Category: Weather Extremes – all events

Heat wave occuring from July 02 2026 to July 11 2026 at -4.0°S 305.5°E

Download data: JSON

Event type: Heat wave

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

  • Brazil

Duration: 10 days

Time span: July 02 2026 to July 11 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 29.2 °C

Event center: -4.0°S 305.5°E

Area affected: 357753 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jul-02_to_2026-Jul-11_305.5_-4.0

Heat wave occuring from July 02 2026 to July 10 2026 at 75.5°N 151.5°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 9 days

Time span: July 02 2026 to July 10 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 2.6 °C
  • Maximum temperature anomaly: 11.0 °C
  • Maximum temperature: 17.6 °C

Event center: 75.5°N 151.5°E

Area affected: 1331843 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jul-02_to_2026-Jul-10_151.5_75.5

Heat wave occuring from July 01 2026 to July 03 2026 at 51.0°N 34.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation
  • Ukraine

Duration: 3 days

Time span: July 01 2026 to July 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 24.2 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 25.9 °C

Event center: 51.0°N 34.0°E

Area affected: 100557 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2026-Jul-01_to_2026-Jul-03_34.0_51.0

Cold spell occuring from July 01 2026 to July 04 2026 at 61.5°N 147.0°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: July 01 2026 to July 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 6.0 °C
  • Minimum temperature anomaly: -10.2 °C
  • Minimum temperature: 1.2 °C

Event center: 61.5°N 147.0°E

Area affected: 81589 km$^2$



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2026-Jul-01_to_2026-Jul-04_147.0_61.5

Cold spell occuring from June 26 2026 to June 29 2026 at -5.0°S 32.0°E

Download data: JSON

Event type: Cold spell

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

  • Tanzania

Duration: 4 days

Time span: June 26 2026 to June 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -3.3 °C
  • Minimum temperature: 14.2 °C

Event center: -5.0°S 32.0°E

Area affected: 153777 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-Jun-26_to_2026-Jun-29_32.0_-5.0

Cold spell occuring from June 25 2026 to June 27 2026 at -66.5°S 140.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 3 days

Time span: June 25 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.3 °C
  • Mean temperature: -34.7 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: -46.8 °C

Event center: -66.5°S 140.0°E

Area affected: 62503 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-Jun-25_to_2026-Jun-27_140.0_-66.5

Cold spell occuring from June 25 2026 to June 27 2026 at 70.0°N 168.5°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: June 25 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: -0.0 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: -0.7 °C

Event center: 70.0°N 168.5°E

Area affected: 53754 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-Jun-25_to_2026-Jun-27_168.5_70.0

Heat wave occuring from June 25 2026 to June 27 2026 at -88.5°S 261.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 3 days

Time span: June 25 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 7.7 °C
  • Mean temperature: -44.6 °C
  • Maximum temperature anomaly: 9.2 °C
  • Maximum temperature: -36.4 °C

Event center: -88.5°S 261.0°E

Area affected: 53076 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-Jun-25_to_2026-Jun-27_261.0_-88.5

Heat wave occuring from June 25 2026 to June 28 2026 at 18.5°N 6.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Niger

Duration: 4 days

Time span: June 25 2026 to June 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 36.7 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 39.1 °C

Event center: 18.5°N 6.5°E

Area affected: 505495 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-Jun-25_to_2026-Jun-28_6.5_18.5

Cold spell occuring from June 24 2026 to June 27 2026 at 63.5°N 50.5°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: June 24 2026 to June 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.7 °C
  • Mean temperature: 8.1 °C
  • Minimum temperature anomaly: -10.5 °C
  • Minimum temperature: 3.9 °C

Event center: 63.5°N 50.5°E

Area affected: 53321 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-Jun-24_to_2026-Jun-27_50.5_63.5