Kilimanjaro Weather, Wildlife and Vegetation
Yes, there are spiders on Kilimanjaro, but on the lower slopes. Since the high altitudes cannot support plant or animal life, insects such as spiders, ants, and leeches can be found in the rainforest zone. The zone also plays host to rats, snakes, birds, and other small animals. If you come across spiders or any other insect, it would most probably be at the beginning segment of your trek. They are not a problem, whatsoever in tents or sleeping bags.
Read more about the wildlife and animals that live around Mount Kilimanjaro
Spiders on Kilimanjaro
- Spiders do exist, especially in the lower rainforest and moorland zones (below ~3,000 m / 9,800 ft).
- Most are small, harmless species.
- You are unlikely to see any during the climb. They tend to stay hidden in vegetation or under rocks.
- No dangerous spiders (like black widows or brown recluses) are known to be common on the mountain.
Scorpions on Kilimanjaro
- Scorpions are present, mainly in the drier lower areas and rocky sections.
- The species found here are usually small to medium-sized and not highly venomous to humans (their sting is painful like a bee sting but not life-threatening for healthy adults).
- They are nocturnal and hide under rocks or in crevices during the day.
- Encounters are extremely rare on the standard trekking routes.
Practical Tips for Peace of Mind
- Shake out your boots and clothes in the morning before putting them on (standard mountain habit).
- Use a headlamp when walking around camp at night.
- Keep your tent zipped up.
- Don’t put your hands into dark crevices or under rocks.
- Porters and guides are very familiar with the mountain and will help if anything unusual appears.
Spiders and scorpions are part of the natural ecosystem, but they are not a significant concern for climbers. The vast majority of people complete their trek without seeing either. The bigger “wildlife” you’ll notice is birds, monkeys (in the forest), and the occasional rodent at lower camps. Focus more on altitude, weather, and hydration — those are the real challenges on Kilimanjaro!
The weather on Mount Kilimanjaro varies widely from the cultivated zone at the base, the rainforest at the foot slopes of the mountain, to the arctic zone at the summit. The temperatures can range from 25⁰C at the base of Mount Kilimanjaro to subzero by the time you reach the summit. As you traverse different vegetation zones on your route, expect some rainfall too in the process of trekking. Due to the high altitudes of Mount Kilimanjaro, the mountain creates its own weather.
More about the weather around Mount Kilimanjaro
The weather on Mount Kilimanjaro is highly variable because you pass through four or five ecological zones in just a few days. Temperatures and conditions change dramatically with altitude, time of day, and season.
Quick Overview by Altitude
| Zone | Altitude | Typical Daytime Temp | Night Temp | Weather Notes |
|---|---|---|---|---|
| Rainforest | 1,800 – 2,800 m | 15–25°C (59–77°F) | 10–15°C | Warm, humid, frequent rain |
| Heather/Moorland | 2,800 – 4,000 m | 10–20°C (50–68°F) | 5–10°C | Cooler, misty, windy |
| Alpine Desert | 4,000 – 5,000 m | 0–15°C (32–59°F) | -5 to 5°C | Dry, cold, strong winds, intense sun |
| Arctic Summit | 5,000 – 5,895 m | -10 to 5°C (14–41°F) | -15 to -25°C | Freezing, possible snow/ice, high winds |
Best Seasons (Weather-Wise)
- Best overall — June to October (dry season, clearer skies, fewer rains)
- Good secondary — December to February (also dry, warmer at lower levels)
- Shoulder seasons — November and March (variable, can still be good)
- Avoid if possible — April–May (long rains) and late November (short rains) — trails can be very muddy and slippery
What to Expect on Summit Night
- Starts around midnight in complete darkness.
- Temperatures often drop to -10°C to -25°C (14°F to -13°F) with wind chill.
- Strong winds are common near the crater rim.
- Snow and ice possible on the summit (especially after recent rains).
Daily Weather Patterns
- Mornings are usually clear and sunny.
- Clouds often build in the afternoon (especially in the forest and moorland zones).
- Rain showers are common in the lower zones.
- Above 4,000 m it is much drier and colder.
Practical Tips
- Layering is essential — You can experience all four seasons in one day.
- Sun protection — UV is very strong at altitude — wear sunscreen and sunglasses.
- Rain gear — Always carry a waterproof jacket and pants in your daypack.
- Warm layers — Down jacket and warm hat/gloves are critical for summit night.
The dramatic weather changes are part of what makes Kilimanjaro so special — you go from tropical rainforest to arctic conditions in less than a week.