If there is one good piece of advice we can give you, it is: always be prepared! The weather in this region is very unpredictable, so you never know when it will rain. It could be sunny one minute and then start to rain or even hail the next.
For every hike you take, you should make sure you have a rain jacket or light poncho.
The months in which it is most likely to rain are between December and February. These are also the quietest months in Cusco, so this could be your idea of heaven if you prefer to avoid the crowds. However, the Ausangate Trek is never really busy as such, so this doesn’t make much of a difference here.
January
You may not see as much sun this month as dark clouds are frequent in the sky. The amount of rain is increasing, but there will still be gaps in the cloud for the sun to shine through, heating up the area quickly. Heavier rains will keep things a bit cooler overall this month.
February
The rains are even more intense in February, and during this month, many of the other trekking routes are closed, including the Inca Trail. This is because the trails can get slippery and they do maintenance as well. If you decide to go trekking this month, you will find that the weather is quite cold due to the rains and the sky is quite cloudy. Make sure you are prepared with plenty of rain gear and boots with good grip.
March
This month is usually when it rains the most throughout the year, so pack accordingly. The weather turns a bit warmer in March. Keep in mind that the path could still be slippery from all the rains.
April
Fortunately, we are now coming to the end of the rainy season and there is a dramatic decrease in the amount of rain. However, there will still be occasional showers, so this month is included in the rainy season. The skies will be clearer for spectacular views, and during the day you will be warm.
November
At the beginning of November, the landscape looks quite dry because it hasn’t rained for several months. During this month the showers will begin, although they will be a bit sporadic and will not occur every day. The temperature is relatively warm during the day with quite cold nights.
December
In the Cusco region, this is the beginning of summer. But remember, in Ausangate, you are at a very high altitude and between the glaciers, so don’t expect it to be too hot. If the day is dry, it will feel warm in the sun. However, this is when the real downpours also begin. However, you will still be able to travel. Just bring raincoats and you’ll be fine.