Lake Merced

Lake Coastal freshwater lake adjacent to San Francisco parks

Urban freshwater lake in southwest San Francisco near Ocean Beach and the zoo; frequented for walking trails, birdwatching and nearby golf and parks.

Main image

Lake Merced is a freshwater lake in the southwestern quadrant of the City and County of San Francisco, California. It is one of the city’s principal natural waterbodies and is surrounded by parks, golf courses and residential areas.

The lake is used for fishing, running and shoreline walks, and serves as an urban green space within San Francisco. Visitors commonly combine a lake visit with nearby attractions such as the San Francisco Zoo and coastal parks.

The lake is a natural feature that has been managed within the city’s open-space and recreation plans; shoreline areas include trails and managed greenbelt spaces. Its urban setting means access is by city roads and local transit.

Geographically it sits in southwestern San Francisco, a short distance inland from the Pacific Ocean, bordered by the Sunset District and city open-space areas.

  • Nearby attractions: Located in the southwestern part of San Francisco, the lake sits adjacent to the San Francisco Zoo, the Lake Merced Golf Club and is close to coastal parks such as Fort Funston.
  • Recreation: The area offers shoreline trails and birdwatching; parts of the lake and its surroundings are managed for open space and recreation within the city limits.
Lake Merced
Lake Merced, San Francisco, CA - near Sloat Boulevard and Skyline Boulevard
37.7180, -122.4931
Open 24 hours
Free

How to Get to Lake Merced #

By car: access via Lake Merced Boulevard or John Muir Drive off Sloat Boulevard. Public transit: MUNI bus routes (e.g., 23, 48) connect the lake area to central San Francisco.

Tips for Visiting Lake Merced #

  • For birdwatching and calm waters, arrive early at Lake Merced's northern lakeshore near John Muir Drive.
  • If planning to fish, check California Department of Fish and Wildlife regulations and local posting for permitted spots.
  • Use the parking areas along Lake Merced Boulevard to access walking trails; some stretches are part of San Francisco's protected greenbelt.

Best Time to Visit Lake Merced #

Spring and autumn usually deliver the best combination of bird activity, manageable winds and agreeable temperatures.

Spring-early summer
April-June · 10-18°C (50-65°F)
Mild temperatures and migrating birds make the shoreline lively.
Autumn
September-November · 12-20°C (54-68°F)
Clearer skies and calmer winds; good for long walks and photography.

Weather & Climate near Lake Merced #

Climate

Lake Merced's climate is classified as Warm-Summer Mediterranean - Warm-Summer Mediterranean climate with mild summers (peaking in September) and cool winters (coldest in January). Temperatures range from 7°C to 22°C. Moderate rainfall (801 mm/year) with a pronounced dry season.

Temperature & Rainfall
Temperature Range
22°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 14°C and lows of 7°C. The wettest month with heavy rain (165 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
14°

Weather

165 mm
Rainfall
3.8 m/s
Wind
Light Breeze

February

February is cool with highs of 16°C and lows of 8°C. Significant rainfall (140 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
16°

Weather

140 mm
Rainfall
4.1 m/s
Wind
Light Breeze

March

March is cool with highs of 17°C and lows of 8°C. Significant rainfall (121 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
17°

Weather

121 mm
Rainfall
4.5 m/s
Wind
Light Breeze

April

April is cool with highs of 18°C and lows of 8°C. Moderate rainfall (49 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
18°

Weather

49 mm
Rainfall
4.8 m/s
Wind
Light Breeze

May

May is cool with highs of 19°C and lows of 10°C. Light rainfall.

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 19°

Weather

18 mm
Rainfall
5.0 m/s
Wind
Light Breeze

June

June is cool with highs of 20°C and lows of 11°C. Almost no rain.

Comfort

15°
Feels Like Cool
15°C
Temperature
11° 20°

Weather

5 mm
Rainfall
5.0 m/s
Wind
Light Breeze

July

July is cool with highs of 21°C and lows of 11°C. The driest month with just 3 mm.

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 21°

Weather

3 mm
Rainfall
4.6 m/s
Wind
Light Breeze

August

August is cool with highs of 21°C and lows of 12°C. The driest month with just 3 mm.

Comfort

16°
Feels Like Cool
16°C
Temperature
12° 21°

Weather

3 mm
Rainfall
4.3 m/s
Wind
Light Breeze

September

September is cool with highs of 22°C and lows of 12°C. Light rainfall.

Comfort

17°
Feels Like Cool
17°C
Temperature
12° 22°

Weather

11 mm
Rainfall
3.9 m/s
Wind
Light Breeze

October

October is cool with highs of 21°C and lows of 11°C. Moderate rainfall (48 mm).

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 21°

Weather

48 mm
Rainfall
3.7 m/s
Wind
Light Breeze

November

November is cool with highs of 18°C and lows of 9°C. Significant rainfall (109 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
18°

Weather

109 mm
Rainfall
3.7 m/s
Wind
Light Breeze

December

December is cool with highs of 15°C and lows of 7°C. Significant rainfall (129 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
15°

Weather

129 mm
Rainfall
3.8 m/s
Wind
Light Breeze

Nearby Attractions to Lake Merced