Category: Extremes affecting Indonesia

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 4 days

Time span: April 26 2026 to April 29 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.2 °C
• Mean temperature: 28.7 °C
• Maximum temperature anomaly: 1.8 °C
• Maximum temperature: 29.3 °C

Event center: -3.0°S 106.5°E

Area affected: 83352 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-Apr-26_to_2026-Apr-29_106.5_-3.0

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 12 days

Time span: April 07 2026 to April 18 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.2 °C
• Mean temperature: 28.0 °C
• Maximum temperature anomaly: 2.2 °C
• Maximum temperature: 29.1 °C

Event center: -3.0°S 135.5°E

Area affected: 176071 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-Apr-07_to_2026-Apr-18_135.5_-3.0

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 8 days

Time span: April 07 2026 to April 14 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.1 °C
• Mean temperature: 28.4 °C
• Maximum temperature anomaly: 2.0 °C
• Maximum temperature: 29.2 °C

Event center: -3.5°S 107.5°E

Area affected: 101734 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-Apr-07_to_2026-Apr-14_107.5_-3.5

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 24 days

Time span: April 07 2026 to April 30 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.2 °C
• Mean temperature: 28.6 °C
• Maximum temperature anomaly: 2.2 °C
• Maximum temperature: 29.7 °C

Event center: -6.0°S 91.0°E

Area affected: 3182711 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-Apr-07_to_2026-Apr-30_91.0_-6.0

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 8 days

Time span: March 19 2026 to March 26 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.1 °C
• Mean temperature: 28.0 °C
• Maximum temperature anomaly: 2.4 °C
• Maximum temperature: 29.3 °C

Event center: -1.0°S 135.0°E

Area affected: 55613 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-Mar-19_to_2026-Mar-26_135.0_-1.0

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 4 days

Time span: March 12 2026 to March 15 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.3 °C
• Mean temperature: 28.1 °C
• Maximum temperature anomaly: 2.3 °C
• Maximum temperature: 29.2 °C

Event center: -2.0°S 111.5°E

Area affected: 64817 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-Mar-12_to_2026-Mar-15_111.5_-2.0

Download data: JSON

Event type: Heat wave

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

• Indonesia

Duration: 7 days

Time span: March 07 2026 to March 13 2026

Statistics over entire affected area:

• Mean temperature anomaly: 1.4 °C
• Mean temperature: 27.8 °C
• Maximum temperature anomaly: 2.5 °C
• Maximum temperature: 29.0 °C

Event center: 0.0°N 102.0°E

Area affected: 98830 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-Mar-07_to_2026-Mar-13_102.0_0.0