Marina Bay, Singapore, 2015

Haze threat fades ahead of Singapore Grand Prix

2015 Singapore Grand Prix weather

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The air quality is improving in Singapore following fears haze could disrupt the running of this weekend’s race.

The haze is caused by fires in Sumatra and Borneo to the west of Singapore which have been set to clear land for palm oil plantations. Starting the fires is illegal, but nonetheless this presents a regular problem around this time of year. Regional weather patterns can also exacerbate the problem.

On Monday the Pollutant Standards Index in Singapore exceeded 200. This level which is described as “very unhealthy”, and the elderly, pregnant women and children are advised to do as little outdoor activity as possible when the air quality is this poor.

Since then conditions have gradually improved. At 6pm on Thursday the PSI range for Singapore was between 68 and 85, which is considered “moderate”. Eastward winds may further improve conditions over the coming days.

According to Singapore’s National Environement Agency, “The 24-hour PSI for the next 24 hours is expected to be in the high end of the Moderate range and the low end of the Unhealthy range.”

The weather pattern at the track will be typical for the region: daytime temperatures will peak at 30C and will only drop by a few degrees at nightfall, when the track action begins.

The risk of thunderstorms is always high but they tend to occur earlier in the day and the hot conditions means the track dries out quickly.

For more updates on the track conditions during each session keep an eye on F1 Fanatic Live and the F1 Fanatic Twitter account.

Location of Singapore

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2015 Singapore Grand Prix

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Keith Collantine
Lifelong motor sport fan Keith set up RaceFans in 2005 - when it was originally called F1 Fanatic. Having previously worked as a motoring...

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7 comments on “Haze threat fades ahead of Singapore Grand Prix”

  1. ColdFly F1 ( @coldfly ) (@)
    17th September 2015, 13:27

    At 6pm on Thursday the PSI range for Singapore was between 68 and 85

    Don’t tell me that Pirelli is responsible for this as well!

    1. lol…. speaking of that, are Pirelli going to force pressure/camber requirements for the rest of the year? Or was that just a Monza thing?

      1. They’ve increased the minimum pressure for the tyres in Singapore as well. 18 PSI at the front and 17 PSI at the rear.
        At Suzuka they will increase the minimum pressures even more, because of the high g-forces in the fast corners.

        It looks like they will do that for the rest of the season.

    2. @coldfly Anything to make my government not responsible :P

  2. @keithcollantine Borneo’s to the east of Singapore.

    Anyway there goes the chances of F1 piling political pressure on Indonesia (of which the capital is one that’s never touced by the annual haze) regarding the haze…….

    1. ColdFly F1 ( @coldfly ) (@)
      17th September 2015, 15:44

      Borneo is also to the west of Singapore (almost 40k KM distance though) ;-) @davidnotcoulthard

      1. https://en.wikipedia.org/wiki/Singapore#/media/File:Location_Singapore_ASEAN.svg

        My idea of Borneo is that 3-country island to the east of Singapore :)

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