Wet Weather Driving for Learner Drivers in WA

Western Australia has a distinct wet season, and Perth's roads during winter rain are meaningfully different from the dry conditions learner drivers practise in most of the year. Understanding how wet roads change your driving — and adjusting your technique accordingly — is both a safety necessity and an important part of your preparation for the PDA.

Why Wet Roads Are More Dangerous

The most important thing to understand about wet roads is that they significantly reduce tyre grip. The friction between your tyres and the road surface decreases when it rains, which means:

Longer stopping distances — at 60 km/h, stopping distance in wet conditions is approximately 25–30% longer than on dry roads
Reduced cornering grip — tyres can lose traction mid-corner if you enter too fast
Aquaplaning risk — at higher speeds, tyres can ride on a film of water rather than the road surface, causing steering and braking to become temporarily ineffective

All of these mean the same inputs — speed, braking force, steering angle — produce different outcomes when the road is wet. Your technique needs to adjust.

Increase Following Distance

The three-second rule becomes a four or five-second rule in the wet. Pick a fixed point ahead, and ensure you reach it at least four seconds after the vehicle in front.

This feels excessive until you experience an emergency stop on a wet road. The extra distance gives your brakes time to work before you reach the vehicle in front.

Reduce Speed

Speed limits are maximums for ideal conditions. In rain, the appropriate speed is often lower than the posted limit.

This doesn't mean driving slowly and frustratingly below the limit in light drizzle. It means being willing to reduce speed on wet roads, particularly:

In heavy rain with reduced visibility
On roads with poor drainage (surface water visible)
In corners or bends where aquaplaning is a risk
When traffic is heavy and stopping quickly may be required

Brake Gently and Early

Harsh braking on wet roads is a leading cause of skids. Instead of braking hard close to where you need to stop, brake progressively and earlier than you would on dry roads.

Apply brake pressure smoothly and progressively. If your tyres start to lock (indicated by a skidding sound or loss of steering response), ease off the brakes slightly and reapply more gently.

Modern vehicles have ABS (anti-lock braking systems) which prevent wheel lock under heavy braking. If your vehicle has ABS, you may feel a pulsing sensation through the brake pedal under hard braking — this is the system working correctly. Maintain firm, consistent brake pressure and don't release the pedal.

Aquaplaning: What It Is and What to Do

Aquaplaning occurs when your tyres encounter water faster than they can displace it. The tyre rides up on a film of water and loses contact with the road. At this moment, braking and steering have minimal effect.

It typically happens at speeds above 80 km/h in standing water.

If you aquaplane:

Do not steer sharply or brake hard
Ease off the accelerator gently
Maintain a straight steering direction
Allow the vehicle to slow naturally until tyres regain contact

The risk of aquaplaning increases with worn tyres. If your tyres are close to the wear indicators, wet weather is when the risk becomes significant.

Windscreen and Visibility

Reduced visibility is a major wet weather hazard. Before driving in rain:

Turn headlights on (required in WA when visibility is reduced — don't rely on daytime running lights alone)
Ensure windscreen wipers are working and clearing effectively
Use the demister if the inside of the screen fogs

After rain stops, turn headlights off if they're not needed. Leaving them on isn't dangerous, but it's part of good vehicle management.

Puddles and Surface Water

Standing water on the road can be deeper than it appears. At speed, driving through a deep puddle can cause sudden tyre drag, pulling the vehicle to one side.

Slow before puddles and maintain a gentle, straight trajectory through them. If the puddle appears deep, avoid it where possible.

Practise in the Wet

One of the weaknesses in many learner drivers' training is insufficient wet weather experience. If most of your 50 logbook hours are done in summer, you'll have limited exposure to rain driving before your PDA.

Make a specific effort to get lessons in wet conditions. Your instructor can adjust the lesson to focus on the adjustments wet weather requires — spacing, braking, and hazard recognition specifically in rain.

DriveBook connects you with experienced WA driving instructors who will make sure your training covers all conditions, including wet weather.

Find an instructor near you →