Category: Heat waves affecting Svalbard and Jan Mayen

Heat wave occuring from January 08 2026 to February 05 2026 at 58.0°N 142.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Russian Federation
  • Svalbard and Jan Mayen
  • United States

Duration: 29 days

Time span: January 08 2026 to February 05 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 11.4 °C
  • Mean temperature: -10.1 °C
  • Maximum temperature anomaly: 32.3 °C
  • Maximum temperature: 17.2 °C

Event center: 58.0°N 142.5°E

Area affected: 11950817 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-Jan-08_to_2026-Feb-05_142.5_58.0

Heat wave occuring from November 06 2025 to November 09 2025 at 78.0°N 38.0°E

Download data: JSON

Event type: Heat wave

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

  • Svalbard and Jan Mayen

Duration: 4 days

Time span: November 06 2025 to November 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: 6.7 °C
  • Mean temperature: 0.4 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 1.9 °C

Event center: 78.0°N 38.0°E

Area affected: 98814 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-Nov-06_to_2025-Nov-09_38.0_78.0

Heat wave occuring from June 11 2024 to July 05 2024 at 80.0°N 13.5°E

Download data: JSON

Event type: Heat wave

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

  • Finland
  • Greenland
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden

Duration: 25 days

Time span: June 11 2024 to July 05 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 6.6 °C
  • Maximum temperature anomaly: 9.2 °C
  • Maximum temperature: 19.1 °C

Event center: 80.0°N 13.5°E

Area affected: 1851783 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_2024-Jun-11_to_2024-Jul-05_13.5_80.0

Heat wave occuring from May 02 2024 to May 14 2024 at 80.0°N 90.0°E

Download data: JSON

Event type: Heat wave

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

  • Greenland
  • Russian Federation
  • Svalbard and Jan Mayen

Duration: 13 days

Time span: May 02 2024 to May 14 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: -3.4 °C
  • Maximum temperature anomaly: 9.6 °C
  • Maximum temperature: 4.5 °C

Event center: 80.0°N 90.0°E

Area affected: 1451744 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_2024-May-02_to_2024-May-14_90.0_80.0

Heat wave occuring from April 19 2024 to May 03 2024 at 81.5°N 313.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland
  • Russian Federation
  • Svalbard and Jan Mayen

Duration: 15 days

Time span: April 19 2024 to May 03 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 7.6 °C
  • Mean temperature: -2.3 °C
  • Maximum temperature anomaly: 14.2 °C
  • Maximum temperature: 4.3 °C

Event center: 80.5°N 21.0°E

Area affected: 4514723 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_2024-Apr-19_to_2024-May-03_313.5_81.5

Heat wave occuring from March 03 2024 to March 09 2024 at 78.0°N 11.5°E

Download data: JSON

Event type: Heat wave

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

  • Svalbard and Jan Mayen

Duration: 7 days

Time span: March 03 2024 to March 09 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 9.1 °C
  • Mean temperature: -0.8 °C
  • Maximum temperature anomaly: 13.2 °C
  • Maximum temperature: 2.9 °C

Event center: 78.0°N 11.5°E

Area affected: 52148 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_2024-Mar-03_to_2024-Mar-09_11.5_78.0

Heat wave occuring from February 09 2024 to February 22 2024 at 87.0°N 65.5°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation
  • Svalbard and Jan Mayen

Duration: 14 days

Time span: February 09 2024 to February 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 13.3 °C
  • Mean temperature: -9.6 °C
  • Maximum temperature anomaly: 20.9 °C
  • Maximum temperature: -0.4 °C

Event center: 87.0°N 65.5°E

Area affected: 1855040 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_2024-Feb-09_to_2024-Feb-22_65.5_87.0

Heat wave occuring from January 23 2024 to January 28 2024 at 79.5°N 15.0°E

Download data: JSON

Event type: Heat wave

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

  • Svalbard and Jan Mayen

Duration: 6 days

Time span: January 23 2024 to January 28 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 10.6 °C
  • Mean temperature: -0.3 °C
  • Maximum temperature anomaly: 18.6 °C
  • Maximum temperature: 3.5 °C

Event center: 79.5°N 15.0°E

Area affected: 188524 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_2024-Jan-23_to_2024-Jan-28_15.0_79.5

Heat wave occuring from December 26 2023 to December 31 2023 at 80.0°N 21.5°E

Download data: JSON

Event type: Heat wave

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

  • Svalbard and Jan Mayen

Duration: 6 days

Time span: December 26 2023 to December 31 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 9.3 °C
  • Mean temperature: -1.2 °C
  • Maximum temperature anomaly: 14.1 °C
  • Maximum temperature: 2.4 °C

Event center: 80.0°N 21.5°E

Area affected: 210624 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_2023-Dec-26_to_2023-Dec-31_21.5_80.0

Heat wave occuring from December 13 2023 to December 18 2023 at 79.0°N 15.5°E

Download data: JSON

Event type: Heat wave

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

  • Svalbard and Jan Mayen

Duration: 6 days

Time span: December 13 2023 to December 18 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 9.5 °C
  • Mean temperature: -2.7 °C
  • Maximum temperature anomaly: 12.0 °C
  • Maximum temperature: 2.3 °C

Event center: 79.0°N 15.5°E

Area affected: 100478 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_2023-Dec-13_to_2023-Dec-18_15.5_79.0