San Diego Weather

Year-Round Guide

Mediterranean Climate / Mild Winters / Warm Summers

Average Temperature: 70°F (21°C) | Annual Rainfall: 10 inches

Climate Forecast

WeatherPro Tip: San Diego enjoys one of the most pleasant climates in the United States with minimal temperature extremes.

Seasonal Weather Patterns

1Winter (Dec-Feb)

Daytime temperatures average 65°F (18°C).

Cool nights around 50°F (10°C).

2Spring (Mar-May)

Perfect weather with 70-75°F (21-24°C).

May Gray/June Gloom morning clouds.

3Summer (Jun-Aug)

Warm 78°F (26°C) at coast, hotter inland.

Low humidity makes heat comfortable.

4Fall (Sep-Nov)

Warmest months with 80°F+ (27°C+).

Santa Ana winds possible.

WeatherPro Tip: The coastal areas are typically 10-15°F cooler than inland valleys during summer months.

1Marine Layer

Morning clouds that burn off by afternoon.

Most common in May-June.

2Santa Ana Winds

Hot, dry winds from eastern deserts.

Increases wildfire risk.

3El Niño Effects

Brings wetter winters to region.

Higher surf and erosion.

1Best Time to Visit

September-November offers ideal conditions.

Warm days, cool nights, minimal rain.

2Water Temperature

Pacific Ocean averages 60-70°F (16-21°C).

Warmest in August-September.

3Microclimates

Temperature varies greatly by location.

Coast vs. inland vs. mountains.

4Rainfall Patterns

Most rain falls November-March.

Summer is virtually rain-free.

WeatherPro Tip: Always bring layers when visiting San Diego - coastal areas can be cool even in summer.