El Niño conditions developing in June–July 2026, alongside a positive Indian Ocean Dipole and the Southwest Monsoon, are driving above-average temperatures and drier conditions across Singapore through October. Meteorological Service Singapore forecasts indicate daily maxima frequently reaching 32–34°C during this period, with occasional peaks near 35°C under reduced cloud cover, consistent with the market’s leading 32°C (38%) and 33°C (27.5%) outcomes. Short-range models for June 27 project thundery showers and highs near 33°C, aligning with climatological baselines of 31–32°C but elevated by the broader warming signal. Traders are weighting these moderate outcomes heavily given stable steering patterns and limited model spread, while lower probabilities for 34°C+ reflect the moderating influence of afternoon convection typical in equatorial regimes.