Singapore Grand Prix 2025 is predicted to have challenging and unpredictable weather this weekend. The weather forecast in Singapore predicts heavy rain, soaring temperatures, and extreme humidity expected to disrupt F1 schedules at Marina Bay Street Circuit. Meanwhile, the practice sessions on Friday could be dominated by thundery showers—starting several hours before the cars even take to the track—leaving surfaces wet and slippery with temperatures hovering around 30°C and humidity at a punishing 80%. And it doesn’t end there. Read on to find out the Singapore weather from October 3 to 5, 2025.
How will extreme heat & thundery showers impact the Singapore Grand Prix 2025?
The extreme weather conditions are expected to continue for the F1 races on Saturday, with the heat index coming close to 39°C, which may push drivers and teams to their physical limits. Plus, the Singapore weather forecast on Saturday indicates the possibility of light rain showers in the morning and early afternoon. Although, it should dry up with only clouds for the key qualifying sessions.
Race day, scheduled for Sunday night (October 5), is projected to be slightly less turbulent but still far from ideal for comfort or strategy. Early morning and mid-afternoon scattered thunderstorms and rain showers are likely, but the final race itself should be dry and cloudy with temperatures lingering in the high 20s and humidity reaching up to 76%.
Overall, stormy weather, rain, and humidity may make both track conditions and driver concentration difficult during the Singapore Grand Prix 2025. Indeed, rain has historically played a wild car at Singapore’s F1 races and the threat of a tropical downpour rains constant throughout the weekend.
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