Lake Titicaca
Peru
Long-term weather forecast
Long-term weather forecast
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Monthly weather forecast and Climate
Lake Titicaca, Peru

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The view of the beautiful Lake Titicaca in Peru, with the uniqueTotora boats afloat
The view of the beautiful Lake Titicaca in Peru, with the uniqueTotora boats afloat
Lake Titicaca has a climate that borders on the alpine and subtropical highland type (Köppen climate classification Cfb), with cool, dry summers and cold, wet winters. Lake Titicaca, the highest navigable lake in the world, lies in the Andes, with its western part in the Puno Region of Peru and the eastern part in the La Paz Department of Bolivia. The surface elevation of the lake is 3812 meters, which has a significant influence on its climate.

Lake Titicaca is the largest lake in South America by surface area and volume of water. Major rivers such as Suchez, Huancane, IIave, Coata, and Ramis along with numerous small streams, feed the lake. The lake has 41 islands and is almost closed, with only a single outlet at Rio Desaguadero. The average depth of the lake is 107 meters, while the shore length is a vast 700 miles. The ecosystem of the lake is vibrant, with a variety of marine plants and animals.

Summers are cool and wet in Lake Titicaca with average high temperatures around the 16.7°C (62.1°F) mark. The nights are cold even during the summer season due to the high elevation of the lake. Winters are cold and dry with average low temperatures well below the freezing mark. Mornings and afternoons are warm during the winter season, while the nights are freezing. Autumn and spring seasons are short, with warm days and cold nights. The day temperatures remain remarkably consistent throughout the year.

Lake Titicaca has a pronounced wet season from October to March and a dry season from April to September. The wet season contributes three-fourth of the annual rainfall of 609.6mm (24"). Lake Titicaca registers around 2900 hours of annual sunshine as the day temperatures remain warm even during the peak of winter. The nights are frosty during the winter, but the lake does not freeze as snowfall mostly occurs above the tree line in the Andes. The occasional El Niño effect can plummet Lake Titicaca temperatures to -20°C (-4°F) during the Southern Hemisphere winters.
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The best time to visit Lake Titicaca is from June to August, which is the winter season in the Southern Hemisphere. The temperatures vary widely between day and night during the cold season - the days are surprisingly warm, while the nights are cold and frosty. Importantly, it does not rain heavily, and there is plenty of sunshine during the day. The weather is crisp and clear in the absence of severely foggy conditions.

The worst time to visit Lake Titicaca is during the wet season, particularly from December to March when it rains heavily. The precipitation is heavy and can last for long periods that make the mountain paths slippery and dangerous. Many trails close during the peak of the wet season. Thunderstorms are frequent in the mountains during the summer, often accompanied by lightning.

Lake Titicaca is prone to severe thunderstorms and rainstorms, mainly during the summer. Torrential rain is common in the highlands, which can limit visibility to a few meters. The lake waters swell with a risk of floods in the neighboring areas during the wet season. Heavy rainfall can destroy crops in the region, as also severe droughts when the El Niño factor is active during a particular year.

Plenty of sunshine around 10 hours a day is a hallmark of the summer, but at the same time thunderstorms are frequent in the afternoons. Weather in January »

February is a wet month during the summer season at Peru and Bolivia shared Lake Titicaca with average temperatures in the 3.3°C (37.9°F) to 16.7°C (62.1°F) zone. Weather in February »

March is the last month of the wet season at Lake Titicaca as the region registers 99.1mm (3.9") of rainfall. The average temperatures are in the 2.8°C (37°F) to 16.7°C (62.1°F) range. Weather in March »

April is a transitional month at Lake Titicaca, which sees a significant decrease in rainfall. The change of seasons brings only 43.2mm (1.7") of rain to the highlands. Weather in April »

The days in May are warm but dry for a change, while the evenings and nights see a dramatic drop in temperatures that may go below -3.9°C (25°F). Weather in May »

June is the beginning of the winter in the Lake Titicaca region with the dry season at its peak. The rainfall is scarce, and the skies remain mostly bright and sunny. Weather in June »

July is the driest and coldest month of the year at Lake Titicaca with hardly a few scattered showers. The average temperatures are in the -7.8°C (18°F) to 16.1°C (61°F) range. Weather in July »

August is a cold winter month at Lake Titicaca with the average temperatures in the -5.6°C (21.9°F) to 17.2°C (63°F) range. The skies are mostly clear as the misty mornings clear quickly. Weather in August »

September is cloudy around Lake Titicaca with the average temperatures in the range of -1.1°C (30°F) to 17.8°C (64°F). The nights are occasionally drizzly, even though the days are warm and dry. Weather in September »

October is a transitional month at Lake Titicaca, Peru, as the beginning of the wet season brings moderate rainfall of 40.6mm (1.6"). Weather in October »

November is the warmest month of the year at Lake Titicaca, Peru, with the average high temperature at 18.9°C (66°F). Weather in November »

December is the beginning of the summer season at Lake Titicaca with warm days and cool nights. The average temperatures are in the range of 2.8°C (37°F) to 17.8°C (64°F). Weather in December »
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