Singapore Weather Forecast

Singapore's position just one degree north of the equator gives it a consistent tropical rainforest climate with remarkably stable temperatures, high humidity, and frequent rainfall throughout the year. The city-state experiences no true dry season, though the months from February to April tend to be drier. Temperatures hover between 25°C and 33°C year-round with minimal seasonal variation, and humidity rarely drops below 60%.

Afternoon thunderstorms are a signature feature of Singapore's weather, developing as the tropical sun heats the island and surrounding seas, triggering intense convection. These storms can produce heavy rainfall, vivid lightning, and localized flooding but typically pass within an hour. The northeast monsoon from December to early March brings more persistent rainfall, and Sumatra squalls — organized thunderstorm lines developing over the Strait of Malacca — can arrive in the early morning.

Singapore's urban heat island effect makes the city center noticeably warmer than outer areas and the surrounding sea. Air quality can be significantly impacted during the June-October period when transboundary haze from Indonesian forest fires drifts across the Strait of Malacca. Despite the small size of the island, microclimatic differences exist, with the central forested areas slightly cooler and more humid than the built-up coastal districts.