Few travelers know that the Amazon has a beach. Not the Caribbean beach of palm trees and fine sand — but something more surprising: kilometers of white sand emerging directly from the banks of the largest river in the world, visible only when the water goes down during the summer in the Colombian Amazon.
This is the guide you need to understand what's happening this season, when to go and how to make the most of it.
What is the Amazon Summer?
In the Amazon there is no summer in the conventional sense — there is no season of months of permanent sun opposed to months of intense rain. What exists is a hydrological cycle determined by rainfall in the Peruvian Andes that raises and lowers the level of the Amazon River in a predictable manner each year.
When that level drops — between June and November, with the lowest point in September — it is called Amazonian summer or emptying season. And the transformation of the landscape is radical: the low jungle that was flooded in winter reappears, the paths dry out and the river returns its banks in the form of beaches.
The Baja River: What Changes and Why
The Amazon River can vary up to 8 meters between its highest level (April, in flood) and its lowest level (September, in summer). Those 8 meters change everything.
With the river low:
- The sandy shores are exposed — the beaches of the Amazon
- The lowland jungle trails remain dry and passable
- Fish and aquatic fauna are concentrated in the main channels
- River access to certain areas requires more walking from the pier
Summer Weather: Without Myths
Let's clarify something important: in the Amazon it rains every day, in any season. The Amazon summer is not a season without rain — it is a season with less variation in river level.
What does change in summer is the pattern: a downpour lasting approximately one hour a day, which falls (it can be in the morning, afternoon or night), stops, and the sky clears. The rest of the day is usually sunny. That's significantly different than the longer rains that can occur in winter.
Temperature: 25°C–32°C under normal conditions. In August and September it can reach 37°C with a thermal sensation of 40°C or more. The Amazonian sun on boat tours is unforgiving — SPF 50+ sunscreen is mandatory.
The Beaches of the Amazon: The Great Discovery
The best kept secret of the Amazon summer is its beaches. In front of Leticia, in front of Puerto Nariño, along the river and its tributaries — white sands that emerge between July and November and disappear completely when the water rises.
They are not tourist beaches. They are silent natural spaces where the only backdrop is the jungle and the river. You can swim, rest, take photography at sunset. An experience that simply does not exist in the Amazon winter and that surprises almost all travelers who discover it.
Concentrated Fauna: Easier to See
In winter, pink and gray dolphins disperse across kilometers of flooded jungle following the fish. In summer the water goes down and both fish and dolphins concentrate in the main channels — the Amazon River, Lake Tarapoto, the navigable tributaries.
Practical result: dolphin watching from the boat is more consistent and predictable in summer. Experienced guides know exactly where to look for them on Lake Tarapoto at every hour of the day.
The same goes for birds — the riverside vegetation is less dense, the viewing angle from the boat is better, and the brighter light of clear days makes for better photography.
Advantages of the Amazon Summer
Exclusive river beaches: Only between July and November. Swim in the Amazon, watch the sunset from the shore with the jungle behind.
Accessible trails: Walks through the jungle without water up to your knees. For those who want to explore the jungle on foot, summer is the ideal season.
More predictable sighting: Dolphins, birds and aquatic fauna more concentrated and easier to locate.
Best photography: More natural light, clearer skies, better conditions to capture the Amazon.
Sport fishing: The concentration of fish makes piranha fishing in the Lakes of Tarapoto at its best.
Limitations you should know
August is high season: Greater tourist influx, more expensive flights, tours with more people. July or October are just as good with less crowds.
Without kayaking in the flooded jungle: Kayaking between the trees of the flooded várzea — the most exclusive activity in the Amazon winter — is not available in summer because there is not enough water.
Intense heat: At the peak of summer (August–September) the midday hours are very hot. A good tour works mornings and afternoons for the main activities.
Month-by-Month Guide
| Month | River level | What you find | Recommended days |
|---|---|---|---|
| June | Going down | First beaches, transition | 5 |
| July | Low | Visible beaches, dry trails | 5 |
| August | Very low | Maximum beaches, fauna concentrated | 4 |
| September | Annual minimum | Maximum summer, intense heat | 4 |
| October | Starting to rise | Fewer tourists, same activities | 4 |
| November | Going up | Transition, first channels | 4–5 |
Summer Star Activities
Amazon River beaches: Swim, rest, photograph the sunset. July-November only.
Sighting of pink and gray dolphins: Tour to Puerto Nariño and Lake Tarapoto departing at 7 am from the civil port of Leticia. The best season to see them from a boat.
Jungle walks: The trails are in their best condition. With guides who know the mainland, available all year round.
Piranha fishing: In the Lakes of Tarapoto. The best season for this activity.
Night Safari: Alligators, nocturnal fauna, sounds of the jungle. The dry summer trails make the experience more comfortable.
Parrot show in Santander Park: Free, daily, at 5 pm. The summer evening light makes for especially good photos.
Tree climbing (Tanimboca or Omagua): 11 km from Leticia. Rappelling, zip lining and hanging bridges up to 35 meters high. Available all year round.
Luggage for the Amazon Summer
25–30 liter backpack — never a large suitcase. To get to the river you have to walk.
Essentials for summer:
- Sunscreen SPF 50+ (double amount in summer — more intense sun)
- DEET 30%+ repellent
- Light-colored, quick-drying long-sleeved clothing
- Wide-brimmed hat
- Rubber boots (not trekking)
- Rain poncho (it rains one hour a day in any season)
- Waterproof dry bags
- Flashlight and powerbank
- Swimsuit (for river beaches)
- Cash in Colombian pesos
First Time? Come in Summer
If it is your first visit to the Amazon and you have a choice, the Amazon summer is the most comfortable gateway. The dry trails, the river beaches, the concentrated fauna and the best light make the experience more accessible for those who arrive to the jungle for the first time.
The second visit can already be in winter — when the river rises, the jungle floods and the Amazon shows a completely different dimension.
Frequently Asked Questions
When is the Amazon summer in Colombia? From June to November, with the lowest point in September. The river begins to decline in June and begins to recover in November.
Does it rain a lot in the Amazon summer? In the Amazon it rains approximately one hour a day in any season. The rainfall pattern does not change between summer and winter — what varies is the level of the river, not Leticia's local rainfall.
How many days do I need for the Amazon summer? 4 days is ideal. In July or November you can extend to 5. More than 5 in the middle of summer can become repetitive because kayaking in flooded jungle is not available.
Can you swim in the Amazon River in summer? Yes. Between July and November, natural beaches emerge in front of Leticia and Puerto Nariño where it is possible to swim with the supervision of the guide.
Is August the best month of the Amazon summer? August is the most touristy month — maximum beaches but also more people and more expensive flights. July or October offer practically the same experience with less crowds.
*Write us at leticia.travel to plan your summer in the Amazon.*
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