Lake Izabal

Lake Guatemala's largest lake, Caribbean watershed outlet

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.

Main image

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.
Lake Izabal
15.5000, -89.1667

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.

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.

Temperature & Rainfall
Temperature Range
33°
Warmest Month
21°
Coldest Month
Monthly Conditions

January

January is warm with highs of 28°C and lows of 21°C. Significant rainfall (127 mm).

Comfort

24°
Feels Like Warm
24°C
Temperature
21° 28°

Weather

127 mm
Rainfall
1.6 m/s
Wind
Calm

February

February is warm with highs of 29°C and lows of 21°C. Moderate rainfall (66 mm).

Comfort

25°
Feels Like Warm
25°C
Temperature
21° 29°

Weather

66 mm
Rainfall
1.7 m/s
Wind
Calm

March

March is warm with highs of 31°C and lows of 22°C. Regular rainfall (82 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
22° 31°

Weather

82 mm
Rainfall
1.7 m/s
Wind
Calm

April

April is warm with highs of 32°C and lows of 23°C. Moderate rainfall (69 mm).

Comfort

28°
Feels Like Warm
28°C
Temperature
23° 32°

Weather

69 mm
Rainfall
1.7 m/s
Wind
Calm

May

May is the hottest month with highs of 33°C and lows of 24°C. Significant rainfall (149 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
24° 33°

Weather

149 mm
Rainfall
1.5 m/s
Wind
Calm

June

June is the hottest month with highs of 33°C and lows of 24°C. Heavy rain (336 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
24° 33°

Weather

336 mm
Rainfall
1.3 m/s
Wind
Calm

July

July is warm with highs of 32°C and lows of 24°C. The wettest month with heavy rain (450 mm).

Comfort

28°
Feels Like Warm
28°C
Temperature
24° 32°

Weather

450 mm
Rainfall
1.3 m/s
Wind
Calm

August

August is hot with highs of 32°C and lows of 24°C. Heavy rain (370 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
24° 32°

Weather

370 mm
Rainfall
1.2 m/s
Wind
Calm

September

September is hot with highs of 32°C and lows of 24°C. Heavy rain (362 mm).

Comfort

28°
Feels Like Hot
28°C
Temperature
24° 32°

Weather

362 mm
Rainfall
1.1 m/s
Wind
Calm

October

October is warm with highs of 31°C and lows of 23°C. Heavy rain (248 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
23° 31°

Weather

248 mm
Rainfall
1.1 m/s
Wind
Calm

November

November is warm with highs of 29°C and lows of 22°C. Significant rainfall (189 mm).

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°

Weather

189 mm
Rainfall
1.2 m/s
Wind
Calm

December

December is warm with highs of 28°C and lows of 22°C. Significant rainfall (131 mm).

Comfort

25°
Feels Like Warm
25°C
Temperature
22° 28°

Weather

131 mm
Rainfall
1.3 m/s
Wind
Calm

Nearby Attractions to Lake Izabal