From June to September the Indian monsoon turns highways into rivers and ghat roads into waterfalls. It is also the cheapest time to rent a car and the most beautiful time to see the Western Ghats, Kerala and Goa. With the right habits, a rental is perfectly safe in the rain. This guide covers monsoon driving techniques, how to avoid flood damage that is not covered by insurance, and how FASTag tolls work in a rental car.
Before you set off in the rain
- Inspect the car at pick-up. Check tyre tread depth (use the tread wear indicators), working wipers, headlights, brake lights, indicators and the horn. Ask for a different car if the wipers smear or the tyres are bald.
- Test the brakes in the first few hundred metres. Wet brake discs can feel weak initially.
- Check the spare wheel and jack. Punctures are more common when roads are broken and covered by water.
- Plan extra time. Add at least 30–50% to your normal journey time in heavy rain.
- Charge your phone and download offline maps. Network coverage drops in ghats.
Driving in heavy rain
- Slow down. Stopping distances double on a wet road. Keep at least a four-second gap from the car ahead.
- Use dipped headlights in rain and fog; avoid hazard lights while moving, as they confuse other drivers.
- Avoid sudden braking or steering. Ease off the accelerator, brake gently and early.
- Beware of aquaplaning. If the steering feels light and the engine revs rise, lift off smoothly and do not brake until grip returns.
- Keep windows demisted. Use the AC and the demister; switch on rear demister as well.
- Stay away from trucks and their spray, and do not overtake on blind curves.
Flooded roads: the one rule that saves your wallet
Do not drive through water if you cannot judge its depth. A rental car's engine air intake is low; if water enters the engine (hydrolock), the repair can cost several lakhs and is excluded from almost every rental protection plan. As a rule of thumb, if water is higher than the bottom of your door or you cannot see the road surface, turn back or wait.
If you must cross shallow water: drive slowly in first gear, keep the revs steady, never stop mid-way, and test the brakes after you exit. If the engine stalls in water, do not restart it — call the rental's assistance number and wait for a tow.
Ghat roads and landslide zones
- Use a lower gear on descents rather than riding the brakes, which can fade and overheat.
- Sound the horn lightly before blind curves and give way to uphill traffic and buses.
- Avoid driving ghats at night or in dense fog.
- Watch for fallen rocks, mud and water streaming across the road. If a stretch is closed, follow police diversions.
- Never park under a cliff, a hanging tree or on a soft shoulder.
FASTag: what it is and why it matters
FASTag is the electronic toll payment system on national highways. A sticker on the windscreen is read by the toll plaza and the toll is deducted from a linked prepaid account. Cash lanes have been largely replaced, and vehicles without a working FASTag can be charged double or denied entry to the dedicated lane.
Rental cars come with a FASTag fitted. Rental companies handle it in one of two ways: tolls are deducted from the tag's balance and billed back to you at actual cost on return, or the car has a prepaid balance that you use and the remainder is adjusted. Ask the desk which applies. S.S. Travels cars have FASTag fitted and tolls are billed at cost with no markup.
Do not use your own tag in a rental, and never move the sticker. Each tag is tied to one vehicle's registration; misuse can lead to blacklisting.
Expected toll costs
Toll plazas on national highways charge by vehicle class. A private car or jeep typically pays between ₹60 and ₹250 per plaza, depending on the plaza and the distance. Expressways with long distances can charge more per entry. On a 600 km route like Mumbai to Goa or Hyderabad to Bengaluru you will cross several plazas, so budget a few thousand rupees for tolls. Return-journey discounts exist at some plazas if you cross within 24 hours, which the system applies automatically.
What if the toll is wrongly charged or the tag fails? Keep the receipt or SMS, and tell the rental company; mistakes happen and can be reversed. If the tag is not read, go to the manual lane, pay and keep proof.
Tolls, speed limits and cameras
Many expressways use automatic number plate recognition and speed cameras. Challans are sent to the registered owner — the rental company — which passes the fine on to you, usually deducted from the deposit. Keep to the posted limit, typically 100 km/h on expressways and 80 km/h on highways for cars, lower in towns and ghats.
Emergency kit for a monsoon trip
- Reflective triangle and torch
- First-aid kit
- Raincoat and a towel
- Water and snacks
- Phone power bank
- A printed copy of the rental agreement and the 24x7 helpline number
When to postpone
If the weather department has issued a red alert, if highways are closed or if you cannot see more than a few metres in rain, postpone the drive. Your booking can often be cancelled free of charge up to 48 hours before pick-up on S.S. Travels; check the cancellation terms on your voucher. Safe arrival matters more than a day saved.
Summary
Check tyres and wipers at pick-up, slow down, keep a big gap, never drive through water you cannot judge, use low gears in the ghats, confirm how FASTag billing works and keep proof of every toll. Follow these habits and the monsoon becomes a season of great, quiet roads rather than a risk.
