What to Wear in London in July 2026
London in July: 24°C afternoons, 14°C mornings, 7 rain days, 209 sunshine hours — warmest, driest, sunniest month.
- Linen wrap dresses or cotton midis as the workhorse piece
- A linen camp shirt — open over a tank on hot days, buttoned on cool ones
- Wide-leg cotton trousers for museum days and dinner bookings
- Tailored cotton shorts (not gym) for 28°C+ heatwave afternoons
- Vans for big walking days — sandals can't do 7 miles to Greenwich
- A light cardigan for restaurant AC and 14°C evenings
- Heavy denim on heat-wave days — the un-AC Tube is brutal
- Leave the umbrella behind — afternoon rain is sudden
- Plan long walks 2-4pm during heat waves — museums, department stores, cafés all beat it
July is London's warmest month. Met Office climate data put the high at 23.8°C and the low at 13.9°C, with just 7 rain days (least of any summer month) and 209 sunshine hours — the sunniest month of the year. Heat waves occasionally push July into the low 30s, which the city handles with the grace of someone who did not prepare: the Tube gets brutal (no AC in old carriages), parks fill with people sprawled on lawns, and pubs open their beer gardens wide. Build a capsule that works at 25°C without falling apart at 14°C in the evening, or on the two days that week when rain returns. This is London's most wearable month: dresses, linen, sandals, and the lightest jacket you can pack because you'll still use it. The local style guide: linen midi dresses, Vans or sandals, a thin cardigan for the 6pm cool-down, a good compact umbrella because 'rain is almost always in the forecast.'
London's most wearable month: dresses, linen, sandals, and the lightest jacket you can pack because you'll still use it.
The capsule
01Linen wrap dress or cotton midiThe July London workhorse — one piece for an afternoon in Regent's Park, a gallery at Tate Modern, and a Marylebone dinner. Reformation, Sezane, or a decent high-street version all work.
02Linen camp shirtOpen over a tank on hot days, buttoned on cool ones. Linen says July London the way wool says November.
03Wide-leg cotton trousersThe breathing trouser. For museum days, dinner bookings, and any day you want to look slightly more polished than a dress.
04Tailored cotton shortsFor the 28°C+ days London gets two or three times in July. Tailored, mid-thigh, in a neutral. Not gym shorts. Most Londoners in their 20s-30s wear them on heatwave days.
05Light cardigan or linen blazerStill needed. Evenings drop to 14°C, restaurants run AC, and there's always the one day that stays at 18°C. Pack the lightest version you own.
06Vans + flat leather sandalsVans for big walking days (South Bank to Greenwich is 7 miles — sandals can't do 7 miles). Flat leather sandals for evenings and park days. Both locally accepted, neither a tourist giveaway.
07Structured straw or canvas bagA tote for a Portobello Saturday, a crossbody for the evening. Choose something with a zip — summer crowds on the Tube are pickpocket season.
08Sunglasses + compact umbrellaLondon July's duality: enough sun for SPF (which locals still forget to apply), enough chance of rain for an umbrella. Both, always.
Day to night
Camp shirt · cotton shorts · Vans · straw tote. Portobello Market in the morning, flat white at a Notting Hill café.
Wrap dress · flat sandals · linen blazer in bag · crossbody. Dinner at Rochelle Canteen, walk through the long evening light.
What to avoid
- Heavy denim on the hottest days — the un-AC Tube is the warmest you'll be in London
- Leaving the umbrella behind on clear mornings — July rain arrives unannounced
- Anything you'd call a winter coat — a blazer and scarf handle the coolest July day
- Bright athleisure for day outfits — a clean tee with linen shorts reads more local
- Long outdoor walks 2-4pm during heat waves — museums, department stores, cafés all beat it
Frequently asked questions
Per Met Office climate data: average high 23.8°C (75°F), low 13.9°C (57°F). About 7 rain days, just 36mm total rainfall — the driest summer month. Sunshine: 209 hours, the sunniest of the year. Heat waves push some days above 28°C, occasionally into the low 30s.
Average highs around 24°C, but heat waves can push into the low 30s. Most buildings, and the older Tube lines, have limited air conditioning — prepare for indoor warmth as well as outdoor. Modern hotels are usually AC'd; older B&Bs often are not.
It's the warmest and driest. Long daylight hours (16 hours), outdoor events (Proms, summer festivals, Wimbledon wrap-up), and pub gardens in full use. The trade-off: higher prices and tourist crowds at major attractions.
Smart casual: a nice dress, blouse with trousers, or a clean shirt and good shoes. The West End does not enforce a dress code but locals dress up slightly for an evening show. Theaters are air-conditioned — bring the layer you've been carrying all day.
Yes. July still averages 7 rain days. Shorter than winter rain but sometimes sudden and heavy. A compact umbrella in the bag is non-negotiable — every local carries one, even in a heat wave.