Excessive speed or sudden change in direction are the main factor for crashes in the wet. The most vulnerable period is during the first few moments of rain, after a long, dry spell. Dust and oil residue mixes with water that creates a very slippery surface.  

Aquaplaning occurs when driving at high speed through a pool of water. If the grooves in the tyres are not deep enough (bald tyre) they may not be able to cope with the volume of water, that needs shifting from the front of the tyre to the rear. At 100 km/h 5 liters of water have to be shifted per second.

If the tyres are unable to cope, the vehicle literally floats over the surface of the water. During that moment the driver will have no control over the steering and the brakes.

The remedy: Come off the accelerator immediately. (Braking will not fix the problem). Once the tyres regain contact with the road, resume normal driving (at a slower speed!)

At high speed, in strong crosswinds, there is a real risk of being pushed into oncoming traffic or off the road altogether. Heavy vehicles at high speed can also create dangerous situations, especially on narrow roads. Take extra caution when towing a caravan. Excessive speed and strong wind has ended many happy holidays. 

Remedy: Drive at reduced speed and keep a firm hold on the steering wheel.

3. Sun glare:

As with night driving, a bright, low sun on the windscreen will show up any dirt. Keep the windscreen spotlessly clean! A dirty windscreen reduces visibility, sometimes down to zero. 

If you lose vision, lower the sun visor. Don't become distracted doing so, especially if a spider falls onto your lap. (If this happens stop the vehicle immediately - see Chapter 26). Never look directly into the sun!