KatatopisiΕλληνικά

Regional unitΠεριφερειακή Ενότητα Αχαΐας

Achaia

Achaia: location in Greece

The regional unit has 34 official bathing-water sites; of the 34 with a classification in the 2024 season, all were Excellent (EEA). At most of these beaches the average sea temperature is 22 °C or higher from May to September (NOAA, 1991–2020). In the seat of the regional unit the weather is most comfortable for walking and sightseeing in May, June and September.

Open on the map

Municipalities
5OpenStreetMap, 6 Oct 2026
Official bathing-water sites
34YPEN register, EEA
Excellent in 2024
34 of 34100% of classified sites (EEA)
Sea at 22 °C or more
May–Sepat most beaches, NOAA average 1991–2020
Airports
1list of commercial airports
Ferry ports
4ports with ferry terminals (OpenStreetMap)
Natura 2000
16 sitesoverlap the area (YPEN)
Wildfires 2016–2026
33 firesabout 14,739 hectares burnt (EFFIS)
Zone prices 2021, per m²
450–1,450 €246 zones, a tax value and not a market price

When to go

This section is about Patras, the seat of the regional unit not the whole regional unit.

  1. Jan5°15°
  2. Feb6°15°
  3. Mar8°16°
  4. Apr12°19°
  5. May17°22°comfortable weather, warm sea
  6. Jun22°25°comfortable weather, warm sea
  7. Jul25°26°warm sea
  8. Aug25°25°warm sea
  9. Sep20°23°comfortable weather, warm sea
  10. Oct16°20°
  11. Nov11°17°
  12. Dec7°15°

The weather is most comfortable for walking and sightseeing in May, June and September (average temperature around 19.5 °C, little rain).

The sea is 22 °C or warmer from May to September (up to 25.6 °C).

The average temperature is 10 °C or lower from December to March, while monthly rain reaches 80 mm or more from November to February.

Day length is 9 h 30 min at the winter solstice (07:45 to 17:15) and 14 h 50 min at the summer solstice (06:09 to 20:59), Greek time.

Temperature and rainfall by month. The same values are in the table.01020300100200°CmmJanFebMarAprMayJunJulAugSepOctNovDec
Temperature and rainfall by month
  • Mean temperature °C
  • Rain (mm, right axis)
  • Sea °C
  • Sea 22 °C or warmer
Monthly climate figures
MonthMean temp. °CRain mmSea °CDaylight h
Jan5.110514.69.8
Feb5.78114.710.8
Mar8.46416.011.9
Apr11.73618.713.2
May (sea 22 °C or warmer)16.52722.314.2
Jun (sea 22 °C or warmer)21.72524.514.8
Jul (sea 22 °C or warmer)25.01825.614.6
Aug (sea 22 °C or warmer)25.11524.713.7
Sep (sea 22 °C or warmer)20.35022.512.5
Oct15.57820.211.3
Nov10.810217.410.1
Dec6.511715.49.5

Temperature and rain: NASA POWER (MERRA-2), period 2001–2020, model cell about 30 km away. The temperatures are monthly averages from a regional model. Sea: NOAA OISST v2.1, period 1991–2020, nearest cell about 19 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.

Municipalities

The 5 municipalities of the regional unit, with the main town and the official bathing-water sites of each.

Best beaches

The 6 official sites with the most seasons of Excellent water since 2011; ties are settled by the latest classification (2024 season). It is the EU's classification by season, not a reading on the day.

Beaches with the most consistent water quality
BeachLatest classHistory
ArachovitikaExcellentExcellent in 14 of 14 seasons
Digeliotika 1ExcellentExcellent in 14 of 14 seasons
Kato AchaiaExcellentExcellent in 14 of 14 seasons
Kounoupelo - KalogriaExcellentExcellent in 14 of 14 seasons
NiforeikaExcellentExcellent in 14 of 14 seasons
Aigio – AlykesExcellentExcellent in 13 of 14 seasons

All beaches in Greece

Towns to know

Cities, towns and villages of the regional unit that have a page of their own, larger ones first. Population only sets the order and is never shown.

Cities and towns

Villages

Sights

A short selection from Wikidata, not a ranking of importance: only entries that have a Wikidata item, those with a page of their own on this site first, then those with an English label, then the oldest item. Up to 3 per kind. Coverage is uneven.

Castles

Archaeological sites

Museums

Monasteries

Caves

Canyons

Lighthouses

Natura 2000 protected areas

14 Natura 2000 sites with a page of their own in the regional unit. Each page says what the site protects, from the European Environment Agency's Natura 2000 database.

All Natura 2000 sites

Getting there

The airports and ferry ports of the area as our sources record them. We do not copy timetables or fares, because they would go stale; where an official source exists it is linked below.

Airports
AirportIATAMunicipality
Araxos National Airport "Agamemnon" – PatrasGPAWest Achaea
Ferry ports, most mapped terminals first
Port, at the nearest settlementTerminals in OSMMunicipality
Patras6Patras
Rio4Patras
Patras2Patras
Myrtia2Aigialeia

Official travel information

Routes and connections can change by season. Confirm times and service directly with the operator before travelling.

How the numbers were counted

Each municipality belongs to the region and regional unit that OpenStreetMap records for it, and the figures on this page add up its municipalities. Beaches, airports, ports and sights belong to the municipality that contains them (up to 3 km outside the boundary for those on the shore).

Ports: a port is a group of ferry terminals mapped in OpenStreetMap within 1 km of each other (a harbour is mapped as many berths). The name is the nearest settlement. The number of terminals shows how closely the harbour is mapped, not how large it is or how many ferries call.

Fires: the count covers EFFIS burnt areas (roughly 30 hectares and above) whose reference point lies in a municipality of the area, with dates from 23 Mar 2016 to 12 Sept 2026. Natura 2000: each site is counted once, even when it overlaps several municipalities.

Zone prices: the lowest and highest value among the 2021 objective-system zones whose reference point lies in the area. They are tax values, not market prices.

See also

Sources

Every figure on this page comes from the sources below, with the date each was updated.

Page updated .