Singapore GP faces weather chaos: FIA declares heat hazard, rain looms

The Marina Bay circuit has, over the years, proven to be one of the most humid venues on the F1 calendar. The race, which joined the F1 calendar in the 2008 season, has since been held at night due to the extreme heat that often affects the Marina Bay region during race weekends.

2025 is not expected to be an exception, and the FIA has swung into action to aid teams through the hot weather. In its recent announcement, it declared a heat hazard. This will mandate teams to install cooling systems for their respective drivers.

In another announcement, Race Director Rui Marques also stated that teams can close their garages during the weekend, due to the risk of rain, which is also expected to hit the track.

With these precautionary actions in place by the FIA, here is the weather forecast for the Singapore Grand Prix weekend.

Friday – When teams hit the track for both Free Practice 1 and Free Practice 2, the day is expected to feature a mix of thundery showers from late morning until mid-afternoon, with temperatures ranging between 31.0°C and cooling further to 29.0°C. Friday is also forecast to have a 20% chance of rain.

Saturday – Free Practice 3 and qualifying are forecast to take place under conditions with a low chance of showers, with temperatures around 31.0°C for FP3 and around 29.0°C for qualifying. The rain forecast for Saturday also stands at around 20%.

Sunday – The climax of the weekend carries a slight chance of showers and slightly breezy conditions. The temperature is forecast to be around 29.0°C. Race Sunday also has a 20% chance of rain, which is expected to dwindle further towards the end of the evening.

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