Category: Extremes affecting India

Heat wave occuring from August 11 2025 to August 30 2025 at 28.0°N 87.0°E

Download data: JSON

Event type: Heat wave

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

  • Bangladesh
  • Bhutan
  • China
  • India
  • Nepal

Duration: 20 days

Time span: August 11 2025 to August 30 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 14.8 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 32.2 °C

Event center: 28.0°N 87.0°E

Area affected: 383708 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-Aug-11_to_2025-Aug-30_87.0_28.0

Cold spell occuring from August 10 2025 to August 15 2025 at 15.0°N 77.5°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 6 days

Time span: August 10 2025 to August 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 24.9 °C
  • Minimum temperature anomaly: -4.5 °C
  • Minimum temperature: 22.2 °C

Event center: 15.0°N 77.5°E

Area affected: 122339 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-10_to_2025-Aug-15_77.5_15.0

Cold spell occuring from August 10 2025 to August 14 2025 at 12.5°N 74.5°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 10 2025 to August 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -0.8 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -1.2 °C
  • Minimum temperature: 24.5 °C

Event center: 12.5°N 74.5°E

Area affected: 172948 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-10_to_2025-Aug-14_74.5_12.5

Heat wave occuring from August 07 2025 to August 26 2025 at 25.5°N 62.0°E

Download data: JSON

Event type: Heat wave

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

  • India
  • Iran, Islamic Republic of
  • Pakistan

Duration: 20 days

Time span: August 07 2025 to August 26 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 31.4 °C
  • Maximum temperature anomaly: 4.1 °C
  • Maximum temperature: 35.5 °C

Event center: 25.5°N 62.0°E

Area affected: 240841 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-Aug-07_to_2025-Aug-26_62.0_25.5

Cold spell occuring from August 03 2025 to August 06 2025 at 28.0°N 82.0°E

Download data: JSON

Event type: Cold spell

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

  • India
  • Nepal

Duration: 4 days

Time span: August 03 2025 to August 06 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 26.8 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: 21.7 °C

Event center: 28.0°N 82.0°E

Area affected: 126531 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-03_to_2025-Aug-06_82.0_28.0

Heat wave occuring from July 16 2025 to July 20 2025 at 20.0°N 73.5°E

Download data: JSON

Event type: Heat wave

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

  • India

Duration: 5 days

Time span: July 16 2025 to July 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 26.4 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 29.1 °C

Event center: 20.0°N 73.5°E

Area affected: 73164 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-Jul-16_to_2025-Jul-20_73.5_20.0

Cold spell occuring from July 13 2025 to July 20 2025 at 28.0°N 73.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • India
  • Pakistan

Duration: 8 days

Time span: July 13 2025 to July 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 27.8 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 20.8 °C

Event center: 28.0°N 73.0°E

Area affected: 221063 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-Jul-13_to_2025-Jul-20_73.0_28.0

Cold spell occuring from June 27 2025 to July 10 2025 at 21.0°N 84.5°E

Download data: JSON

Event type: Cold spell

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

  • Bangladesh
  • India

Duration: 14 days

Time span: June 27 2025 to July 10 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 25.2 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: 20.8 °C

Event center: 21.0°N 84.5°E

Area affected: 819796 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-27_to_2025-Jul-10_84.5_21.0

Cold spell occuring from June 17 2025 to June 20 2025 at 23.0°N 88.0°E

Download data: JSON

Event type: Cold spell

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

  • India

Duration: 4 days

Time span: June 17 2025 to June 20 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: 23.5 °C

Event center: 23.0°N 88.0°E

Area affected: 73748 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-17_to_2025-Jun-20_88.0_23.0

Heat wave occuring from June 15 2025 to July 03 2025 at 14.5°N 72.0°E

Download data: JSON

Event type: Heat wave

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

  • India

Duration: 19 days

Time span: June 15 2025 to July 03 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 28.5 °C
  • Maximum temperature anomaly: 1.7 °C
  • Maximum temperature: 29.1 °C

Event center: 14.5°N 72.0°E

Area affected: 266938 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-Jun-15_to_2025-Jul-03_72.0_14.5