Kilimanjaro Weather by Month
Summit temps from -25C to -8C. Rainfall patterns. Crowd levels. The two windows that deliver 93–96% summit success rates — and the trade-offs in every other month.
Month-by-Month Conditions at a Glance
| Month | Weather | Crowd | Summit Temp | Success Rate |
|---|---|---|---|---|
| January | Dry, clear, cold | Moderate | -10C to -20C | 93–95% |
| February | Dry, clear, warmest temps | Moderate | -8C to -18C | 93–95% |
| March | Rain from mid-month | Low | -8C to -18C | 75–85% |
| April | Heavy rains, muddy | Very low | -8C to -16C | 60–70% |
| May | Transition — improving | Low | -8C to -16C | 75–85% |
| June | Drying out, clearing | Rising | -10C to -20C | 88–92% |
| July | Dry, clear, cold | High | -15C to -25C | 93–96% |
| August | Dry, clear, coldest nights | Very high | -15C to -25C | 93–96% |
| September | Dry, clear, cooling | Moderate | -12C to -22C | 90–94% |
| October | Late dry, some cloud | Moderate | -10C to -20C | 88–92% |
| November | Variable short rains | Low | -8C to -18C | 80–88% |
| December | Dry season start, reliable | Rising | -10C to -20C | 88–92% |
Why Weather Is the Number One Planning Factor
Kilimanjaro sits at 5,895 metres at the equator. That combination — extreme altitude, equatorial sun, and Tanzania's seasonal rainfall patterns — means weather changes fast as you ascend. A clear morning at base camp can become a whiteout at the crater rim by midnight.
No operator can control the weather. What 48 years on the mountain gives us is the ability to read it, plan around it, and make real-time adjustments that protect your summit attempt. Our guides monitor wind forecasts and park weather reports before every summit night — and they will tell you honestly when conditions are not right, even if that means an earlier start than planned.
For climbers who need more precision than a month, we publish a rolling 10-day window analysis — the specific calendar windows with highest summit weather probability for 2026-2027.
The Two Best Windows
January – February (Short Dry Season)
The warmest summit temperatures of the year. Clear skies, low humidity, excellent visibility. This is the second-busiest season on the mountain — busy enough that camps are full, but not packed the way July–August are. We run departures on all six routes during this window. Summit success rates run 93–95% across routes.
June – October (Long Dry Season)
The longest, most reliable weather window on the mountain. July–August are peak months — maximum clarity, maximum crowds, the highest summit success rates of the year. September–October offer near-peak weather quality with noticeably lower numbers on the trails. This is the window that draws the majority of our climbers.
The Worst Periods
March – May (Long Rains)
April is the worst month on Kilimanjaro. The long rains bring persistent, often heavy rainfall from the first day of the trek through to the summit. Trails turn to mud. Cloud sits on the mountain for days. Summit success rates drop to 60–70%. If April is your only available window, we recommend the Rongai or Northern Circuit routes — their northern-facing approach catches meaningfully less rain than the southern routes and dries faster.
November (Short Rains)
The short rains are less intense than the long rains but considerably less predictable. Some Novembers are clear. Others bring heavy afternoon storms from the first week. November climbers should build one extra buffer day into their itinerary and be prepared for variability.
Temperature by Altitude Zone
Temperature on Kilimanjaro drops roughly 6–10C for every 1,000m of elevation gain. This gradient is consistent year-round — what changes is the baseline temperature at each zone by season.
- ▶Moshi (900m): 20–30C year-round. Lightweight trekking clothes, sun protection.
- ▶Forest Camp (2,000–2,800m): 10–18C. Long sleeves, light fleece, rain layer.
- ▶Moorland Camp (3,000–3,500m): 5–12C in the day. Nights drop below freezing — down jacket needed after sunset.
- ▶Alpine Desert (4,000–5,000m): -5C to +8C. Full cold-weather gear mandatory. Summit night at Barafu Camp: -15C to -25C depending on season.
Crowd Levels by Route
Crowd density on Kilimanjaro varies significantly by route and month. Here is what to expect:
- ▶Machame (7 days): Most popular route. Crowded in July–August — book 4+ months ahead. Quieter in January–February and September–October.
- ▶Lemosho (8–9 days): Moderate crowds even in peak season. Western approach keeps lower sections quieter. Excellent option for experienced climbers who want slightly more space.
- ▶Northern Circuit (9–10 days): Least crowded route on the mountain, even in peak season. Circumnavigation takes you through terrain that very few climbers see.
- ▶Rongai (6–7 days): Northern approach. Quietest route in wet season. Best option for April climbers.
- ▶Marangu (5–6 days): Most consistent year-round. Hut accommodation removes weather exposure on lower sections. Lowest crowd levels of any established route.
- ▶Umbwe (6–7 days): Least popular route. Steep, difficult terrain. Not recommended for first-time climbers. Low crowd levels — those who attempt it have the mountain largely to themselves.
What to Pack for Any Season
Regardless of month, three items are non-negotiable on every Kilimanjaro climb:
- 1.Down jacket rated to -20C. Summit night is always cold, in every month. This is the single most important piece of gear.
- 2.Waterproof hardshell jacket and trousers. Rain is possible in any month above 3,000m. The dry seasons reduce this risk but do not eliminate it.
- 3.Sunscreen SPF 50+. UV at 5,000m on a cloudless day is extreme. This is the most commonly under-packed item by first-time Kilimanjaro climbers.
Ready to Plan Your Climb?
Tell us your target month and preferred route. Kassim checks real availability — not a marketing calendar — and will give you an honest answer within 24 hours.