Category: Weather Extremes – all events

Heat wave occuring from August 06 2026 to August 10 2026 at 40.5°N 109.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Mongolia

Duration: 5 days

Time span: August 06 2026 to August 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 25.9 °C
  • Maximum temperature anomaly: 6.9 °C
  • Maximum temperature: 30.4 °C

Event center: 40.5°N 109.5°E

Area affected: 134864 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-Aug-06_to_2026-Aug-10_109.5_40.5

Cold spell occuring from August 06 2026 to August 08 2026 at 53.5°N 134.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 3 days

Time span: August 06 2026 to August 08 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: 11.0 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: 4.3 °C

Event center: 53.5°N 134.0°E

Area affected: 158311 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-Aug-06_to_2026-Aug-08_134.0_53.5

Heat wave occuring from August 05 2026 to August 09 2026 at 25.0°N 74.0°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: August 05 2026 to August 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 30.5 °C

Event center: 25.0°N 74.0°E

Area affected: 56263 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-Aug-05_to_2026-Aug-09_74.0_25.0

Heat wave occuring from August 04 2026 to August 16 2026 at -48.5°S 254.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 13 days

Time span: August 04 2026 to August 16 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: -1.3 °C
  • Maximum temperature anomaly: 19.4 °C
  • Maximum temperature: 13.4 °C

Event center: -48.5°S 254.5°E

Area affected: 9105623 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-Aug-04_to_2026-Aug-16_254.5_-48.5

Heat wave occuring from August 04 2026 to August 12 2026 at 78.5°N 249.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 9 days

Time span: August 04 2026 to August 12 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 2.2 °C
  • Maximum temperature anomaly: 11.2 °C
  • Maximum temperature: 15.3 °C

Event center: 78.5°N 249.5°E

Area affected: 531638 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-Aug-04_to_2026-Aug-12_249.5_78.5

Heat wave occuring from August 04 2026 to August 09 2026 at 3.0°N 18.0°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Congo
  • Congo DRC

Duration: 6 days

Time span: August 04 2026 to August 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 25.9 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 27.5 °C

Event center: 3.0°N 18.0°E

Area affected: 117148 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-Aug-04_to_2026-Aug-09_18.0_3.0

Cold spell occuring from August 04 2026 to August 08 2026 at -37.0°S 175.5°E

Download data: JSON

Event type: Cold spell

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

  • New Zealand

Duration: 5 days

Time span: August 04 2026 to August 08 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 10.7 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: -1.3 °C

Event center: -37.0°S 175.5°E

Area affected: 606827 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-Aug-04_to_2026-Aug-08_175.5_-37.0

Cold spell occuring from August 04 2026 to August 11 2026 at 36.5°N 69.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Pakistan

Duration: 8 days

Time span: August 04 2026 to August 11 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 22.1 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 7.9 °C

Event center: 36.5°N 69.0°E

Area affected: 183423 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-Aug-04_to_2026-Aug-11_69.0_36.5

Cold spell occuring from August 04 2026 to August 07 2026 at 61.5°N 149.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 4 days

Time span: August 04 2026 to August 07 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.7 °C
  • Mean temperature: 5.3 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: -0.5 °C

Event center: 61.5°N 149.0°E

Area affected: 436727 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-Aug-04_to_2026-Aug-07_149.0_61.5

Cold spell occuring from August 04 2026 to August 09 2026 at 28.5°N 100.0°E

Download data: JSON

Event type: Cold spell

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

  • China

Duration: 6 days

Time span: August 04 2026 to August 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 8.1 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 4.4 °C

Event center: 28.5°N 100.0°E

Area affected: 56557 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-Aug-04_to_2026-Aug-09_100.0_28.5