The Amazon basin rain forest is hot and humid all year around with little variation from midsummer (December) and midwinter (June) due to Manu being only 12 degrees south of the Equator. Daytime temperatures regularly reach into the mid-thirties Celsius. In midwinter (June to mid-September) however, cold wind movements from the Patagonian plains move far enough north to affect the southern edge of the Amazon. These infrequent weather movements, known locally as "friajes", last from one to three days and temperatures at night can drop as low as 10C. We recommend you pack a sweater or light jacket "just in case".
Manu is a rainforest, even if it is a dry rainforest as rainforests go, and as such rain may be encountered at any time of year, however during the "dry season" from May to October there is a lot less than in the "wet season" from late November to April. A trip to Manu is feasible any month of the year. Biting insects are present in Manu, but less bothersome than mosquitoes in North America or midges in Scotland.
In the Andes and Cusco area, and especially on the horse-supported treks, temperatures can drop below zero at some of our high altitude camps and on occasions we have encountered snow. Mornings are generally warm and sunny, with temperatures in the mid 20's C and some cloud in the afternoons. Precipitation patterns in the mountains are the same as for Manu. From June to August, while winter days are typically sunny and warm with temperatures of 18-22 C, the temperature can drop to below freezing (-3° C) at night in our high camps, and rarely to colder. The Cusco area and surrounding mountains has well-defined seasons. Rain seldom falls during winter. From January to March, the summer months offer daytime temperatures to 30° C, milder nights (typically to 8 °C) and plenty of rain. Despite some rain, April and December is one of our favorite months for trekking, since the mountains are lush with sum¬mer flowers and you enjoy plenty of sunshine. Departures during Andean spring and fall offer weather patterns intermediate between these seasonal extremes.
Anyone who is in good general health can participate on a Manu or Andes trip.
Our vehicles are specially designed for the tough terrain and river transport is by roofed motorised dug-outs. Life jackets are provided and spare outboards are always taken as backup. In the mountains on treks, all our gear is carried by mules or porters accompanied by Quechua speaking wranglers. On rides a saddle mount and tack is provided for everyone so you can ride or hike as you like. Manu is isolated (there are un-contacted Amerindian groups just a few hours away). We do our best to make your trip as comfortable and interesting as possible. As in any remote area, a positive attitude and willingness to accept the unexpected as part of the experience is essential.