Category: Heat waves affecting China

Download data: JSON

Event type: Heat wave

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

• China

Duration: 10 days

Time span: October 26 2025 to November 04 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.1 °C
• Mean temperature: 6.4 °C
• Maximum temperature anomaly: 7.7 °C
• Maximum temperature: 14.2 °C

Event center: 43.0°N 87.0°E

Area affected: 227754 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-26_to_2025-Nov-04_87.0_43.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 28 days

Time span: October 26 2025 to November 22 2025

Statistics over entire affected area:

• Mean temperature anomaly: 6.8 °C
• Mean temperature: -3.6 °C
• Maximum temperature anomaly: 12.7 °C
• Maximum temperature: 7.5 °C

Event center: 32.0°N 92.5°E

Area affected: 529524 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-26_to_2025-Nov-22_92.5_32.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 7 days

Time span: October 17 2025 to October 23 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.5 °C
• Mean temperature: -3.3 °C
• Maximum temperature anomaly: 10.6 °C
• Maximum temperature: 5.0 °C

Event center: 34.0°N 94.5°E

Area affected: 468448 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-17_to_2025-Oct-23_94.5_34.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 5 days

Time span: September 30 2025 to October 04 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.3 °C
• Mean temperature: 5.0 °C
• Maximum temperature anomaly: 7.9 °C
• Maximum temperature: 19.8 °C

Event center: 39.0°N 96.0°E

Area affected: 82225 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-Sep-30_to_2025-Oct-04_96.0_39.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 6 days

Time span: September 28 2025 to October 03 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.6 °C
• Mean temperature: 18.6 °C
• Maximum temperature anomaly: 5.7 °C
• Maximum temperature: 23.5 °C

Event center: 39.5°N 76.5°E

Area affected: 80380 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-Sep-28_to_2025-Oct-03_76.5_39.5

Download data: JSON

Event type: Heat wave

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

• China

Duration: 5 days

Time span: September 23 2025 to September 27 2025

Statistics over entire affected area:

• Mean temperature anomaly: 3.7 °C
• Mean temperature: 11.5 °C
• Maximum temperature anomaly: 6.0 °C
• Maximum temperature: 18.8 °C

Event center: 34.0°N 103.5°E

Area affected: 177722 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-Sep-23_to_2025-Sep-27_103.5_34.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 11 days

Time span: September 08 2025 to September 18 2025

Statistics over entire affected area:

• Mean temperature anomaly: 4.7 °C
• Mean temperature: 21.0 °C
• Maximum temperature anomaly: 8.5 °C
• Maximum temperature: 30.5 °C

Event center: 36.5°N 104.5°E

Area affected: 644619 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-Sep-08_to_2025-Sep-18_104.5_36.5