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Willyman CC BY-SA 4.0 Wikimedia Commons

Lake Izabal

Lake

On Guatemala's Caribbean rim, Lake Izabal feeds the Río Dulce and meets Amatique Bay. Visitors come for boat trips, birdwatching and the 17th-century Castillo de San Felipe that guarded the waterway.

Lake Izabal Antigua GuatemalaLake AtitlánTikalGuatemala CitySemuc ChampeyLake Izabal
In this guide

Lake Izabal essentials

Country: Guatemala
Driest months: Feb-Apr
Pay in: Quetzal (Q)
Language: Spanish
Emergency: 110

Lake Izabal at a Glance

About Lake Izabal

Lake Izabal is the largest freshwater lake in Guatemala, located in the eastern part of the country in Izabal Department. It connects to the Caribbean Sea via the Río Dulce and has long been an important transport and ecological corridor.

Boat excursions, fishing and visits to historic sites are the main reasons people travel to the lake. The 17th-century Spanish fort at the lake’s outflow, riverside mangroves and mixed freshwater and coastal birdlife are typical highlights on day trips. Several rivers and wetlands feed the lake, and towns and lodges on its shores serve as bases for boat tours.

Spanish colonial authorities built fortifications at the lake’s outlet to protect the inland water route from pirates and foreign ships; the visible structure at that site dates from the 17th century. The lake has also supported local fishing and transportation for centuries and remains a focal point for regional commerce and tourism.

Geographically the lake sits in northeastern Guatemala, inland from the Caribbean coast, with the town of Río Dulce at its eastern outflow toward Amatique Bay. The surrounding landscape includes lowland rainforest, rivers and wetlands.

  • Size and access: The lake is Guatemala’s largest freshwater lake and is connected to the Caribbean Sea by the Río Dulce, making boat travel a primary way to explore its shores and wildlife.
  • Viewing times: Best light for photography and birdwatching is generally in the early morning or late afternoon when water and bird activity are most active.

What to See#

  • Castillo de San Felipe de Lara: A 17th-century Spanish fort built to guard the trade route between the lake and the Caribbean coast; it stands at the narrow point where the lake drains into the Río Dulce and is a common stop on boat tours.
When to Go

Best Time to Visit Lake Izabal

Visit Lake Izabal in the dry season (November-April) for easier boating and clearer weather along the lake.

Dry season
November-April · 24-30°C
Less rain and fewer mosquitoes - better for boating, fishing and lakeside exploration.
Wet season
May-October · 24-32°C
More frequent heavy rain and higher humidity; some rural roads and boat access can be affected by storms.

Weather & Climate near Lake Izabal

Climate

Lake Izabal's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 21°C to 33°C. Heavy rainfall (2579 mm/year), wettest in July.

Air Quality: AQI 67 Moderate
Temperature & Rainfall
Temperature Range
33°
Warmest Month
21°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 21° - 28° 24° 127 mm - - 1.6 m/s - -
February - 21° - 29° 25° 66 mm - - 1.7 m/s - -
March - 22° - 31° 27° 82 mm - - 1.7 m/s - -
April - 23° - 32° 28° 69 mm - - 1.7 m/s - -
May - 24° - 33° 28° 149 mm - - 1.5 m/s - -
June - 24° - 33° 28° 336 mm - - 1.3 m/s - -
July - 24° - 32° 28° 450 mm - - 1.3 m/s - -
August - 24° - 32° 28° 370 mm - - 1.2 m/s - -
September - 24° - 32° 28° 362 mm - - 1.1 m/s - -
October - 23° - 31° 27° 248 mm - - 1.1 m/s - -
November - 23° - 29° 26° 189 mm - - 1.2 m/s - -
December - 22° - 28° 25° 131 mm - - 1.3 m/s - -
Getting There & Around

How to Get to Lake Izabal

Lake Izabal (Lago de Izabal) is reached by road from Puerto Barrios and from the Río Dulce area; boat services on the Río Dulce provide water access to lakeside communities such as Livingston and El Estor. Roads from the Caribbean ports and Río Dulce lead to landing points on the lake.

Tips for Visiting Lake Izabal

  • Access Lake Izabal by combining a boat trip from Río Dulce to Livingston-early morning departures offer calmer water and better chances to see birdlife and shoreline communities before winds pick up.
  • Plan a stop at Castillo de San Felipe de Lara (at the lake's western outlet) as part of a route through Río Dulce; many visitors overlook the short fort visit when transiting between Livingston and Puerto Barrios.
  • If you want quieter shorelines and local culture, visit smaller lakeside Garífuna communities around Livingston on weekdays rather than weekend mornings when local and tourist traffic peaks.