What is the weather on Kilimanjaro like?
Mount Kilimanjaro in Tanzania is the tallest mountain in
Africa and sits on the border between Tanzania and Kenya in East Africa. The
proximity of Kilimanjaro to the equator means that the temperatures at sea
level in Tanzania and Kenya are fairly consistent throughout the year and the
sun rises and sets at more or less the same time each day all year round.
At 5,895m high, Kilimanjaro is home to its own unique
weather system, with a microclimate that changes with altitude and differs
wildly to the weather outside of Kilimanjaro National Park.
This blog takes a more in depth look at the weather on
Kilimanjaro, her unique topography and climate zones, as well as the best time
of year to climb Kilimanjaro and Kilimanjaro temperature variances.
Kilimanjaro Altitude
The biggest determinant of Kilimanjaro weather is the
altitude. The higher you climb, the colder the temperature. It takes around 4-6
days of trekking along most Kilimanjaro
routes to reach Uhuru Peak, the Kilimanjaro summit, and during that time
you’ll pass through 5 different climate zones which are around 1,000m different
in altitude, each with their own unique Kilimanjaro weather system. The higher
you climb, the lower the amount of rain and the temperature will also decrease.
It has been suggested that the journey from gate to peak is the same as you’d
experience if you were travelling from the equator to the Arctic!
Most Kilimanjaro treks begin from the town of Moshi. You’ll
likely fly into Kilimanjaro
International Airport which receives flights from hubs in East Africa,
Europe and the US, before heading to Moshi to stay before you begin your
Kilimanjaro climb and potentially afterwards too.
Moshi is approximately 700 – 950m in altitude and sits
outside of the national park but is part of the start of the lush, volcanic
agricultural zone at the base of Mt Kilimanjaro. The weather on Mount
Kilimanjaro will be different when compared with the weather in Moshi because
of the altitude, the trade-winds and the precipitation they bring with them.
Kilimanjaro's Climate Zones
Standing almost 6,000 metres in height, Kilimanjaro has its
own climate zones and the weather for Kilimanjaro, along with the flora and
fauna, changes drastically as you ascend the mountain. These climate zones can
be separated into 5 distinct areas, and each is wildly different to the last.
Passing through the varied landscapes on Kilimanjaro is what makes this trek a
wonderfully unique trekking experience and one to remember.
Cultivation Zone Kilimanjaro
- Altitude – 800 – 1,800 m or 2,600 – 6,000 ft
- Average daytime temperature – 20 - 30°C or 68 - 86°F
- Average nighttime temperature – 5 - 15°C or 41 - 59°F
- Average rainfall – 500 – 1,800 mm or 20 – 70 inches
The first and lowest is the cultivated zone. This is where
the lush rolling foothills of Mount Kilimanjaro have been farmed using the
rich, volcanic soil. Crops grown on the slopes of Kilimanjaro include coffee
and bananas which are cultivated higher up, above fields of avocado, papaya and
mango trees, maize fields, beans, cardamom and cloves. The landscape will be
split into small plantations interspersed with livestock farming. This belt of
agricultural activity around the base of Kilimanjaro sustains the local
populations here, in addition to jobs provided by the trekking tourism
industry.
You’ll most likely be driven through this area on your way
to the entry gates to the start of your trekking route. There will be plenty of
locals here, working in the fields and harvesting crops.
The weather is much the same as it would be in Moshi, with
temperatures ranging from 20-30°C (68 – 86°F) during the day to 5-15°C
(41-59°F) at night. Annual rainfall at these altitudes is around 500 – 1,800
millimetres or 20 – 70 inches although there is more rain during the wet
season, obviously, and less during the dry months. It also rains more on the
south side of Kilimanjaro because of the trade winds coming from the Indian
Ocean, bringing the wet weather with them, whereas the north side is protected by
the mountain itself.
Rainforest Zone Kilimanjaro
- Altitude – 1,800 – 2,800 m or 6,000 – 9,200 ft
- Average daytime temperature – 20 - 30°C or 68 - 86°F
- Average nighttime temperature – 5 - 15°C or 41 - 59°F
- Average rainfall – 1,000 – 2,000 mm or 40 – 79 inches
Following the cultivation belt on Kilimanjaro is the rainforest
zone which extends from around 1,800 metres up to 2,800 metres or 6,000 ft to 9,200
ft. This zone is warm and humid and attracts a fair amount of rain, especially during
the wet season. In fact, it can rain up to 2 metres during the year in the
rainforest, hence the name. The lush, dense tropical forest here is teeming
with plant and wildlife and is perpetually damp and warm during the day.
Nighttime temperatures can plummet in the rainforest so having wet weather gear
handy will help if you need the toilet during the night. While the average
temperatures here are similar to the cultivated zones below, the humidity is
much higher making it feel warmer than lower altitudes.
The rainforest zone on Kilimanjaro is where you are most
likely to spot animals including blue and colobus monkeys. Trekkers on the
quieter Rongai and Lemosho routes may be lucky enough to spot larger animals
such as elephant, buffalo or antelope but on all routes, you should see smaller
animals and plenty of birdlife.
Visitors to Kilimanjaro National Park are often
surprised by the green of the jungle at the start of their trek, instead
imagining Kilimanjaro to be hot and dry lower down and cold higher up but not
forested to the extent that it is.
Low Alpine Zone Kilimanjaro
- Altitude – 2,800 – 4,000 m or 9,200 – 13,200 ft
- Average daytime temperature – 10 - 27°C or 50 - 80°F
- Average nighttime temperature – -1 - 15°C or 30 - 60°F
- Average rainfall – 550 – 1,300mm or 21 – 50 inches
The third climate zone on Kilimanjaro is known as the low alpine
area, often referred to as the heath or moorland zone, and extends from 2,800 metres
to 4,000 metres, or 9,200 – 13,200 ft. This is a semi-arid grassland zone but
should not be overlooked by those passing through. The low alpine zone is
dotted with unique and unusual flora and fauna and is truly captivating to walk
through. The temperature here will be warmer and drier than the rainforest
below but there will still be a large amount of rain here, especially during
the wet season. There will also be a bigger contrast here between daytime and
nighttime temperatures, which have caused much of the vegetation here to adapt
to the dramatic temperature fluctuations.
Low-lying shrubs, giant heather and stunning lobelias cover
much of the landscape, amongst which crazy tree senecios sprout up like
guardians watching over those passing underneath them. The paths here will be
firm and rocky and there will be less wildlife to spot, apart from the
occasional rodent or small deer. In contrast to the changes on the ground, the
views offered by this moorland appear as if from out of nowhere and all of a
sudden you will see the volcanic crater looming above. The views are incredible
now that you can see above the vegetation!
High Alpine Zone Kilimanjaro
- Altitude – 4,000 – 5,000m or 13,200 – 16,500 ft
- Average daytime temperature – -12 - 15°C or 10 – 60°F
- Average nighttime temperature – -12 – -4 °C or 10 - 40°F
- Average rainfall – 250 mm or 10 inches
The fourth zone is known as the high alpine zone, or the
alpine desert. With an arid desert-like landscape, zone four extends from 4,000
metres to 5,000 metres with average temperatures around the freezing point.
Temperatures in the day can actually be quite hot when the sun is shining whilst
at night the temperature plummets, so remember to bring warm gear and some
sunscreen. Check out our Kilimanjaro packing list for more information.
The low alpine scrub and wacky vegetation gives way to
volcanic, rocky terrain here and Kilimanjaro begins to look more like the
volcano she is. As rainfall here is low, there is little vegetation and
therefore not much wildlife to see. You are now at high altitude, so you’ll
find yourself passing into and out of this zone as you acclimatise to the
thinner mountain air. Successful acclimatisation to high altitudes depends on
plenty of time spent at altitude so your body can adjust and the philosophy of
climbing high and sleeping low means you’ll spend the night here before summit
night but sleep lower down before then.
Glacial Zone Kilimanjaro
- Altitude – above 5,000m or 16,500 ft
- Average daytime temperature – -12 - 4°C or 10 – 40°F
- Average nighttime temperature – -26 – -7 °C or -15 - 20°F
- Average precipitation – 100 mm or 4 inches
The highest area on Kilimanjaro is known as the glacial or
arctic zone and the temperature is usually below freezing with an average of -6°C/20°F.
If you’ve reached here, you’re almost at Kilimanjaro summit – well done! At
this point you will usually be feeling the effects of the high altitude, your
legs may well be tired and you may have been struggling to sleep, but don’t
worry, it’ll all be worth it. Summit day on Kilimanjaro is the hardest
part of your trek but definitely the most rewarding.
The area is often covered in snow and the high winds at this
altitude make the temperature feel far lower than it is. Glacial silt covers
the upper slopes, and a number of glaciers can be seen from the crater rim of
Kilimanjaro. Kilimanjaro was once covered in glaciers, but global warming has
reduced many to isolated patches of ice and snow, and others have disappeared
completely. At one time there were around 20 different glaciers on Kilimanjaro
but now there are only a handful left. The most well-known glacier on
Kilimanjaro is the Fürtwangler Glacier, named after Walter Fürtwangler, a
German trekker who climbed Kilimanjaro in 1912 as part of the fourth party to
conquer her.
At this height your body is getting half the oxygen it was
at ground level, so spending as little time as possible here is imperative. The
views from Uhuru Peak, the summit of Kilimanjaro, are incredible so don’t
forget to stop for a moment and take it all in before beginning your (long!)
descent. Kilimanjaro summit weather is beautiful but brutal so make sure you
are well wrapped up whilst you are at the peak.
The chart below demonstrates the average monthly temperature
across 4 climate zones on Kilimanjaro and shows the difference altitude
makes to the weather on Kilimanjaro.
Kilimanjaro Seasons
There are four main seasons on Kilimanjaro, and indeed in
much of East Africa, and these are the various wet and dry seasons. There are
two longer seasons and two shorter seasons, and they are defined by the amount
of rainfall experienced during these periods rather than the temperature,
although the former has an effect on the latter. As global temperatures rise,
the transition between seasons is changing, and there may be more rain during
dry periods and longer draughts in between wet seasons. Because Kilimanjaro is
so high, the weather surrounding her is majorly affected by the interaction of
trade winds and these are what bring the rain, and with it, drops in
temperature.
The long wet season
- When - April – May
- Average rainfall – 113mm or 4 inches
Generally, the wettest period on Kilimanjaro is between
April and May. This is because the southeast trade winds hit the mountain at
this time of year. By travelling over the Indian Ocean, the winds pick up a
great deal of moisture that then condenses and turns into clouds and
precipitation as it gets forced up the mountain.
If you have to climb during this period, then we suggest
staying away from the southern slopes as this side of the mountain gets the
most rain during these months. A good route option would be the Rongai Route as it takes a trail up the northern side
of Kilimanjaro and generally gets less rain. Kandoo Adventures don’t operate
trips during the wettest months as conditions can be unpredictable and you want
to enjoy your Kilimanjaro trek without having to look at your feet the whole
time!
The long dry season
- When - June – October
- Average rainfall – 14mm or 0.5 inches
The driest months on Kilimanjaro are from June through to early
November. Anti-trade winds blowing in strongly from the northeast carry almost
no moisture and force the southeast winds downwards, keeping the mountain
relatively free of precipitation and clouds, especially higher up. The fringe
months of June, July, later October and early November still hold the promise
of rain albeit far less than during the wet seasons. These months can be
quieter on the mountain, especially on the less busy trails, as it can be
cheaper to travel to Tanzania during this time.
For these dryer periods we would recommend popular routes
like the Machame Route or Lemosho Route for the best trekking conditions and the most
breathtaking scenery.
the short wet season
- When - November – December
- Average rainfall – 78mm or 3 inches
November sees the beginning of the northeast monsoon period
which regularly brings light rains to the north side of Kilimanjaro and
scattered showers to the south side of the mountain. The rains normally only
last 3-4 weeks and by early December they have usually stopped. Kandoo don’t
offer Kilimanjaro trips in November, but we do in December as the conditions
tend to be better.
the short dry season
- When - January – March
- Average rainfall – 73mm or 3 inches
December into January, February and March is the short dry
season. Temperatures are slightly warmer at the base of Kilimanjaro than June
to October but much colder at higher altitudes. As Mount Kilimanjaro is technically
in the southern hemisphere, this is summertime in Tanzania and it’s a beautiful
time to trek.
Best months to trek Kilimanjaro
Depending on what you’re looking for, both trekking seasons
offer different benefits. The January to March season is generally colder and
there is a far higher chance of encountering snow on the upper reaches of the
mountain. Although the cold can put off some people, the benefit of trekking
during this period is that there are generally less people on the mountain
which can make for a more relaxing journey. If you encounter rain, it will
usually be on the lower slopes, however, above that the skies are generally
crystal clear.
The June to October period offers the best weather but also
coincides with summer holidays in both Europe and North America and can often
get quite busy!
Unless you enjoy the rain April, May and November should be
avoided as these are the wettest months and, therefore, not ideal for the
trekking populace. The coldest months are between December and May when
snowfall is likely.
Kilimanjaro Weather Forecast
In summary ...
2.
The average Kilimanjaro peak temperature is 0°C
3.
The temperature on Kilimanjaro can range up to
30°C in difference from base to summit
4.
There is snow on Mt Kilimanjaro and it doesn’t
rain at the summit, it snows
5.
The best time to climb Kilimanjaro is June –
October
6.
The best month to climb Kilimanjaro is July – in
our humble opinion!
7.
There are 5 distinct climate zones on
Kilimanjaro