Malaysian Grand Prix weather forecast

Early forecasts indicate the Malaysian Grand Prix this weekend is likely to be affected by rain.

Over on the F1 Fanatic Forum ccolanto has been checking out the weather forecasts for Kuala Lumpur and thunderstorms are predicted throughout the weekend.

The chance of precipitation is rated around 60% for Friday and Saturday, rising to around 80% for race day on Sunday.

The 2001 Malaysian Grand Prix was famously disrupted by a thunderstorm but other than that every F1 race at the circuit has been run in dry conditions.

Ccolanto’s posted some links for following the weather forecast on the forum, you can also keep an eye on this weather radar as we get closer to the weekend.

Are you near Kuala Lumpur? What do you expect from the weather this weekend? Leave a comment below.

Malaysian Grand Prix 2009

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44 comments on Malaysian Grand Prix weather forecast

  1. PaulRS said on 30th March 2009, 17:23

    I am about 60K from Sepang. No rain today, possibly the first day in the past 2 weeks without heavy rain at race time, but it threatened to! One of my UK friends already dropped out!

  2. Toby Thwaites 93 said on 30th March 2009, 18:29

    BMW has tested in the rain with its 2009 car this season :)

  3. Paige said on 30th March 2009, 18:46

    As if Button and Barrichello needed another advantage. ;) Both are outstanding wet racers.

    Hamilton will also be delighted to hear this.

    • Sherman Tank said on 31st March 2009, 10:06

      With no downforce on that Mcclaren i struggle to see how Hamilton will stay on the track, hes good but is he that good???

  4. Scott Joslin said on 30th March 2009, 19:11

    What excites me is the concept of drivers managing damp conditions with slick tyres! It is a skill and will put emphasis on car control more now the drys are proper slicks!

    I am doing my rain dance now….!

  5. schumacherthegreatestever said on 30th March 2009, 19:24

    Wonder what odds i could get at the bookies on hamilton leading the championship after sepang……..

    • Toby Thwaites 93 said on 30th March 2009, 19:28

      To be honest i think the wet conditions will not enhance Hamiltons performance but degrade it. Im confident that the rain will not be helpful to his rubbish Mclaren

    • francois said on 31st March 2009, 18:15

      @Toby – I was thinking about that.The McLaren seems to have reasonable mechanical grip and balance but nowhere near enough downforce.

      I’d have thought downforce might not be quite as critical in the wet because cornering speeds would be lower due to much less mechanical grip.So cars would generate less downforce in wet conditions and thus the difference between a less efficient car like the McLaren and a more efficient car at generating downforce might be less.

      But this isn’t Monaco where teams run big wings because they are going too slowly most of the time to generate significant downforce , there are quite a few long turns needing good aero here , more so than Albert Park.I think Hamilton will do well if it rains but if it stays dry he’ll have a hard time in the McLaren having to drive about 10km/h slower in the long turns.

    • Toby Thwaites 93 said on 31st March 2009, 21:45

      @ Francois – you have thought about this in much more depth than me and i have agree with you :)

  6. Kevin C. said on 30th March 2009, 19:29

    Weather is fine here this few days but is unpredictable. Once the rain storm come it will b nasty. Planning to go live at Sepang GP with some friends. Hopefully is a dry weather on race day.

  7. StrFerrari4Ever said on 30th March 2009, 21:26

    Well this is awesome news rain not just rain thunderstorm going to be interesting to see who can keep control of their vehicles in those tough conditions i wonder if the Brawns will pull away? na i expect everyone to be so tight the small teams need to capitalise on this chance come on Toro Rosso :D the Vettel grid penalty doesnt seem to bad seeing how great he was in the rain in Monza

  8. I remember the same being said about Malaysia last year; it’s just too unpredictable in that part of the world to know until it happens.

    But on the other hand, the race starting at 5p.m. local time rather than 2p.m. should increase the chances of a downpour quite significantly.

  9. chaostheory said on 30th March 2009, 22:43

    Hope it wont rain. Dry weather helps to understand which team/driver is where. Besides I think this time we dont need rain to have interesting race. This time it may be even quite boring if it rains cause the diffuser teams can dominate the race (more downforce – correct me if Im wrong about what that “half-legal” diffuser do to the car).

  10. Hallard said on 31st March 2009, 0:15

    A wet race would be very interesting. The thing we have to remember is that the slicks compensate for the lower downforce in the DRY, but in the wet that is not the case. For this reason it will be MUCH more crucial to get the wet tires on and off the cars at the right time. If I remember correctly I think Toyota and BMW each had at least a day of running in wet conditions during preseason testing. Lets see if that gives them an advantage over some of the others. On the other hand Brawn seems to have a significant edge in downforce, which will only be exaggerated in the wet, and Jenson and Rubens are great in the rain. I think that Ferrari and McLaren will be in big trouble though, as they seemed to struggle greatly with rear end grip in Oz and rain will just make that worse, even for a pro like Hamilton.

  11. manatcna said on 31st March 2009, 4:07

    Grooved tyres are available for use in certain circumstances, I believe.

  12. PaulRS said on 31st March 2009, 12:59

    60K from the track, a friend about 20K from the track, No rain during race time today!

  13. today as usual it was a hot morning and afternoon but at 5pm – no rain. warm night now…perfect day for the race..hopefully on sunday it will be like this..but then again this Malaysian weather we’re talking about here..

  14. amhana said on 1st April 2009, 10:42

    i’m around 20km from the circuit and it’s raining quite heavily now!!

  15. Keith Collantine (@keithcollantine) said on 2nd April 2009, 21:19

    Kevin C, AlvinK, amhana and anyone else who’s in the region – How much light is there around the time the race will be starting and finishing? If it rains heavily, is visibility going to be a problem?

    • amhana said on 3rd April 2009, 1:21

      There should not be a problem in terms of sun light during the race even at the end of it. It is still very bright. The concern would be the position of the sun which would be low and the glare would be a problem.
      If it rains heavily then it will be quite dark and surely visibility is limited…

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