Category: Extremes affecting Iran, Islamic Republic of

Heat wave occuring from February 01 2026 to February 04 2026 at 35.5°N 62.0°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Iran, Islamic Republic of
  • Turkmenistan

Duration: 4 days

Time span: February 01 2026 to February 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 7.9 °C
  • Mean temperature: 12.5 °C
  • Maximum temperature anomaly: 12.4 °C
  • Maximum temperature: 18.1 °C

Event center: 35.5°N 62.0°E

Area affected: 174300 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_2026-Feb-01_to_2026-Feb-04_62.0_35.5

Cold spell occuring from January 22 2026 to January 31 2026 at 23.5°N 68.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • India
  • Iran, Islamic Republic of
  • Pakistan

Duration: 10 days

Time span: January 22 2026 to January 31 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 15.6 °C
  • Minimum temperature anomaly: -11.8 °C
  • Minimum temperature: -8.7 °C

Event center: 23.5°N 68.0°E

Area affected: 1277101 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_2026-Jan-22_to_2026-Jan-31_68.0_23.5

Cold spell occuring from January 18 2026 to January 24 2026 at 35.5°N 36.0°E

Download data: JSON

Event type: Cold spell

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

  • Iran, Islamic Republic of
  • Iraq
  • Lebanon
  • Saudi Arabia
  • Syrian Arab Republic
  • Türkiye

Duration: 7 days

Time span: January 18 2026 to January 24 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 3.8 °C
  • Minimum temperature anomaly: -9.5 °C
  • Minimum temperature: -12.9 °C

Event center: 35.5°N 36.0°E

Area affected: 457936 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_2026-Jan-18_to_2026-Jan-24_36.0_35.5

Heat wave occuring from December 28 2025 to December 30 2025 at 30.0°N 61.5°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Iran, Islamic Republic of
  • Pakistan

Duration: 3 days

Time span: December 28 2025 to December 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.8 °C
  • Mean temperature: 15.9 °C
  • Maximum temperature anomaly: 10.4 °C
  • Maximum temperature: 20.8 °C

Event center: 30.0°N 61.5°E

Area affected: 199410 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-28_to_2025-Dec-30_61.5_30.0

Cold spell occuring from December 18 2025 to December 27 2025 at 33.0°N 51.0°E

Download data: JSON

Event type: Cold spell

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

  • Iran, Islamic Republic of

Duration: 10 days

Time span: December 18 2025 to December 27 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.0 °C
  • Mean temperature: -0.7 °C
  • Minimum temperature anomaly: -13.0 °C
  • Minimum temperature: -15.2 °C

Event center: 33.0°N 51.0°E

Area affected: 215040 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-Dec-18_to_2025-Dec-27_51.0_33.0

Heat wave occuring from November 19 2025 to November 25 2025 at 26.0°N 55.5°E

Download data: JSON

Event type: Heat wave

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

  • Iran, Islamic Republic of

Duration: 7 days

Time span: November 19 2025 to November 25 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 28.2 °C

Event center: 26.0°N 55.5°E

Area affected: 66791 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-Nov-19_to_2025-Nov-25_55.5_26.0

Heat wave occuring from November 15 2025 to November 23 2025 at 27.5°N 52.5°E

Download data: JSON

Event type: Heat wave

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

  • Iran, Islamic Republic of
  • Iraq
  • Kuwait
  • Saudi Arabia

Duration: 9 days

Time span: November 15 2025 to November 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.4 °C
  • Mean temperature: 20.8 °C
  • Maximum temperature anomaly: 5.4 °C
  • Maximum temperature: 28.7 °C

Event center: 27.5°N 52.5°E

Area affected: 132100 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-Nov-15_to_2025-Nov-23_52.5_27.5

Cold spell occuring from November 04 2025 to November 09 2025 at 26.5°N 64.5°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Iran, Islamic Republic of
  • Pakistan

Duration: 6 days

Time span: November 04 2025 to November 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 15.9 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 11.4 °C

Event center: 26.5°N 64.5°E

Area affected: 128214 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-Nov-04_to_2025-Nov-09_64.5_26.5

Heat wave occuring from October 28 2025 to November 01 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):

  • Iran, Islamic Republic of

Duration: 5 days

Time span: October 28 2025 to November 01 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 12.7 °C
  • Maximum temperature anomaly: 4.1 °C
  • Maximum temperature: 15.3 °C

Event center: 33.0°N 50.0°E

Area affected: 57399 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-Oct-28_to_2025-Nov-01_50.0_33.0

Heat wave occuring from October 23 2025 to October 30 2025 at 36.0°N 51.5°E

Download data: JSON

Event type: Heat wave

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

  • Iran, Islamic Republic of

Duration: 8 days

Time span: October 23 2025 to October 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 17.3 °C
  • Maximum temperature anomaly: 6.4 °C
  • Maximum temperature: 23.1 °C

Event center: 36.0°N 51.5°E

Area affected: 60323 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-Oct-23_to_2025-Oct-30_51.5_36.0