Choose Your Route Wisely
You have two primary routes into Spiti: via Shimla or via Manali. The Shimla-Kaza highway is longer (~430 km) but is considered the safer, more reliable option for autumn travel. It follows a gradual ascent, which is crucial for acclimatization, and generally
remains open until November. The Manali-Kaza route (~200 km) is shorter and more adventurous but also far more unpredictable. It involves crossing the high-altitude Kunzum Pass (4,590m), which can close without warning due to snowfall as early as late September or mid-October. For any trip after mid-October, the Shimla route is the only practical choice. If you are traveling in early October, check the daily road status from the Border Roads Organisation (BRO) before attempting the Manali side.
Prepare Your Vehicle for a Beating
The roads in Spiti are demanding, with long stretches of gravel, loose rock, and water crossings, especially on the Manali route between Gramphu and Losar. A high-ground-clearance vehicle like an SUV is highly recommended. Before you leave, conduct a thorough check of your vehicle. Ensure your tyres are in excellent condition, and check the engine oil, coolant, and battery. Punctures are common, so your spare tyre must be ready, and you should know how to change it. Given the sparse population and limited services, petrol pumps are few and far between. Always refuel when you get the chance in towns like Reckong Peo or Kaza and consider carrying a spare fuel can, particularly for the Manali leg.
Respect Altitude Mountain Sickness (AMS)
Altitude sickness is a serious risk in Spiti, where you will be consistently above 3,500 metres. It can affect anyone, regardless of age or fitness level, and occurs when your body doesn't get enough time to adjust to lower oxygen levels. Symptoms range from headaches, nausea, and dizziness to life-threatening conditions. The golden rule is to ascend gradually. This is why the Shimla route is recommended for first-timers, as it allows for a slower climb. Stay aggressively hydrated by drinking 3-4 litres of water daily, eat carbohydrate-rich meals, and avoid alcohol for the first few days at altitude. If you experience persistent headaches or vomiting, the only cure is to descend to a lower altitude immediately.
Pack in Layers, Not Bulk
Autumn weather in Spiti can swing from pleasant sunshine during the day (10-15°C) to freezing temperatures at night (-2°C to 5°C or lower). The key to comfort is layering. Your packing list is non-negotiable and must include thermal inners, a fleece mid-layer, and a windproof, waterproof outer jacket. Also pack woollen socks, gloves, a warm cap or balaclava, and UV-protection sunglasses to combat the harsh sun. Sturdy, waterproof trekking shoes are essential. Since you'll be far from major stores, your personal kit should include a high-SPF sunscreen, lip balm, and a heavy moisturiser, as the dry, cold air is brutal on the skin.
Carry Essential Supplies
Beyond clothing, certain supplies are critical. Mobile connectivity is unreliable outside of Kaza, where BSNL and Jio Postpaid have some service. Download offline maps before you start. ATMs are often out of cash, so carry enough currency for your entire trip. Power cuts are common; a high-capacity power bank is a lifesaver for your phone and camera. Your first-aid kit should contain medication for headaches, fever, and stomach issues, along with antiseptic wipes, bandages, and any personal prescriptions. Many travellers also consult a doctor about carrying Acetazolamide (Diamox) for AMS prevention.
Know the On-Road Realities
An autumn trip demands flexibility. Early snowfall can cause road closures and significant delays. Always have a buffer of one or two extra days in your itinerary. In autumn, daylight hours are shorter, and driving at night is extremely dangerous due to poor visibility and the risk of black ice. Plan to start your drives early, by 7 or 8 AM, and aim to reach your destination by early evening. Many guesthouses and campsites, especially at Chandratal, start closing by mid-October, so pre-booking your accommodation is highly recommended.
