Greece will face intense heat on Tuesday, with heatwave conditions expected across much of the country. High thermal stress will affect central, eastern, and northern inland regions in particular, where extreme heat index values may occur. Visitors and residents are advised to take precautions during peak daytime hours.

Temperature Forecast:

  • Western Macedonia: 18°C to 37–38°C
  • Rest of Macedonia and Thrace: 20°C to 38–40°C, locally up to 41°C
  • Thessaly: 22°C to 40–42°C, possibly reaching 43°C locally
  • Western Greece: 22°C to 38–39°C, locally up to 40°C
  • Remaining mainland areas: 25°C to 39–41°C, locally up to 42°C
  • Ionian Islands: 20°C to 36–37°C
  • Aegean Islands and Crete: 22°C to 36–38°C, locally up to 39°C
  • Eastern Aegean Islands: up to 40–41°C in some areas

These temperatures represent high to extreme levels of heat stress, especially in urban and inland areas. Extra care should be taken when outdoors, and hydration is essential.

Winds:

  • Northern Aegean: Light southerly winds at 2–4 Beaufort
  • Rest of the Aegean: Westerly to northwesterly winds at 3–5 Beaufort
  • Ionian Sea: Westerly winds at 3–4 Beaufort

Regional Outlook:

  • Athens & Attica Region:
    Sunny and extremely hot. Winds will be light and variable, turning southerly during the afternoon at up to 3 Beaufort. Temperatures will range from 28°C in the morning to 38–39°C in the city, possibly reaching 40°C in parts of the region.
  • Thessaloniki:
    Mostly sunny with some clouds during the hottest hours of the day. Winds from the southeast at 2–3 Beaufort. Temperatures will range from 26°C to 37–38°C.

Advice for Visitors:
Those travelling or vacationing in Greece should avoid outdoor activity during midday and early afternoon, particularly in areas away from the coast where temperatures will be more extreme. Coastal areas may offer some relief due to sea breezes, but the heat remains significant throughout the day.

Light clothing, regular hydration, and sun protection are highly recommended. The risk of wildfires is also elevated due to the heat and dry conditions, so exercise caution when in or near forested area.