Koules Fortress reflected in Heraklion’s Venetian harbour at dusk
Greece · Destination guide
Heraklion, Greece
CurrencyEuro (EUR)
Plug typesC, F · 230 VCheck adapter →
Time zoneEurope/Athens (UTC+3)
Emergency number112
Destination guide

A first look at Heraklion

Give Minoan history one day and Heraklion’s own streets another. Knossos, a city museum and the harbour make a workable weekend when you leave time for transport, meals and a weather alternative.

Explore our Heraklion guides

Weather guide

Weather in Heraklion

Hot, usually drier summers and mild to cool, wetter winters call for breathable clothes or removable warmer layers. Harbour wind and exposed archaeological paths can change how the temperature feels. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip.

21–25°C

Warm to hot days; exposed paving increases the need for shade and water.

October · representative month, not a forecast
Evenings
17–21°C
Rain
Showers possible
Daylight
Daylight changes through the season; leave time for the outdoor route.
See weather details →

What this means for packing

A packable rain jacket becomes more useful; confirm late-October timetables before planning an afternoon interior. For Heraklion, combine the city museums and Lions Square with a shorter outing around Koules and the Venetian harbour.

Choosing a season

The best-season badge suggests months for general sightseeing, using the typical daytime temperatures and rainfall in our monthly guides. Beach holidays, festivals, winter sports and northern lights trips may suit different dates.

Climate methodology

Clothing planning bands use the calculated mean daily maximum (22.81°C) and minimum (19.45°C), rounded then expanded by 2°C each way. These are outfit prompts, not forecast limits or confidence intervals. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip. Mean monthly precipitation is 47.44 mm, with 9.4 model days of at least 1 mm; precipitation includes water-equivalent snowfall. Complete daily records were checked before averaging all thirty years.

Reviewed 2026-10-09

NASA POWER MERRA-2 daily gridded data, averaged 1991–2020 · NASA POWER: daily data methodology · Heraklion official visitor information · Heraklion local transport · Knossos official seasonal access and tickets

About the climate in Heraklion

Hot, usually drier summers and mild to cool, wetter winters call for breathable clothes or removable warmer layers. Harbour wind and exposed archaeological paths can change how the temperature feels. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip.

Packing guide

What to wear in Heraklion in August.

An example packing list for Heraklion in August

Use this as a starting point and choose what suits your plans. Packtricia tailors your list and quantities to your trip length, weather and preferences.

Clothing

  • Underwear
  • Bras (if worn)
  • Socks
  • Sleepwear
  • T-shirts or lightweight shirts
  • Trousers
  • Shorts (if suited to your outings)
  • Skirt or dress (if worn)
  • Light sweater or cardigan
  • Hooded waterproof jacket
  • Comfortable walking shoes

Toiletries

  • Toothbrush
  • Toothpaste
  • Shampoo
  • Conditioner
  • Body wash or soap
  • Deodorant
  • Skincare products
  • Sunscreen
  • Hairbrush or comb
  • Shaving supplies (if used)
  • Menstrual products (if needed)
  • Contact lens solution (if used)

Essentials

  • Passport or accepted travel ID
  • Travel tickets and booking confirmations
  • Wallet and payment cards
  • Phone
  • Charging cable and charger
  • Travel adapter (if needed)
  • Medication (if needed)
  • Glasses or contact lenses (if used)
  • Refillable water bottle
  • Day bag
  • Backup cash
  • Power bank
  • Sunglasses
  • Water-resistant pouch for phone and documents
Monthly weather and packing notes

Sweaty walking clothes and a dry evening layer are a useful pair; museum air conditioning can feel cool. For Heraklion, combine the city museums and Lions Square with a shorter outing around Koules and the Venetian harbour.

Daytime
26–30°C
Evenings
22–26°C
Rain
Usually dry; occasional showers
Daylight
Long summer days; use shade for the hottest afternoon stretch.
Packing style
Breathable clothes, sun protection and a light evening layer

Clothing planning bands use the calculated mean daily maximum (27.75°C) and minimum (24.07°C), rounded then expanded by 2°C each way. These are outfit prompts, not forecast limits or confidence intervals. Monthly values are calculated from NASA POWER MERRA-2 gridded daily data for 1991–2020 at the city coordinates. They represent a regional model cell, not a city weather station. Street shade, coastal exposure, elevation and urban warmth can differ. Climate averages do not predict an individual trip. Mean monthly precipitation is 3.61 mm, with 1.1 model days of at least 1 mm; precipitation includes water-equivalent snowfall. Complete daily records were checked before averaging all thirty years.

Outfit ideas for your outings

August around the city museums and Lions Square

  • Breathable T-shirt or light linen shirt
  • Removable light knit
  • Comfortable long trousers
  • Comfortable closed walking shoes with a grippy sole
  • Packable hooded waterproof jacket
  • Small bag and clothing suitable for the actual museum or church dress rules

An exposed outing around Koules and the Venetian harbour

  • Breathable T-shirt or light linen shirt
  • Removable light knit
  • Comfortable closed walking shoes with a grippy sole
  • Packable hooded waterproof jacket
  • Carry water and allow room to store a removed layer
  • Avoid slippery harbour edges in poor weather

A slower stop at bougatsa near the Morosini Fountain

  • Breathable T-shirt or light linen shirt
  • Removable knit
  • Comfortable trousers or skirt
  • Closed walking shoes
  • Small bag for the outer jacket

What to leave behind

  • Stiff unworn shoes: test them before a day on old paving, riverside paths or hill steps.
  • Only light summer clothes: keep a warmer layer and rain protection for a cooler wet day.
  • A Knossos ticket assumed to include every museum: check separate admissions and selected tour add-ons.

Reviewed 2026-10-09

NASA POWER MERRA-2 daily gridded data, averaged 1991–2020 · NASA POWER: daily data methodology · Heraklion official visitor information · Heraklion local transport · Knossos official seasonal access and tickets

Transport guide

Getting around Heraklion

Use the Heraklion Urban Bus app for city routes, available arrivals and mobile tickets. Check the fare area and the exact bus for an outing such as Knossos; regional coaches are a separate network.

Check the operator’s current service notices and ticket instructions before travelling.

Practical essentials

Language and calling code

Language
Greek
Calling code
+30
Useful essentials for Heraklion
  • Broken-in walking shoes with seasonal grip
  • Removable mid-layer
  • Hooded rain shell or weather-resistant winter coat
  • Small zipped day bag
  • Type C / F adapter if needed
  • Saved attraction bookings and local transport details

Do you need a visa?

Check travel-document and visa requirements for your passport, destination and transit stops.

Check your requirements on TravelDoc

Use the checker as a starting point, then confirm requirements with the relevant government or embassy before travelling.

Things to do in Heraklion

Find a guided walk or an attraction visit to fit around your plans in Heraklion.

Stay connected

Mobile data for your trip. Check what your current plan includes for roaming. If you need another option for maps, messages and booking details, compare NXTL eSIM coverage and rates. Check that your phone supports eSIM and is unlocked, and check coverage for every stop. Download important maps and confirmations for offline use too.