Author: WEXA

Heat wave occuring from October 11 2025 to October 14 2025 at 37.5°N 3.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria

Duration: 4 days

Time span: October 11 2025 to October 14 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 23.7 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 24.8 °C

Event center: 37.5°N 3.5°E

Area affected: 121964 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-11_to_2025-Oct-14_3.5_37.5

Heat wave occuring from October 11 2025 to October 19 2025 at -11.5°S 317.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 9 days

Time span: October 11 2025 to October 19 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 29.9 °C
  • Maximum temperature anomaly: 3.8 °C
  • Maximum temperature: 32.3 °C

Event center: -11.5°S 317.0°E

Area affected: 121467 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-11_to_2025-Oct-19_317.0_-11.5

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 10 2025 to October 13 2025 at 5.0°N 291.0°E

Download data: JSON

Event type: Heat wave

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

  • Colombia
  • Venezuela, Bolivarian Republic of

Duration: 4 days

Time span: October 10 2025 to October 13 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 29.7 °C

Event center: 5.0°N 291.0°E

Area affected: 122657 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-13_291.0_5.0

Heat wave occuring from October 10 2025 to October 15 2025 at 61.0°N 9.0°E

Download data: JSON

Event type: Heat wave

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

  • Norway
  • Sweden

Duration: 6 days

Time span: October 10 2025 to October 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 10.3 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 14.4 °C

Event center: 61.0°N 9.0°E

Area affected: 91298 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-15_9.0_61.0

Cold spell occuring from October 10 2025 to October 23 2025 at 19.0°N 249.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico

Duration: 14 days

Time span: October 10 2025 to October 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -3.8 °C
  • Minimum temperature: 21.7 °C

Event center: 19.0°N 249.5°E

Area affected: 489262 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-10_to_2025-Oct-23_249.5_19.0

Heat wave occuring from October 10 2025 to October 16 2025 at 6.0°N 111.0°E

Download data: JSON

Event type: Heat wave

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

  • Brunei Darussalam
  • Malaysia

Duration: 7 days

Time span: October 10 2025 to October 16 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 2.5 °C
  • Maximum temperature: 29.0 °C

Event center: 6.0°N 111.0°E

Area affected: 365873 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-16_111.0_6.0

Cold spell occuring from October 10 2025 to October 15 2025 at -15.0°S 212.0°E

Download data: JSON

Event type: Cold spell

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

  • French Polynesia

Duration: 6 days

Time span: October 10 2025 to October 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.0 °C
  • Mean temperature: 24.9 °C
  • Minimum temperature anomaly: -1.7 °C
  • Minimum temperature: 24.1 °C

Event center: -15.0°S 212.0°E

Area affected: 222137 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-10_to_2025-Oct-15_212.0_-15.0

Cold spell occuring from October 10 2025 to October 18 2025 at -9.0°S 194.0°E

Download data: JSON

Event type: Cold spell

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

  • Cook Islands

Duration: 9 days

Time span: October 10 2025 to October 18 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -1.7 °C
  • Minimum temperature: 24.8 °C

Event center: -9.0°S 194.0°E

Area affected: 622987 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-10_to_2025-Oct-18_194.0_-9.0

Heat wave occuring from October 09 2025 to October 11 2025 at 41.0°N 248.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 3 days

Time span: October 09 2025 to October 11 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 13.8 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 18.9 °C

Event center: 41.0°N 248.0°E

Area affected: 51353 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-09_to_2025-Oct-11_248.0_41.0