Summary
- The FIA has declared a heat hazard for the Bahrain Grand Prix in Malaysia.
- The forecast reported by GRANDE PRÊMIO puts the rain probability at 70% for FP2, 60% for qualifying and 50% for the race.
- Friday’s opening practice ran in dry conditions, with drivers already reporting significant heat and tyre wear.
The Bahrain Grand Prix in Malaysia presents two weather challenges: intense heat and the possibility of tropical rain. The FIA has formally declared a heat hazard for the Sepang weekend, while the forecast reported by GRANDE PRÊMIO indicates a chance of rain during every session.
The distinction matters as Formula 1 returns to the circuit for the first time since 2017. Heat affects drivers, cooling requirements and tyre performance even when the track stays dry; rain could introduce a different set of demands during practice, qualifying and Sunday’s race.
Friday’s opening practice took place without rain, with Max Verstappen setting the fastest time. Drivers nevertheless encountered the demanding conditions anticipated before the weekend.
Why has the FIA declared a heat hazard?
Race director Rui Marques issued the declaration on Wednesday, 30 September, after receiving a forecast from the championship’s official weather service.
The document specifies that the heat index is expected to exceed 31°C at some point during the race. That measure accounts for the combined effect of temperature and humidity; it is not simply the air temperature shown on a thermometer.
“A Heat Hazard is declared,” the FIA notice states.
The declaration activates the championship’s driver-cooling provisions. Cars must carry the required cooling system, while drivers can elect not to wear the personal equipment that forms part of it. In that case, the regulations require compensating cockpit ballast.
A cooling vest circulates cooled fluid through tubing to help manage the driver’s body temperature. The requirement to fit the system and the driver’s decision to wear its personal equipment are separate parts of the procedure.
How likely is rain at Sepang?
The forecast cited by GRANDE PRÊMIO, attributed to the European Centre for Medium-Range Weather Forecasts, places FP2 at the highest rain probability, with 70%.
Qualifying follows at 60%, while Sunday’s race is listed at 50%. The same forecast gives FP3 a lower probability of 20%.
These figures describe the forecast available for the report. They are not guarantees of rainfall, and they should not be read as the percentage of a session that will be wet. Forecasts from different providers can also vary, particularly for localised showers.
Bahrain GP in Malaysia: reported rain probabilities
| Session | Date | Reported chance of rain |
|---|---|---|
| FP1 — completed in dry conditions | Friday, 2 October | 30% before the session |
| FP2 | Friday, 2 October | 70% |
| FP3 | Saturday, 3 October | 20% |
| Qualifying | Saturday, 3 October | 60% |
| Race | Sunday, 4 October | 50% |
Forecast figures reproduced from the report supplied for this article; probabilities may change with subsequent updates.
Dry FP1 already exposed the heat challenge
The absence of rain in FP1 did not make the opening hour straightforward. Verstappen led Russell by 0.383 seconds, but heat, grip and tyre degradation remained prominent concerns.
“The tyre degradation is insane,” Charles Leclerc said over the radio.
“This is the craziest I’ve ever been in my life with temperatures,” Gabriel Bortoleto reported.
Those observations underline why the heat declaration remains relevant alongside the rain forecast. Teams need to manage cooling and tyre performance while remaining ready to respond if conditions change.
FP2 begins at 16:00 local time on Friday, equivalent to 09:00 BST, 04:00 EDT, 13:30 IST and 18:00 AEST. Readers can check the Friday practice schedule for Sepang for the full timing breakdown.
Formula 1 is racing this weekend, from 2–4 October, in Malaysia, which hosts the Bahrain Grand Prix. GRANDE PRÊMIO will cover all the action at Sepang.
F1 today: FAQ
What time is F1 qualifying at Sepang?
Qualifying starts on Saturday, 3 October, at 16:00 Malaysia time. That is 09:00 BST in the UK, 04:00 EDT in New York and Toronto, 01:00 PDT in Los Angeles and Vancouver, 13:30 IST in India and 18:00 AEST in Sydney.
Did Lewis Hamilton receive a grid penalty for the Bortoleto incident?
No. Hamilton received a warning after impeding Gabriel Bortoleto during FP2 at Sepang. Ferrari was fined €10,000, but Hamilton will not lose grid positions over the incident.
Why were F1 lap times at Sepang over four seconds slower than expected?
Pirelli identified low grip, dust and an abrasive surface that increased tyre sliding and degradation. Friday’s benchmark was more than four seconds slower than its qualifying simulation reference, rather than four seconds slower than the 2017 race weekend.
Will it rain during the Bahrain Grand Prix in Malaysia?
Rain is possible, but not certain. The forecast reported by GRANDE PRÊMIO gives Sunday’s race a 50% probability, with higher figures for FP2 and qualifying.
