San Juan Capistrano
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San Juan Capistrano Weather in September

September in San Juan Capistrano typically sees daytime highs of 29°C (84°F) and nighttime lows of 16°C (61°F). Minimal rainfall is typical for this month.

Rainfall in San Juan Capistrano in September

Looking at the last 30 years, the data shows about a single day with rain, averaging 3 mm (0.1 in) for the month. On the rare occasion it rains this month, it usually amounts to very little.

Temperature in San Juan Capistrano in September

San Juan Capistrano in September has excellent weather. Days reach 29°C (84°F) and nights cool to 16°C (61°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.

Sunshine in San Juan Capistrano in September

The month enjoys around 290 hours of sunshine, creating mostly sunny days with good weather conditions.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

San Juan Capistrano Temperature in September

Min Temperature
16°C (61°F)
Max Temperature
29°C (84°F)
Chance of Rain
3%
Precipitation
3 mm (0.1 in)
Rainy days
a single day
Sunshine
290 hours *
Percentage Sunshine
*
* Data from: Corona, the United States of America (42 KM, 26 Miles).

San Juan Capistrano Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Juan Capistrano - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in San Juan Capistrano in September

Warm but pleasant conditions in San Juan Capistrano in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in San Juan Capistrano in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

San Juan Capistrano 3-Day Forecast

More climate data for San Juan Capistrano

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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