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What to pack for California in September
Typical September, built from ten years of weather
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Typical for your dates
Highs 82°F, lows 59°F, rain 1 of 30 days
hotwindyhigh UV
Sunset lands around 7:10pm. Wind averages 12 mph. No border paperwork on this one.
0 of 47 packed
Packing for
54 things on this list are on sale today
Essentials
10 items
UV index of 8.2 burns exposed skin in under 15 minutes.
Water reflection intensifies glare across the 12.4 daylight hours.
Coastal humidity and warmth extend insect season here.
Check ankles and, if there's a dog, paws and ears every night.
Hiking near national parks without a kit leaves injuries untreated.
Daylight lasts 12.4 hours, draining phone batteries on long outings.
Overhead bins fit carry-on bags on every domestic flight.
Day hikes near the park demand a bag for water and layers.
Fits the overhead on every airline that matters. Skip the checked-bag line entirely.
For the passport, the chargers, and the one dry pair of socks.
Before you go
2 to sort
Recommended
14 items
Anything heavier than linen is a mistake at 82°F.
Highs of 82°F mean sweat cools fast on moisture-wicking fabric.
UV hits 8.2 here. Long sleeves beat reapplying sunscreen every hour.
Coastal access and warm water make swimming viable most days.
Urban terrain and beach proximity call for easy footwear.
The sun stays high for 12.4 hours daily in September.
Cold water at 3pm is worth the weight.
Treat the clothes once and it lasts weeks.
Tap water is safe but carrying water saves time between refills.
One brick charges the laptop, phone, and camera.
Busy parks and transit stations increase luggage loss risk.
Organizing clothes in a small bag prevents wrinkles and saves space.
Coastal spray and beach time threaten unprotected phones.
One rain day means laundry stays dry and clothes stay fresh.
Nice to have
7 items you could skip
One rain day in September leaves shorts practical for 30 days.
Lips crack faster at UV 8.2 than at lower indices.
Urban areas and shared facilities make hand sanitizer essential.
Sunburned skin reacts badly to standard insect bite treatments.
Urban exploration means constant device charging throughout the day.
Domestic travel still requires TSA-compliant locks on checked bags.
Toiletries dry quickly in 61% humidity and warm air.
Basics
16 things you probably own already