What is the best month to visit San Diego?

Based on historical climate data, the best months to visit San Diego are August, July, and September, with highs around 78°F, only 1 rain days, 11.3 hours of daily sunshine.

What is the weather like in San Diego in summer?

San Diego in summer (June–August) has average highs of 76°F, about 1 rain days per month, 77% humidity.

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US Citiesmixed

San Diego

United States

Excellent Match

👍May is a great time to visit San Diego — expect mild days around 68°F (lows near 57°F), minimal rain, abundant sunshine.

May Climate

68°HIGH

57°LOW

10.7hSUN/DAY

3dRAIN

75%HUMIDITY

63°WATER

San Diego

Matched: May

Why This Matches

Based on your May search preferences

Temperature100/100

Avg highs of 68°F

Rainfall95/100

3 rain days expected

Sunshine100/100

10.7 hours of sunshine per day

Humidity76/100

75% average humidity

Year-Round Climate

Temperature

Avg High (°F)

Avg Low (°F)

Water (°F)

Sunshine

Sunshine (hrs/day)

Rainfall

Rain days/month

Best Time to Visit San Diego

San Diego is a strong year-round destination, but February and April–December edges ahead, with highs around 75°F, minimal rainfall, 10+ hours of daily sunshine.

Great

Good

Fair

Avoid

What to Pack

Based on May conditions in San Diego

🧥

Layered clothing — mornings and evenings can be cool

🧴

High SPF sunscreen, sunglasses, and a hat — strong sun expected

May in San Diego

Flight prices unavailable for this route

Nightly hotel rates

Budget

$66–$110

Mid-Range

$154–$264

Luxury

$330–$660

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About San Diego

Near-perfect weather year-round, a laid-back surf culture, and one of America's best craft beer scenes. San Diego pairs beautiful Pacific beaches with a booming food scene and easy access to Mexico just across the border.

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