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San Diego, United States
US Citiesmixed

San Diego

United States

96

Excellent Match

September is an excellent time to visit San Diego — expect pleasantly warm days around 78°F (lows near 65°F), very little rain, abundant sunshine.

September Climate

78°HIGH
65°LOW
10.3hSUN/DAY
1dRAIN
76%HUMIDITY
70°WATER
Matched: Sep

Why This Matches

Based on your September search preferences

Temperature100/100

Avg highs of 78°F

Rainfall100/100

1 rain days expected

Sunshine100/100

10.3 hours of sunshine per day

Humidity56/100

76% average humidity

Year-Round Climate

Temperature

78°65°70°JFMAMJJASOND
Avg High (°F)
Avg Low (°F)
Water (°F)

Sunshine

10hJFMAMJJASOND
Sunshine (hrs/day)

Rainfall

1dJFMAMJJASOND
Rain days/month

Best Time to Visit San Diego

San Diego is a strong year-round destination, but February, April, June–July, and September–December edges ahead, with highs around 70°F, minimal rainfall, 9+ hours of daily sunshine.

Great
Good
Fair
Avoid

What to Pack

Based on September conditions in San Diego

👕

Light layers — t-shirts with a light jacket for evenings

🧴

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

September in San Diego

Flight prices unavailable for this route

Nightly hotel rates

Budget

$72–$120

Mid-Range

$168–$288

Luxury

$360–$720

Discover Events in San Diego

About San Diego

San Diego enjoys some of the finest weather in the United States, and its easygoing coastal lifestyle makes the most of it. Miles of beaches stretch along the coast, from the surf breaks and sea lions of La Jolla to the wide sands fronting the landmark hotel on Coronado. It is a relaxed, family-friendly city where the outdoors comes first.

There is more here than the shoreline. Balboa Park packs together gardens, museums, and the famous zoo in a Spanish-Revival setting, the revived Gaslamp Quarter drives the downtown dining and nightlife, and the city's proximity to the border gives it a strong Mexican influence and outstanding tacos. The beach towns each have their own laid-back character, and Baja California lies just to the south.

The weather is famously mild and sunny year-round, rarely too hot or too cold. Coastal clouds can gather in late spring and early summer, a local pattern known as May Gray and June Gloom, with the warmest, clearest conditions usually arriving in late summer and early fall.

surfingfoodfamilycraft-beerhikingswimming

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