Author: WEXA

Heat wave occuring from February 26 2026 to March 12 2026 at -2.0°S 139.5°E

Download data: JSON

Event type: Heat wave

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

  • Indonesia
  • Papua New Guinea

Duration: 15 days

Time span: February 26 2026 to March 12 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 28.2 °C
  • Maximum temperature anomaly: 2.7 °C
  • Maximum temperature: 30.0 °C

Event center: -2.0°S 139.5°E

Area affected: 488077 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-Feb-26_to_2026-Mar-12_139.5_-2.0

Heat wave occuring from February 25 2026 to March 03 2026 at 41.5°N 127.5°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Korea, Democratic People’s Republic of
  • Korea, Republic of

Duration: 7 days

Time span: February 25 2026 to March 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 5.9 °C
  • Mean temperature: 2.8 °C
  • Maximum temperature anomaly: 9.5 °C
  • Maximum temperature: 9.7 °C

Event center: 41.5°N 127.5°E

Area affected: 104560 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-Feb-25_to_2026-Mar-03_127.5_41.5

Heat wave occuring from February 25 2026 to March 14 2026 at 3.0°N 46.5°E

Download data: JSON

Event type: Heat wave

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

  • Somalia

Duration: 18 days

Time span: February 25 2026 to March 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 28.3 °C
  • Maximum temperature anomaly: 1.8 °C
  • Maximum temperature: 30.6 °C

Event center: 3.0°N 46.5°E

Area affected: 778000 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-Feb-25_to_2026-Mar-14_46.5_3.0

Heat wave occuring from February 25 2026 to March 01 2026 at 28.0°N 353.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco

Duration: 5 days

Time span: February 25 2026 to March 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 22.6 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 25.6 °C

Event center: 28.0°N 353.0°E

Area affected: 207080 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-Feb-25_to_2026-Mar-01_353.0_28.0

Heat wave occuring from February 25 2026 to March 04 2026 at 49.0°N 240.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 8 days

Time span: February 25 2026 to March 04 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.5 °C
  • Mean temperature: 4.3 °C
  • Maximum temperature anomaly: 9.1 °C
  • Maximum temperature: 7.0 °C

Event center: 49.0°N 240.5°E

Area affected: 64825 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-Feb-25_to_2026-Mar-04_240.5_49.0

Heat wave occuring from February 25 2026 to February 28 2026 at 41.5°N 140.5°E

Download data: JSON

Event type: Heat wave

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

  • Japan

Duration: 4 days

Time span: February 25 2026 to February 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 2.9 °C
  • Maximum temperature anomaly: 6.3 °C
  • Maximum temperature: 5.5 °C

Event center: 41.5°N 140.5°E

Area affected: 57038 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-Feb-25_to_2026-Feb-28_140.5_41.5

Heat wave occuring from February 25 2026 to March 01 2026 at -57.5°S 306.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 5 days

Time span: February 25 2026 to March 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 4.4 °C
  • Maximum temperature anomaly: 4.9 °C
  • Maximum temperature: 6.5 °C

Event center: -57.5°S 306.0°E

Area affected: 163128 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-Feb-25_to_2026-Mar-01_306.0_-57.5

Cold spell occuring from February 24 2026 to February 26 2026 at -69.5°S 52.5°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: February 24 2026 to February 26 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: -36.3 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: -40.4 °C

Event center: -69.5°S 52.5°E

Area affected: 50209 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-Feb-24_to_2026-Feb-26_52.5_-69.5

Cold spell occuring from February 24 2026 to March 09 2026 at 65.0°N 180.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 14 days

Time span: February 24 2026 to March 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -11.3 °C
  • Mean temperature: -31.0 °C
  • Minimum temperature anomaly: -18.7 °C
  • Minimum temperature: -39.1 °C

Event center: 65.0°N 180.0°E

Area affected: 302008 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-Feb-24_to_2026-Mar-09_180.0_65.0

Cold spell occuring from February 24 2026 to March 06 2026 at 13.0°N 345.5°E

Download data: JSON

Event type: Cold spell

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

  • Gambia
  • Guinea
  • Guinea-Bissau
  • Senegal

Duration: 11 days

Time span: February 24 2026 to March 06 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 15.3 °C

Event center: 13.0°N 345.5°E

Area affected: 484500 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-Feb-24_to_2026-Mar-06_345.5_13.0