Singapore Climate Report 2025: Wettest March; Hottest June and November Ever on Record

Why It Matters

The record heat and rainfall underscore urgent adaptation needs, prompting costly infrastructure upgrades and influencing tourism, labor productivity, and public‑health strategies across Singapore.

Key Takeaways

• March 2025 recorded Singapore's wettest month on record.
• June and November 2025 were the hottest months ever.
• Wet bulb temperature hit 35°C, 29 heat‑stress days recorded.
• Sentosa deploying “cool nodes” and “cool zones” to mitigate heat.
• Government targets 2026 for enhanced climate adaptation and forecasting.

Summary

Singapore’s 2025 climate report highlighted unprecedented extremes, with March becoming the wettest month on record and June and November registering the highest temperatures ever observed in the city‑state. The Meteorological Service attributed the early‑year deluge to La Niña conditions and three northeast monsoon surges, while the second half of the year saw sustained heat well above the 30‑year monthly averages, making 2025 the eighth warmest year since 1929.

Rainfall in January and March more than doubled the 30‑year averages, with March accumulating over 612 mm and a single January day delivering 242 mm. Temperature spikes pushed the wet‑bulb index to a record 35 °C in October, and the island experienced 29 days of severe heat stress. Wind gusts peaked at 83 km/h on Samaka Island, underscoring the breadth of the extremes.

In response, Sentosa launched “cool nodes” and larger “cool zones”—features such as reflective pavement paints, misting systems, and micro‑forests designed to lower perceived temperatures by up to 10 °C. Over three‑quarters of visitors praised the first cool node at Saloso Beach. Meanwhile, the Ministry of Sustainability and the Environment earmarked 2026 for a comprehensive climate‑adaptation push, bolstering forecasting, seasonal predictions, and heat‑resilience research through the CCRS and CHORUS programs. The Singapore Institute of International Affairs warned that an El Niño‑driven year could bring earlier haze, wildfires, and intensified heat waves.

These developments signal a shift for businesses, tourism operators, and urban planners: infrastructure must integrate passive cooling, heat‑stress monitoring, and real‑time weather intelligence to safeguard public health and maintain economic activity amid a warming climate.

Original Description

Singapore registered several new records in rainfall and temperatures in 2025. It was the wettest March ever and also the hottest June and November ever. Rachel Teng has more from the Met Service report.