Category: Heat waves affecting Norway

Download data: JSON

Event type: Heat wave

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

• Norway
• Sweden

Duration: 6 days

Time span: October 10 2025 to October 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.7 °C
• Mean temperature: 10.3 °C
• Maximum temperature anomaly: 6.7 °C
• Maximum temperature: 14.4 °C

Event center: 61.0°N 9.0°E

Area affected: 91298 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-Oct-10_to_2025-Oct-15_9.0_61.0

Download data: JSON

Event type: Heat wave

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

• Norway
• Sweden

Duration: 5 days

Time span: June 13 2025 to June 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.4 °C
• Mean temperature: 14.0 °C
• Maximum temperature anomaly: 9.6 °C
• Maximum temperature: 19.6 °C

Event center: 63.5°N 13.0°E

Area affected: 338440 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-Jun-13_to_2025-Jun-17_13.0_63.5

Download data: JSON

Event type: Heat wave

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

• Norway
• Sweden

Duration: 5 days

Time span: December 25 2024 to December 29 2024

Statistics over entire affected area:

• Mean temperature anomaly: 7.0 °C
• Mean temperature: 6.2 °C
• Maximum temperature anomaly: 10.1 °C
• Maximum temperature: 8.3 °C

Event center: 58.5°N 14.0°E

Area affected: 124625 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-Dec-25_to_2024-Dec-29_14.0_58.5

Download data: JSON

Event type: Heat wave

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

• Norway
• Sweden

Duration: 4 days

Time span: November 29 2024 to December 02 2024

Statistics over entire affected area:

• Mean temperature anomaly: 5.8 °C
• Mean temperature: 6.2 °C
• Maximum temperature anomaly: 11.4 °C
• Maximum temperature: 10.8 °C

Event center: 61.5°N 8.5°E

Area affected: 112924 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-Nov-29_to_2024-Dec-02_8.5_61.5

Download data: JSON

Event type: Heat wave

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

• Norway
• Sweden

Duration: 6 days

Time span: September 17 2024 to September 22 2024

Statistics over entire affected area:

• Mean temperature anomaly: 4.9 °C
• Mean temperature: 11.0 °C
• Maximum temperature anomaly: 7.5 °C
• Maximum temperature: 13.4 °C

Event center: 60.0°N 7.5°E

Area affected: 94580 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-Sep-17_to_2024-Sep-22_7.5_60.0