| Beach | Water class | History | Distance |
|---|---|---|---|
| Vlychos | Excellent | Excellent in 14 of 14 seasons | 195 m |
| Mikro Kamini – Kaminia | Excellent | Excellent in 14 of 14 seasons | 906 m |
| Avlaki | Excellent | Excellent in 14 of 14 seasons | 1.6 km |
| Spilia | Excellent | Excellent in 14 of 14 seasons | 1.8 km |
| Mandraki | Excellent | Excellent in 14 of 14 seasons | 3.7 km |
Also mapped, not officially monitored
Named beaches in OpenStreetMap that are not on the official bathing-water list. They have no water class in our data, which says nothing about how clean the water is.
- Plakes796 m
- Καουμίθι5.0 km
- Παραλία Μπίστι7.4 km
- Μπίστη7.6 km
- Αγ. Νικόλας8.0 km
Things to see nearby
Named places within 10 km, without crossing water, from Wikidata and OpenStreetMap, merged when they are the same place. Up to 4 per group, nearest first. Not a guide: it shows what has been recorded, and coverage is uneven.
Castles and fortifications
- Οχυρά Μανδρακίου Ύδρας2.1 km
Museums
- Οικία Λάζαρου Κουντουριώτη1.7 km
- Αρχοντικό Παύλου Κουντουριώτη1.8 km
- Εκκλησιαστικό Μουσείο Ύδρας1.9 km
- Ιστορικό Αρχείο - Μουσείο Ύδρας2.1 km
Monasteries
Getting there and around
The nearest mapped transport points in a straight line. The data holds no timetables or journey times; where an official source exists it is linked below.
| Kind | Name | Distance |
|---|---|---|
| Airport | Athens International Airport "Eleftherios Venizelos" (ATH) (in the Municipality of Spata - Artemida, across the water) | 79.5 km |
| Ferry terminal | Port of Hydra | 2.0 km |
Rows marked "across the water" have no mapped option on the same side of the water within the search distance. The straight line crosses water, so the real journey is longer and may need a ferry or a long detour.
Nature and the land around
No Natura 2000 site within 10 km.
The land around
Within about 3 km: Water (sea or lakes) 50%, Open/natural land (grassland, bare ground) 40%, Woodland or shrubland 10%.
Source: ESA WorldCover 2021, a 10 m satellite classification generalised to a ~1 km grid. Shares are rounded to 5% and describe what covers the ground, not land use or building rights.
Everyday
The venue counts show only what OpenStreetMap contributors have mapped, not a guide.
| Item | What is recorded |
|---|---|
| Food and coffee | Mapped in OpenStreetMap within 1 km: 3 restaurants (tavernas included) and 1 café. |
Context from the map
The same facts the Katatopisi map shows for the settlement's point, in the same words. They are regional data, not a survey or a safety guarantee.
| Topic | What is recorded |
|---|---|
| Flooding (YPEN hazard maps) | No mapped flood hazard area nearby |
| Wildfires | 6 recorded fires within 5 km (EFFIS, 2016–2026). Nearest burnt area: 26 Jun 2022 (10 hectares), 2.2 km away |
| Earthquake hazard (ESHM20) | Expected ground shaking: 0.23g · moderate. The figure is for rock; soft ground shakes harder. |
| SEVESO sites | No SEVESO site within 5 km |
Maps cover designated high-risk zones only, and only the low-probability scenario (1-in-1000 years); scenarios for more frequent floods are not included. “Outside” does not mean “safe”.
Mean peak ground acceleration with a 10% chance of being exceeded in 50 years (the 475-year return period), from the European ESHM20 model. It is a regional figure, not a ground study for this plot.
Fires: EFFIS (Copernicus), areas of roughly 30 hectares and above; the dates in our data run 2016–2026. Smaller fires do not appear.
Nearby
Straight-line distances.
Municipality of Hydra: all settlements and beaches of the municipality
Nearby places
Identifiers
| Source | Link |
|---|---|
| OpenStreetMap | settlement node |
| Wikidata | Q21643939 |
Sources
Every figure on this page comes from the sources below, with the date each was updated.
- Monthly climate normalsNASA POWER, MERRA-2 meteorological model · 2001–2020 climatology period returned by NASA POWER · Date:
- Sea temperature (NOAA OISST)NOAA National Centers for Environmental Information / Physical Sciences Laboratory · OISST v2.1 monthly long-term mean climatology, 1991-2020 period · Date:
- Elevation and slope (Copernicus DEM)ESA / Airbus Defence and Space, Copernicus WorldDEM-30, via AWS Open Data · Copernicus DEM GLO-30, TanDEM-X radar data 2011-2015 · Date:
- Everyday places, tourism, transport and natureOpenStreetMap contributors, via the Overpass API · Live database at the time of the query · Date:
- Flood hazard maps and potential flood risk zonesMinistry for Environment and Energy, YPEN geoportal (INSPIRE WFS) · 2nd cycle Flood Risk Management Plans (Floods Directive 2007/60/EC) · Date:
- Burnt areasEFFIS, European Forest Fire Information System (Copernicus EMS) · Rolling archive of mapped burnt areas · Date:
- SEVESO III industrial establishmentsMinistry for Environment and Energy, YPEN geoportal · Current register as served by the WFS · Date:
- Seismic hazard (ESHM20)EFEHR / ETH Zürich, European Seismic Hazard Model 2020 · ESHM20, released 2022, PGA, 10% exceedance in 50 years, on rock · Date:
- Objective property value zonesMinistry of National Economy and Finance, via data.gov.gr · 2021 revision of the objective value system · Date:
- Designated bathing waters (locations)Ministry for Environment and Energy, YPEN geoportal · Current bathing season register · Date:
- Bathing water quality classificationEuropean Environment Agency, WISE Bathing Water Directive database · Latest assessed season in the EEA database; every season from 2011 is kept as a per-beach history · Date:
- Wikidata landmarks: castles, monasteries, museums, archaeological sites and natural landmarksWikidata contributors · Live SPARQL query snapshot, taken 25 September 2026 · Date:
- Tourist attractions and natural landmarksOpenStreetMap contributors, via a Geofabrik snapshot · Geofabrik snapshot, downloaded 25 September 2026 · Date:
- AirportsFraport Greece; the Hellenic Civil Aviation Authority (ΥΠΑ/HCAA); Wikipedia (cross-checked for IATA/ICAO codes and coordinates) · Checked 24 September 2026 · Date:
- Natura 2000 protected sitesMinistry for Environment and Energy, YPEN geoportal · Current national Natura 2000 network · Date:
- Natura 2000 site namesEuropean Environment Agency (EEA) / European Commission Directorate-General for Environment (DG ENV) · EEA Natura 2000 register, snapshot taken 25 September 2026 (446 Greek sites) · Date:
- Land cover (ESA WorldCover)ESA WorldCover consortium, via public AWS S3 · ESA WorldCover 2021, v200 · Date:
- Land and minor islands for the display maskNatural Earth · Natural Earth 10m land 5.1.1, minor islands 4.1.0, lakes 5.0.0 · Date:
- Municipal boundaries, settlements and settlement altitudesOpenStreetMap (Geofabrik Greece extract, 24 Sep 2026), ODbL · Date:
Page updated .