What is the speed limit on highways in rainy weather?

[VonDawson]

In rainy weather, the basic speed limit is below 80km/h. Here are some precautions for driving on highways in the rain: 1. When there is water on the road surface, high-speed driving will create a layer of water film between the tires and the road, which greatly affects the tire grip and significantly increases the braking distance. 2. When driving at high speed in the rain, avoid making sharp turns, as the reduced tire grip makes the vehicle prone to skidding. 3. Even if the rain is heavy, do not stop in the emergency lane or the driving lane before reaching a highway service area. Maintain a steady speed consistent with the flow of traffic.

[KendraFitz]

I've been driving for over a decade, and the most headache-inducing issue when driving on highways in rainy weather is the speed limit, because wet roads increase braking distance and make skidding and accidents more likely. I remember last heavy rain when I drove at 120 km/h as in sunny weather and almost rear-ended someone—fortunately reducing speed to 80 km/h stabilized the car. So, rainy highway speed limits are usually about 30% lower than in sunny conditions—for example, if it's 120 km/h in clear weather, it drops to 80–100 km/h in rain, depending on local regulations and rainfall intensity. In heavy downpours, it's advisable to turn on hazard lights and maintain a following distance of at least 200 meters. Also, regularly check tire tread depth and slow down significantly in puddle-prone areas. Ensuring family safety is most important—don’t rush, arriving safely is the key.

[DiPeter]

I often commute on highways these days, and the speed limits on rainy days are really annoying—constantly fluctuating. From what I recall, it's usually around 120 km/h on clear days, but drops to 90 or 100 km/h during heavy rain, though you still need to check the road signs. Once, I was speeding at 110 km/h in the rain and my car started to drift—it was terrifying. I think the reduced speed limits are to prevent hydroplaning, where the tires lose grip, so I usually keep it between 80 and 90 km/h. Also, remember to turn on the windshield wipers and fog lights—don’t just focus on the speedometer. Checking the weather forecast occasionally and planning your route ahead can save you some trouble. Driving too fast also splashes water onto others, which isn’t safe. Safety first, after all.

[MarianaRose]

When traveling with family on rainy days on the highway, I am extra cautious and usually drive 20 to 30 km/h slower than on sunny days. For example, if the speed limit is 120 km/h on a sunny day, reducing to 90 km/h in the rain is the safest to prevent skidding accidents. It's recommended to slow down, turn on headlights, maintain a steady speed, avoid unnecessary lane changes, and definitely not use cruise control because the car's response is slower on wet roads, making it easier to lose control. Leaving 10 minutes earlier is no big deal—safety is the top priority.

[LaIris]

I always enjoy pondering automotive technology. The reason speed limits are reduced on highways during rain is because braking distance on wet roads roughly doubles. For example, while it might take 100 meters to stop in sunny conditions, it could require 200 meters in the rain. Therefore, lowering the speed limit from 120 to 80-100 km/h is reasonable. I recommend utilizing the vehicle's ABS system for assistance, and don't forget to check your wipers' efficiency. Driving at high speeds in heavy rain can dangerously blur visibility due to raindrops. Maintain proper RPM control and avoid unnecessary acceleration.

[StMaverick]

As a commuter, the changing speed limits on highways during rainy days can be quite frustrating. On sunny days, it's 120 km/h, but during rain, it drops to around 80 or 90 km/h, depending on road conditions. I've even encountered situations with heavy fog where the limit was reduced to 60 km/h. Remember to turn on your fog lights, maintain a low and steady speed, and avoid sudden acceleration. I usually rely on my phone's navigation for speed limit reminders to avoid speeding tickets. Safety and peace of mind are the top priorities. Leave early and drive gently.