San Francisco Weather

Microclimate Guide

Mediterranean climate / Cool summers / Foggy mornings

Average temperature: 57°F (14°C) | Annual rainfall: 23 inches

Climate Seasonal

Weather Tip: San Francisco's unique microclimates mean weather can vary dramatically between neighborhoods. Always carry layers when visiting.

Seasonal Weather Patterns

1Summer (June-August)

Summer brings cool temperatures and frequent fog.

Average highs: 65-70°F (18-21°C)

2Fall (September-November)

Fall features warmer days and less fog.

Warmest months: September-October

3Winter (December-February)

Winters are mild and rainy.

Average lows rarely below 45°F (7°C)

4Spring (March-May)

Spring brings sunny days and blooming flowers.

Rain tapers off by April

Pro Tip: The famous "Karl the Fog" is most common in summer mornings, typically burning off by afternoon.

1Downtown/South of Market

Generally warmer and sunnier than western neighborhoods.

Less fog, more wind protection

2Sunset/Richmond Districts

Famous for persistent fog and cooler temperatures.

Often 10°F cooler than downtown

3Mission District

Typically warmer and drier than most areas.

Microclimate created by hills

1Summer Fog

The marine layer creates famous summer fog.

Most common June-August mornings

2Indian Summer

September-October often bring warmest temperatures.

Locals call it "San Francisco summer"

3Rainy Season

Most rain falls November-March.

January is typically wettest month

4Wind Patterns

Afternoon westerly winds are common.

Strongest near the coast

Remember: The Golden Gate Bridge area is often windier and foggier than other parts of the city.