Category: Extremes affecting Greece

Cold spell occuring from April 28 2025 to May 04 2025 at 42.0°N 32.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece
  • Türkiye

Duration: 7 days

Time span: April 28 2025 to May 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 12.7 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 7.7 °C

Event center: 42.0°N 32.5°E

Area affected: 178015 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Apr-28_to_2025-May-04_32.5_42.0

Heat wave occuring from April 20 2025 to April 26 2025 at 37.0°N 23.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece

Duration: 7 days

Time span: April 20 2025 to April 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 17.8 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 18.4 °C

Event center: 37.0°N 23.5°E

Area affected: 70313 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Apr-20_to_2025-Apr-26_23.5_37.0

Cold spell occuring from April 06 2025 to April 18 2025 at 39.5°N 37.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Albania
  • Belarus
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Estonia
  • Georgia
  • Greece
  • Hungary
  • Iran, Islamic Republic of
  • Iraq
  • Italy
  • Jordan
  • Kazakhstan
  • Kuwait
  • Latvia
  • Lebanon
  • Lithuania
  • Moldova, Republic of
  • Montenegro
  • North Macedonia
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Syrian Arab Republic
  • Türkiye
  • Ukraine

Duration: 13 days

Time span: April 06 2025 to April 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: 3.6 °C
  • Minimum temperature anomaly: -14.9 °C
  • Minimum temperature: -9.7 °C

Event center: 39.5°N 37.5°E

Area affected: 4258242 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Apr-06_to_2025-Apr-18_37.5_39.5

Heat wave occuring from March 05 2025 to March 08 2025 at 35.5°N 32.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece
  • Türkiye

Duration: 4 days

Time span: March 05 2025 to March 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 17.1 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 18.3 °C

Event center: 35.5°N 32.5°E

Area affected: 101053 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Mar-05_to_2025-Mar-08_32.5_35.5

Cold spell occuring from February 16 2025 to March 04 2025 at 43.0°N 48.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Albania
  • Armenia
  • Azerbaijan
  • Bahrain
  • Bulgaria
  • Cyprus
  • Egypt
  • Georgia
  • Greece
  • Hungary
  • Iran, Islamic Republic of
  • Iraq
  • Israel
  • Jordan
  • Kazakhstan
  • Kuwait
  • Lebanon
  • Libya
  • Moldova, Republic of
  • Montenegro
  • North Macedonia
  • Qatar
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Syrian Arab Republic
  • Turkmenistan
  • Türkiye
  • Ukraine
  • United Arab Emirates
  • Uzbekistan

Duration: 17 days

Time span: February 16 2025 to March 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.8 °C
  • Mean temperature: 0.8 °C
  • Minimum temperature anomaly: -19.9 °C
  • Minimum temperature: -21.0 °C

Event center: 43.0°N 48.0°E

Area affected: 7275702 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2025-Feb-16_to_2025-Mar-04_48.0_43.0

Heat wave occuring from January 18 2025 to January 20 2025 at 40.0°N 19.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Albania
  • Greece

Duration: 3 days

Time span: January 18 2025 to January 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 14.4 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 15.9 °C

Event center: 40.0°N 19.5°E

Area affected: 60499 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2025-Jan-18_to_2025-Jan-20_19.5_40.0

Cold spell occuring from November 24 2024 to December 04 2024 at 39.5°N 36.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece
  • Türkiye

Duration: 11 days

Time span: November 24 2024 to December 04 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -6.6 °C
  • Mean temperature: 0.7 °C
  • Minimum temperature anomaly: -15.0 °C
  • Minimum temperature: -14.9 °C

Event center: 39.5°N 36.5°E

Area affected: 318463 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2024-Nov-24_to_2024-Dec-04_36.5_39.5

Heat wave occuring from October 29 2024 to November 04 2024 at 37.0°N 31.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece
  • Türkiye

Duration: 7 days

Time span: October 29 2024 to November 04 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 22.9 °C
  • Maximum temperature anomaly: 4.1 °C
  • Maximum temperature: 24.4 °C

Event center: 37.0°N 31.0°E

Area affected: 65189 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Oct-29_to_2024-Nov-04_31.0_37.0

Cold spell occuring from October 18 2024 to October 21 2024 at 43.0°N 27.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Bulgaria
  • Greece
  • Romania
  • Türkiye

Duration: 4 days

Time span: October 18 2024 to October 21 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 7.9 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 5.6 °C

Event center: 43.0°N 27.5°E

Area affected: 58895 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2024-Oct-18_to_2024-Oct-21_27.5_43.0

Heat wave occuring from September 23 2024 to September 30 2024 at 39.5°N 23.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Greece
  • Italy

Duration: 8 days

Time span: September 23 2024 to September 30 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 25.2 °C
  • Maximum temperature anomaly: 5.4 °C
  • Maximum temperature: 26.8 °C

Event center: 39.5°N 23.5°E

Area affected: 465837 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2024-Sep-23_to_2024-Sep-30_23.5_39.5