What does this research mean for the field?

Climatological heat stress has increased significantly across the Dakar 2026 Youth Olympic Games venues between 1991 and 2025, dictating that outdoor competitions are safest when scheduled before 09:00 or after 19:00 to avoid peak midday risks. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Characterize climatological heat risk during early November competition periods and develop an operational decision-support framework to guide outdoor event scheduling.

September 10, 2026ClimateOpen Access

Climate Services for Heat-Risk Management at the Dakar 2026 Youth Olympic Games: A Competition-Zone Assessment Using WBGT and UTCI

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Authors

MTMory Touré PNPapa Ngor Ndiaye IDIbrahima Diouf

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Overview

Climatological analysis reveals rising heat stress during peak midday hours across outdoor sports venues, highlighting the need for schedule adjustments to protect competing athletes.

Key Points

Characterize climatological heat risk during early November competition periods and develop an operational decision-support framework to guide outdoor event scheduling.
Extracted hourly ERA5 reanalysis data spanning 1991 to 2025 for the official competition window (31 October–13 November) across three host zones: Dakar, Diamniadio, and Saly.
Calculated Wet-Bulb Globe Temperature (WBGT) and the Universal Thermal Climate Index (UTCI) to assess multidecadal trends, diurnal cycles, and hourly threshold exceedance frequencies.
Heat stress increased significantly over 1991–2025, with 90th percentile WBGT trends rising between +0.33 and +0.47 °C decade⁻¹, alongside significant UTCI increases in Dakar and Diamniadio.
Identified a consistent spatial heat gradient (Saly > Diamniadio > Dakar), with peak thermal stress concentrated between 11:00 and 17:00 and peaking at 14:00–15:00.
A hierarchical decision-support framework determined that early mornings (before 09:00) and evenings (after 19:00) are optimal for outdoor events, whereas midday hours require mitigation or rescheduling.

Cite This Study

Touré et al. (2026) studied this question.

synapsesocial.com/papers/6aa27c0f58559d80afc75a9b https://doi.org/10.3390/cli14090189

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September 10, 2026ClimateOpen Access

Climate Services for Heat-Risk Management at the Dakar 2026 Youth Olympic Games: A Competition-Zone Assessment Using WBGT and UTCI

View Full Paper

Ask AI

Bookmark

Authors

MTMory Touré PNPapa Ngor Ndiaye IDIbrahima Diouf

Discussion

Member takes

Overview

Climatological analysis reveals rising heat stress during peak midday hours across outdoor sports venues, highlighting the need for schedule adjustments to protect competing athletes.

Key Points

Characterize climatological heat risk during early November competition periods and develop an operational decision-support framework to guide outdoor event scheduling.
Extracted hourly ERA5 reanalysis data spanning 1991 to 2025 for the official competition window (31 October–13 November) across three host zones: Dakar, Diamniadio, and Saly.
Calculated Wet-Bulb Globe Temperature (WBGT) and the Universal Thermal Climate Index (UTCI) to assess multidecadal trends, diurnal cycles, and hourly threshold exceedance frequencies.
Heat stress increased significantly over 1991–2025, with 90th percentile WBGT trends rising between +0.33 and +0.47 °C decade⁻¹, alongside significant UTCI increases in Dakar and Diamniadio.
Identified a consistent spatial heat gradient (Saly > Diamniadio > Dakar), with peak thermal stress concentrated between 11:00 and 17:00 and peaking at 14:00–15:00.
A hierarchical decision-support framework determined that early mornings (before 09:00) and evenings (after 19:00) are optimal for outdoor events, whereas midday hours require mitigation or rescheduling.

Cite This Study

Touré et al. (2026) studied this question.

synapsesocial.com/papers/6aa27c0f58559d80afc75a9b https://doi.org/10.3390/cli14090189

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