Climbing Mount Kilimanjaro is a dream for many people around the world. This beautiful mountain is the highest in Africa and one of the most famous trekking destinations. But before you start your adventure, it’s important to understand a serious challenge that hikers face: altitude sickness.
In this guide, we explain what altitude sickness is, the symptoms to watch for, and how to prevent it while climbing Mount Kilimanjaro.
What Is Altitude Sickness?
Altitude sickness, also called Acute Mountain Sickness (AMS), happens when your body struggles to adjust to the lower oxygen levels at high altitudes.
As you climb higher, the air gets thinner, and your body gets less oxygen. If your body does not adapt well, you may develop symptoms of altitude sickness.
Why Altitude Sickness Happens on Mount Kilimanjaro
Mount Kilimanjaro is over 5,895 meters (19,341 feet) tall. That’s very high! Because of this, many hikers on Mount Kilimanjaro experience some form of altitude sickness, especially if they climb too fast.
Unlike other mountains, Mount Kilimanjaro can be climbed without technical climbing gear. But that doesn’t mean it’s easy. The quick rise in elevation can be hard on your body.
Common Symptoms of Altitude Sickness
If you’re climbing Mount Kilimanjaro, it’s important to watch for these symptoms:
- Headache – This is usually the first sign.
- Nausea or vomiting – Feeling sick or actually throwing up.
- Dizziness – Feeling light-headed or unsteady.
- Fatigue – Very tired, even after resting.
- Loss of appetite – Not feeling hungry at all.
- Shortness of breath – Even while resting.
- Trouble sleeping – Waking up often or not feeling rested.
- Swelling – Hands, face, or feet may swell.
These signs usually start after reaching heights above 2,500 meters. On Mount Kilimanjaro, symptoms often begin from 3,000 meters upwards.
Serious Forms of Altitude Sickness
Altitude sickness can become dangerous. Here are two serious forms to watch out for:
1. High Altitude Pulmonary Edema (HAPE)
- Fluid builds up in the lungs
- Severe shortness of breath
- Blue lips or fingernails
- Chest tightness
- Gurgling sound when breathing
2. High Altitude Cerebral Edema (HACE)
- Fluid in the brain
- Severe confusion
- Difficulty walking
- Hallucinations
- Loss of consciousness
Both HAPE and HACE are medical emergencies. You must descend the mountain immediately and seek help.
How to Prevent Altitude Sickness on Mount Kilimanjaro
The best way to avoid altitude sickness is to go slowly and prepare your body. Here are simple tips:
1. Climb Slowly
Take your time. Most climbers choose 6–8 day routes to allow better acclimatization.
2. Drink Plenty of Water
Stay hydrated. Drink at least 3–4 liters per day.
3. Eat Well
Keep your energy levels up by eating regular, nutritious meals.
4. Take Rest Days
Some routes include rest days for your body to adapt.
5. Use Medication
Some hikers take Diamox (acetazolamide) to help prevent symptoms. Ask your doctor first.
6. Listen to Your Body
If you feel symptoms, tell your guide and rest. Don’t try to push through.
What to Do If You Get Altitude Sickness
If you start showing signs of altitude sickness while climbing Mount Kilimanjaro:
- Stop climbing higher
- Rest and drink water
- Tell your guide
- If symptoms get worse, descend to a lower altitude immediately
- Use oxygen if it’s available
Your guides are trained to monitor symptoms and help you.
Does Everyone Get Altitude Sickness on Mount Kilimanjaro?
Not everyone will get sick, but many people feel some symptoms. Even fit people can get altitude sickness. It’s not about how strong or young you are—it’s about how your body reacts to altitude.
That’s why it’s important to take the climb seriously and prepare well.
Mount Kilimanjaro Facts and Details
Here are some quick facts related to Mount Kilimanjaro to help you plan your hike:
- Mount Kilimanjaro height: 5,895 meters (19,341 feet)
- Mount Kilimanjaro elevation gain: Most routes gain over 4,000 meters in elevation
- Where is Mount Kilimanjaro located? Tanzania, East Africa
- Mount Kilimanjaro country: Tanzania
- How tall is Mount Kilimanjaro? 5,895 meters
- How high is Mount Kilimanjaro? Very high! Almost 6,000 meters
- Mount Kilimanjaro national park: Protected area with wildlife and forests
- How long does it take to climb Mount Kilimanjaro? 5–9 days depending on the route
- Climbing Mount Kilimanjaro: No technical climbing needed, but it’s still a challenge
- Mount Kilimanjaro weather: Varies from hot at the base to freezing at the top
Other Interesting Kilimanjaro Topics
- Mount Kilimanjaro map: Shows different routes like Machame, Marangu, Lemosho
- Mount Kilimanjaro deaths: Rare, but mostly caused by altitude sickness
- Flights to Mount Kilimanjaro: Kilimanjaro International Airport (JRO)
- How was Mount Kilimanjaro formed? It’s a volcanic mountain formed millions of years ago
- What type of volcano is Mount Kilimanjaro? Stratovolcano
- When did Mount Kilimanjaro last erupt? Over 360,000 years ago
- Is Kilimanjaro evil? No—it’s a sacred and beloved mountain in Tanzania
- Mount Kenya vs Mount Kilimanjaro: Kilimanjaro is taller
- Mount Kilimanjaro photos: Snow-capped peak, beautiful sunrises, stunning glaciers
RELATED ARTICLE: Best Time to Climb Mount Kilimanjaro (2025 Guide)
Final Tips for a Safe Kilimanjaro Hike
- Choose a longer route for better acclimatization
- Go with a professional guide, like the experts at Seko Tours
- Train before your trip with hikes and cardio
- Bring warm clothing for the summit night
- Stay positive and listen to your body
Climbing Mount Kilimanjaro is an unforgettable adventure. Knowing the symptoms of altitude sickness and how to handle them can keep you safe and help you enjoy the journey to Uhuru Peak.
FAQ: Altitude Sickness on Mount Kilimanjaro
What is the main cause of altitude sickness?
The body doesn’t get enough oxygen as the air gets thinner at high altitudes.
Can altitude sickness be deadly?
Yes, in severe cases like HAPE or HACE, it can be life-threatening if not treated quickly.
How long does it take to feel symptoms?
Usually within 6 to 24 hours after reaching higher altitudes.
Can you avoid altitude sickness on Kilimanjaro?
Yes, with slow climbing, hydration, good rest, and preparation.
What’s the best way to prepare?
Train with cardio exercises, hike at altitude if possible, and plan a longer Kilimanjaro route.