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: 5 days

Time span: May 24 2025 to May 28 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.5 °C
• Mean temperature: 8.9 °C
• Maximum temperature anomaly: 8.9 °C
• Maximum temperature: 25.5 °C

Event center: 38.0°N 87.5°E

Area affected: 105161 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-May-24_to_2025-May-28_87.5_38.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 6 days

Time span: May 11 2025 to May 16 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.7 °C
• Mean temperature: 25.4 °C
• Maximum temperature anomaly: 8.4 °C
• Maximum temperature: 30.7 °C

Event center: 35.0°N 113.5°E

Area affected: 75830 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-May-11_to_2025-May-16_113.5_35.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 6 days

Time span: May 08 2025 to May 13 2025

Statistics over entire affected area:

• Mean temperature anomaly: 2.9 °C
• Mean temperature: 10.1 °C
• Maximum temperature anomaly: 4.5 °C
• Maximum temperature: 21.2 °C

Event center: 29.0°N 94.0°E

Area affected: 62307 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-May-08_to_2025-May-13_94.0_29.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 11 days

Time span: April 30 2025 to May 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: 1.3 °C
• Mean temperature: 28.7 °C
• Maximum temperature anomaly: 2.7 °C
• Maximum temperature: 30.4 °C

Event center: 15.0°N 109.5°E

Area affected: 309438 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-Apr-30_to_2025-May-10_109.5_15.0

Download data: JSON

Event type: Heat wave

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

• China

Duration: 3 days

Time span: April 30 2025 to May 02 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.7 °C
• Mean temperature: 25.2 °C
• Maximum temperature anomaly: 8.2 °C
• Maximum temperature: 28.4 °C

Event center: 32.5°N 111.5°E

Area affected: 67366 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-Apr-30_to_2025-May-02_111.5_32.5

Download data: JSON

Event type: Heat wave

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

• China

Duration: 4 days

Time span: April 30 2025 to May 03 2025

Statistics over entire affected area:

• Mean temperature anomaly: 5.4 °C
• Mean temperature: 23.2 °C
• Maximum temperature anomaly: 7.5 °C
• Maximum temperature: 29.0 °C

Event center: 33.0°N 107.5°E

Area affected: 52077 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-Apr-30_to_2025-May-03_107.5_33.0