A powerful heatwave is sweeping across Greece as of Monday, July 21, with temperatures soaring above 40°C (104°F) in many parts of the country.
Forecasts show a steady rise, with inland areas reaching 100–104°F (38–40°C) and locally up to 106°F (41°C) in Thessaly and Central Macedonia.
Meteorologists forecast the extreme heat to persist through Sunday, possibly peaking at 109°F (43°C). A drop in temperature is expected after July 26.
Forecast Through Thursday
Monday, July 21, 2025
- Mainland Greece: 100–104°F (38–40°C), with up to 106°F (41°C) in Thessaly and Central Macedonia
- Athens and Thessaloniki: Up to 100°F (38°C)
- Ionian Islands, Eastern Aegean, Dodecanese: 95–97°F (35–36°C)
Tuesday, July 22 & Wednesday, July 23, 2025
- Mainland Greece: 102–106°F (39–41°C), locally 108°F (42°C) in Central Macedonia, Eastern Central Greece, Eastern Peloponnese
- Thessaly: Up to 109°F (43°C)
- Athens and Thessaloniki: 102–104°F (39–40°C)
- Eastern Aegean & Dodecanese Islands: 99–102°F (37–39°C), possibly 104°F (40°C) on Wednesday
- Ionian Islands: 97–100°F (36–38°C)
Thursday, July 24, 2025
- Mainland Greece: 102–106°F ( 39–41°C), up to 108–109°F (42–43°C) in eastern parts
- Athens: 104–106°F (40–41°C)
- Thessaloniki: 102°F (39°C)
- Eastern Aegean & Dodecanese Islands: 100–104°F (38–40°C)
- Ionian Islands: 99–102°F (37–39°C)
Residents and visitors are strongly advised to stay hydrated, avoid outdoor activity during peak hours, and follow public health guidance during this prolonged heat event.
Work Restrictions amid Extreme Heat in Greece
In response to extreme temperatures and high thermal discomfort levels, Greece’s Ministry of Labor and Social Affairs has ordered a temporary suspension of certain outdoor work activities on Monday, from 12:00 p.m. to 5:00 p.m., in areas where dangerous heat conditions are forecast.
Affected regions include parts of:
Evros, Serres, Larissa, Viotia, Halkidiki, Imathia, Trikala, Fthiotida, Aetolia-Acarnania, the Ionian Islands, eastern Rhodes, and coastal zones of the Peloponnese.
The five-hour work ban covers manual outdoor labor such as construction, infrastructure projects, shipyard work, and deliveries made using two-wheeled vehicles. Delivery services—including those operated by digital platforms—must suspend operations involving motorcycles or scooters during restricted hours. Deliveries may continue only via air-conditioned vehicles or be limited to customer pick-up.
Violations of the suspension order may result in fines of up to €2,000 ($2.180). Employers are also encouraged to offer remote work options for high-risk employees wherever feasible.
Public Health Guidelines
The General Secretariat for Civil Protection is advising the public—especially vulnerable individuals—to take preventive measures during the heatwave:
- Stay indoors in cool, shaded, or air-conditioned spaces.
- Avoid crowded areas and strenuous physical activity, especially during peak heat hours.
- Wear light, breathable clothing and use sun protection, such as hats and sunglasses.
- Consume light meals rich in fruits and vegetables.
- Drink plenty of water and natural juices, and avoid alcohol and heavy, fatty foods.
Special attention should be paid to infants, young children, and the elderly, as they are especially at risk of heat-related illnesses.
High Alert Nationwide
On Sunday, the Ministry for Climate Crisis and Civil Protection convened an emergency meeting to coordinate the national response to the heatwave. Greece’s Fire Service, Hellenic Police (ELAS), Armed Forces, and Civil Protection units have been placed on high alert.
Regional and municipal authorities are activating local emergency protocols, which include the deployment of heavy machinery, water tankers, and volunteer teams.
Power grid operators DEDDIE (Hellenic Electricity Distribution Network Operator S.A.) and ADMIE (Independent Power Transmission Operator), along with the National Emergency Medical Service (EKAV), are also on standby to respond as needed.
