What to pack for San Francisco in June

UV index hits 10.9 in June, and 14.8 hours of daylight means constant exposure.

Glare bounces off water and pavement when the sun stays out past 9 p.m.

Summer in the city brings mosquitoes near the bay and Golden Gate Park.

Check ankles and, if there's a dog, paws and ears every night.

A long day outdoors at high UV means sunburn, blisters, and minor scrapes happen.

Daylight lasts nearly 15 hours, so your phone dies before the day ends.

Domestic travel means carry-on is enough for a multi-day San Francisco trip.

Wind gusts to 30 km/h and fog roll in fast, so layers and supplies need to stay within reach.

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.

Coastal wind cuts through a t-shirt fast.

Wind at 30 km/h off the bay cuts through layers, so a neck gaiter blocks the chill.

UV hits 10.9 here. Long sleeves beat reapplying sunscreen every hour.

Fourteen hours of daylight with UV at 10.9 leaves no safe time to skip a hat.

Treat the clothes once and it lasts weeks.

Tap water is safe but you'll walk 14.8 hours of daylight and need to stay hydrated.

One brick charges the laptop, phone, and camera.

Urban crowds at parks and transit stations make bag theft a real risk.

A backpack stuffed with layers for wind, sun gear, and a full day's supplies needs organization.

Walking 14.8 hours daily means clothes need washing every two days in summer.

Lips crack fast in coastal wind and high UV without protection.

Urban surfaces and public transit require a quick hand wash before eating.

Insect bites itch worse when skin is already burned from 10.9 UV.

A long day of sightseeing means your devices need charging mid-afternoon.

Hostels and shared accommodations need luggage secured while you're out all day.

A guesthouse bathroom shared with others means a hanging bag keeps your toiletries separate.