San Diego enjoys near-perfect weather year-round with mild winters and warm, dry summers. The climate is Mediterranean with most rain falling in winter. Any month is good for visiting, though summer is most popular for beach activities.

Our analysis considers temperature ranges, rainfall patterns, crowd levels, accommodation costs, and seasonal events to provide you with a comprehensive view of when to visit San Diego. Be aware that this destination has a distinct rainy season that can affect travel plans.

Month-by-Month Breakdown

Month Weather Rain Crowds Cost Verdict
January 19°C / 10°C 50mm 🌧️
Good
February 19°C / 11°C 55mm 🌧️
Good
March 20°C / 12°C 45mm
Good
April 21°C / 14°C 20mm
Good
May 22°C / 16°C 5mm
Good
June 24°C / 18°C 0mm
Peak
Good
July 26°C / 20°C 0mm
Peak
Good
August 27°C / 21°C 0mm
Peak
Good
September 26°C / 20°C 5mm
Good
October 24°C / 17°C 15mm
Good
November 22°C / 13°C 35mm
Good
December 19°C / 10°C 45mm 🌧️
Good

Frequently Asked Questions

When is peak season in San Diego?
Peak season in San Diego typically runs during June, July, August. This is when you'll find the best weather and most tourist activity, but also the highest prices and largest crowds.
Is San Diego rainy during certain months?
Yes, San Diego has a rainy season. The wet months can see significant rainfall, which may affect outdoor activities. Check the month-by-month table below for specific rainfall data.
Is San Diego expensive to visit?
Prices in San Diego vary by season. Peak season months typically have the highest accommodation and activity costs. Visiting during shoulder or low season can save you money.
Can you visit San Diego in low season?
Yes, you can visit San Diego in low season. While weather conditions may be less ideal, you'll benefit from lower prices and fewer tourists. Some attractions may have limited hours.

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