Category: Extremes affecting India

Heat wave occuring from October 17 2025 to October 26 2025 at 23.5°N 74.0°E

Download data: JSON

Event type: Heat wave

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

  • India

Duration: 10 days

Time span: October 17 2025 to October 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 29.0 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 30.4 °C

Event center: 23.5°N 74.0°E

Area affected: 51054 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-17_to_2025-Oct-26_74.0_23.5

Heat wave occuring from October 10 2025 to October 24 2025 at 17.0°N 73.5°E

Download data: JSON

Event type: Heat wave

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

  • India

Duration: 15 days

Time span: October 10 2025 to October 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 31.1 °C

Event center: 17.0°N 73.5°E

Area affected: 124447 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-10_to_2025-Oct-24_73.5_17.0

Heat wave occuring from October 03 2025 to October 10 2025 at 23.5°N 94.0°E

Download data: JSON

Event type: Heat wave

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

  • India
  • Myanmar

Duration: 8 days

Time span: October 03 2025 to October 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 29.5 °C

Event center: 23.5°N 94.0°E

Area affected: 59475 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-03_to_2025-Oct-10_94.0_23.5

Cold spell occuring from September 23 2025 to October 20 2025 at 32.0°N 78.5°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • China
  • India
  • Nepal
  • Pakistan

Duration: 28 days

Time span: September 23 2025 to October 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -13.8 °C
  • Minimum temperature: -21.8 °C

Event center: 32.0°N 78.5°E

Area affected: 2700912 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-23_to_2025-Oct-20_78.5_32.0

Heat wave occuring from September 11 2025 to September 16 2025 at 15.5°N 97.0°E

Download data: JSON

Event type: Heat wave

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

  • India
  • Myanmar
  • Thailand

Duration: 6 days

Time span: September 11 2025 to September 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 27.6 °C
  • Maximum temperature anomaly: 1.6 °C
  • Maximum temperature: 28.1 °C

Event center: 15.5°N 97.0°E

Area affected: 116501 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-11_to_2025-Sep-16_97.0_15.5

Cold spell occuring from September 11 2025 to September 13 2025 at 19.0°N 77.0°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 3 days

Time span: September 11 2025 to September 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 23.1 °C

Event center: 19.0°N 77.0°E

Area affected: 109218 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-11_to_2025-Sep-13_77.0_19.0

Cold spell occuring from September 02 2025 to September 16 2025 at 26.5°N 67.5°E

Download data: JSON

Event type: Cold spell

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

  • India
  • Pakistan

Duration: 15 days

Time span: September 02 2025 to September 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 26.6 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 21.6 °C

Event center: 26.5°N 67.5°E

Area affected: 609142 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-02_to_2025-Sep-16_67.5_26.5

Cold spell occuring from August 23 2025 to September 08 2025 at 34.0°N 77.0°E

Download data: JSON

Event type: Cold spell

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

  • China
  • India
  • Pakistan

Duration: 17 days

Time span: August 23 2025 to September 08 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 9.6 °C
  • Minimum temperature anomaly: -11.6 °C
  • Minimum temperature: -14.5 °C

Event center: 34.0°N 77.0°E

Area affected: 1124350 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-Aug-23_to_2025-Sep-08_77.0_34.0

Cold spell occuring from August 22 2025 to August 24 2025 at 22.5°N 85.5°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 3 days

Time span: August 22 2025 to August 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 25.3 °C
  • Minimum temperature anomaly: -2.5 °C
  • Minimum temperature: 23.7 °C

Event center: 22.5°N 85.5°E

Area affected: 100070 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-Aug-22_to_2025-Aug-24_85.5_22.5

Cold spell occuring from August 16 2025 to August 20 2025 at 16.0°N 77.0°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 5 days

Time span: August 16 2025 to August 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -3.9 °C
  • Minimum temperature: 22.3 °C

Event center: 16.0°N 77.0°E

Area affected: 231752 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-Aug-16_to_2025-Aug-20_77.0_16.0