Heat wave occuring from December 08 2025 to December 21 2025 at 36.0°N 29.5°E

Download data: JSON

Event type: Heat wave

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

  • Egypt
  • Greece
  • Türkiye

Duration: 14 days

Time span: December 08 2025 to December 21 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 17.9 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 19.8 °C

Event center: 36.0°N 29.5°E

Area affected: 232757 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-Dec-08_to_2025-Dec-21_29.5_36.0

Cold spell occuring from October 07 2025 to October 16 2025 at 35.0°N 33.5°E

Download data: JSON

Event type: Cold spell

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

  • Cyprus
  • Greece
  • Lebanon
  • Syrian Arab Republic
  • Türkiye

Duration: 10 days

Time span: October 07 2025 to October 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 13.2 °C
  • Minimum temperature anomaly: -9.5 °C
  • Minimum temperature: 2.3 °C

Event center: 35.0°N 33.5°E

Area affected: 599231 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-Oct-07_to_2025-Oct-16_33.5_35.0

Heat wave occuring from September 27 2025 to November 04 2025 at 33.0°N 50.0°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Armenia
  • Azerbaijan
  • Georgia
  • Iran, Islamic Republic of
  • Iraq
  • Oman
  • Pakistan
  • Russian Federation
  • Saudi Arabia
  • Syrian Arab Republic
  • Türkiye
  • United Arab Emirates

Duration: 39 days

Time span: September 27 2025 to November 04 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 22.8 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: 32.7 °C

Event center: 33.0°N 50.0°E

Area affected: 2153300 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-Sep-27_to_2025-Nov-04_50.0_33.0

Cold spell occuring from September 19 2025 to September 27 2025 at 32.0°N 44.5°E

Download data: JSON

Event type: Cold spell

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

  • Armenia
  • Azerbaijan
  • Georgia
  • Iran, Islamic Republic of
  • Iraq
  • Kuwait
  • Russian Federation
  • Saudi Arabia
  • Turkmenistan
  • Türkiye

Duration: 9 days

Time span: September 19 2025 to September 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 19.8 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 0.2 °C

Event center: 32.0°N 44.5°E

Area affected: 913134 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-Sep-19_to_2025-Sep-27_44.5_32.0

Cold spell occuring from June 29 2025 to July 09 2025 at 40.5°N 39.0°E

Download data: JSON

Event type: Cold spell

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

  • Armenia
  • Azerbaijan
  • Georgia
  • Iran, Islamic Republic of
  • Iraq
  • Russian Federation
  • Saudi Arabia
  • Syrian Arab Republic
  • Türkiye

Duration: 11 days

Time span: June 29 2025 to July 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 21.1 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 7.1 °C

Event center: 40.5°N 39.0°E

Area affected: 760122 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-Jun-29_to_2025-Jul-09_39.0_40.5

Cold spell occuring from June 14 2025 to June 18 2025 at 43.5°N 41.0°E

Download data: JSON

Event type: Cold spell

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

  • Georgia
  • Russian Federation
  • Türkiye

Duration: 5 days

Time span: June 14 2025 to June 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 13.0 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 3.5 °C

Event center: 43.5°N 41.0°E

Area affected: 221688 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-Jun-14_to_2025-Jun-18_41.0_43.5

Cold spell occuring from May 30 2025 to June 02 2025 at 37.5°N 33.0°E

Download data: JSON

Event type: Cold spell

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

  • Türkiye

Duration: 4 days

Time span: May 30 2025 to June 02 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 13.4 °C
  • Minimum temperature anomaly: -5.8 °C
  • Minimum temperature: 8.4 °C

Event center: 37.5°N 33.0°E

Area affected: 53882 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-May-30_to_2025-Jun-02_33.0_37.5

Cold spell occuring from May 10 2025 to May 15 2025 at 42.0°N 33.5°E

Download data: JSON

Event type: Cold spell

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

  • Georgia
  • Türkiye

Duration: 6 days

Time span: May 10 2025 to May 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 10.1 °C
  • Minimum temperature anomaly: -6.5 °C
  • Minimum temperature: 3.7 °C

Event center: 42.0°N 33.5°E

Area affected: 200246 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-May-10_to_2025-May-15_33.5_42.0

Heat wave occuring from May 05 2025 to May 10 2025 at 40.5°N 29.0°E

Download data: JSON

Event type: Heat wave

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

  • Bulgaria
  • Greece
  • Türkiye

Duration: 6 days

Time span: May 05 2025 to May 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 20.0 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 24.3 °C

Event center: 40.5°N 29.0°E

Area affected: 137328 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-May-05_to_2025-May-10_29.0_40.5

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