Can You Jump Start a Car in the Rain?

Several people have jumped into their cars, tried starting the car all in vain. On the other hand, what they get is a dreaded click. This happens when the battery has gone flat. When the battery goes flat, then it becomes impossible for the car to start. The best solution when this happens is to jumpstart the car.

Jumpstart occurs when an engine or a vehicle is temporarily connected to an external power source like another vehicle’s battery. This happens when one runs their car down until there is no chemical reaction to give the vehicle electrical power.

Jump starting a car in the raincan you jumpstart a car in the rain

This condition can occur to any car owner at any time. Many people have questions on if this happens when it’s raining, then how can one go about it?  Is it safe for one to jumpstart a car when it’s raining? How dangerous is it to jumpstart a car when it’s raining?

The answer to all these questions is that there is no major harm in jumpstarting a car when it’s raining. In this article, we will go through various ways to jumpstart a car in the rain safely. A car can jump start safely in the rain if several steps are followed carefully. It is said that jump starting a car in the rain is always safe since the vehicle is not too high in voltage.

Items required to start the process;

Safety measures to take when jumpstarting a car in the rainSafety measures to take when jumpstarting a car in the rain

  • Jumper cables have clips that attach to the terminals on either battery firmly. A pair of cables is paramount for every car owner. It is always advised that each car owner should always move with jump starter cables.
  • The choice of jump starter cables is also very crucial. Car owners are advised to get the best quality jump starter cables. The cables are usually of great help when one, by any chance, gets stuck in the middle of their journey. This will ensure that they escape problems that may occur during the process.
  • As earlier mentioned, jumpstarting requires a charged battery to ignite the one that has gone flat. One may not be in a position to carry a spare battery cause it may be expensive. Therefore, most likely, people will need their friends to help them out in such cases. Even when it’s raining, a friend will indeed get you back on the road. We can also say a Good Samaritan since this can happen in a place that you do not know anyone.
  • Jump starting a car in the rain is safe. However, several things need to be noted to ensure a successful process. One major thing is that the jumper cables to be used in the rain need to be very good. The cables should be well insulated. Using damaged cables can lead to short circuits during the rains. It is advisable that one uses an umbrella.
  • Moreover, protective gears are necessary as one carries out the process. Hand gloves are important to use while connecting the lids in the right order. The battery terminals should not be touched simultaneously. Though the battery normally has low voltage, it’s always good to be extra careful.

Read also : How Long To Recharge The Car Battery After The Jump?

Step by step tips on how to jumpstart a car in the rainStep by step tips on how to jumpstart a car in the rain

 Jump starter cables are normally a few meters long. Therefore the first thing is to check the location of the two batteries. The two batteries should be as close as possible. It is important to note that some cars do have their battery in the trunk. For such cases, jump start cables will be under the hood.

Nevertheless, checking the car manual before starting the process is important. This is because each manual always has a section about jump starting. One should follow the guidance given to avoid damaging either of the cars.

It is advisable that you turn off the car before connecting the cables. Indeed all the electrical items in both cars should be switched off. This includes the radio, lights, air conditioner, and windshield wipers. This allows as much power as possible to be allowed to move to the flat battery.

The moisture during the rains should not be a bother if the jumper cables are well insulated.  The most important thing is connecting the jump cable in the positive post of the dead battery. The other side of the jumper cable should be placed on the positive post of the good battery.

The jumper cables are colored red or black. While doing the connection of the cables, one should make sure that the clamps do not come into conduct. They should also not touch anything metallic.

The black clamp should be attached to the large metallic part of the dead car’s engine block. It should not be connected to the battery. It is important to ensure that the battery is protected from the rain. A lot of attention should be paid to the order of the cable connection.

The red clamp is positive, and the black clamps are negative. When starting the cars, one should ensure that they don’t cross the two cables. Doing this accidentally can cause a short circuit which is very dangerous.

When the battery is charged, one can now start the car. It is advisable to allow it to idle for some time. This adds some amount of charge to the flat battery.

Having done that, one should start the car with a flat battery. In a short while, the car should start easily only if everything is alright.

If the cars start easily, the jumper cables can now be disconnected. The negative cable should be removed first, and then the negative cable should be the last. One should take precautions not to touch anything made of metal while disconnecting them.

After jumpstarting, the car should be allowed to idle for at least half an hour. This helps the alternator recharge the battery and gives the dead battery an adequate charge to start the car again, and the car can then be driven. The soonest possible, a battery charger should be attached to charge the battery fully to avoid such an instance from occurring regularly.

Precautions to take when it is raining

If it’s raining and there are thunderstorms and lightning, then it’s advisable not to jump start your car since it’s dangerous. Lightning gets its way to the ground, and being close to your car, which happens to be a large metal, isn’t the best idea. When the thunderstorm passes then, it becomes safer to jump start the car.


When one has the right cables and good preparation for the exercise, then jumpstarting a car in the rain is just a simple process. One should take time to read the car manual carefully before commencing the process to avoid mistakes.

Precaution should be taken when connecting the cables. Red clumps should connect to red terminals, while black clumps should connect to the black terminal. If the red terminal of a battery is connected to the black one, it will easily cause a short circuit. This causes the flow of electric current, which can create a large amount of gas, leading to a high risk of exploding.

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