Category: Weather Extremes – all events

Cold spell occuring from May 30 2026 to June 09 2026 at -66.0°S 219.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 11 days

Time span: May 30 2026 to June 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -14.8 °C
  • Minimum temperature anomaly: -16.2 °C
  • Minimum temperature: -32.2 °C

Event center: -66.0°S 219.0°E

Area affected: 1292305 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-May-30_to_2026-Jun-09_219.0_-66.0

Cold spell occuring from May 30 2026 to June 14 2026 at 8.5°N 50.5°E

Download data: JSON

Event type: Cold spell

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

  • Somalia

Duration: 16 days

Time span: May 30 2026 to June 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 26.3 °C
  • Minimum temperature anomaly: -2.3 °C
  • Minimum temperature: 24.9 °C

Event center: 8.5°N 50.5°E

Area affected: 73393 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-May-30_to_2026-Jun-14_50.5_8.5

Heat wave occuring from May 30 2026 to June 21 2026 at 29.5°N 358.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco

Duration: 23 days

Time span: May 30 2026 to June 21 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 36.3 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 42.4 °C

Event center: 29.5°N 358.5°E

Area affected: 2113349 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-May-30_to_2026-Jun-21_358.5_29.5

Heat wave occuring from May 30 2026 to June 02 2026 at 34.5°N 263.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 4 days

Time span: May 30 2026 to June 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 30.1 °C

Event center: 34.5°N 263.5°E

Area affected: 115597 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-May-30_to_2026-Jun-02_263.5_34.5

Heat wave occuring from May 30 2026 to June 06 2026 at 14.0°N 351.0°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire
  • Guinea
  • Mali
  • Mauritania

Duration: 8 days

Time span: May 30 2026 to June 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 35.0 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 39.1 °C

Event center: 14.0°N 351.0°E

Area affected: 183388 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-May-30_to_2026-Jun-06_351.0_14.0

Heat wave occuring from May 29 2026 to June 06 2026 at 3.0°N 307.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • French Guiana
  • Suriname

Duration: 9 days

Time span: May 29 2026 to June 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 28.4 °C

Event center: 3.0°N 307.0°E

Area affected: 438645 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-May-29_to_2026-Jun-06_307.0_3.0

Heat wave occuring from May 29 2026 to June 19 2026 at 1.5°N 353.5°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Gabon
  • Nigeria

Duration: 22 days

Time span: May 29 2026 to June 19 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 26.8 °C
  • Maximum temperature anomaly: 2.1 °C
  • Maximum temperature: 27.8 °C

Event center: 1.5°N 353.5°E

Area affected: 1188691 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-May-29_to_2026-Jun-19_353.5_1.5

Cold spell occuring from May 29 2026 to May 31 2026 at 69.0°N 112.5°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: May 29 2026 to May 31 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: -4.0 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: -6.5 °C

Event center: 69.0°N 112.5°E

Area affected: 92685 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-May-29_to_2026-May-31_112.5_69.0

Cold spell occuring from May 29 2026 to June 05 2026 at 23.5°N 76.5°E

Download data: JSON

Event type: Cold spell

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

  • India
  • Nepal

Duration: 8 days

Time span: May 29 2026 to June 05 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 29.1 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 9.9 °C

Event center: 23.5°N 76.5°E

Area affected: 446083 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-May-29_to_2026-Jun-05_76.5_23.5

Cold spell occuring from May 29 2026 to June 02 2026 at 24.0°N 83.5°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: May 29 2026 to June 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 29.1 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 24.7 °C

Event center: 24.0°N 83.5°E

Area affected: 76896 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-May-29_to_2026-Jun-02_83.5_24.0