London Packing List: Seasonal Clothing and Essentials Guide

Quick answer

Pack a compact umbrella, a portable power bank, and comfortable waterproof walking shoes for daily distances of 10,000 to 20,000 steps. Ensure you have a contactless payment method for the Tube and layers for temperatures ranging from 2°C (36°F) in January to 23°C (73°F) in July. A Type G three-pin UK power adapter is mandatory for all electronics.

Seasonal clothing and temperature ranges

London weather is famously unpredictable, often shifting between rain and sun multiple times a day. Dressing in layers allows for transitions between outdoor walking and the often-overheated London Underground (Tube) carriages.

Spring (March to May)

Temperatures average between 6°C (43°F) and 15°C (59°F). March remains brisk, requiring a mid-weight coat. By May, lighter jackets are suitable, but waterproof outer layers are essential as spring showers are frequent.

Summer (June to August)

Expect averages of 13°C (55°F) to 23°C (73°F). Heatwaves can push temperatures above 30°C (86°F). Many hotels and older Tube lines, like the Central or Northern lines, do not have air conditioning. Pack breathable fabrics like linen or cotton. Always carry a light jumper or cardigan for the evening when temperatures drop.

Autumn (September to November)

Temperatures range from 9°C (48°F) to 18°C (64°F) in September, dropping to 5°C (41°F) to 10°C (50°F) in November. This is the wettest season. A trench coat or a waterproof parka with a hood is more practical than an umbrella in high winds.

Winter (December to February)

Temperatures hover between 2°C (36°F) and 9°C (48°F). While snow is rare, the damp cold feels biting. Pack a heavy wool coat or down jacket, thermal base layers, a scarf, gloves, and a hat.

Cultural dress rules and etiquette

London is generally informal, but specific sites and experiences have strict requirements.

Religious sites

When visiting St Paul’s Cathedral or Westminster Abbey, dress modestly. While there is no formal 'no shorts' rule like in the Vatican, extremely revealing clothing may be considered disrespectful. Covering shoulders and wearing knee-length skirts or trousers is recommended. Remove hats when entering these buildings.

Fine dining and theatre

Most West End theatres do not have a formal dress code; 'smart-casual' is standard. However, high-end restaurants in Mayfair or The City often require a jacket for men and no trainers (sneakers). If attending Afternoon Tea at The Ritz or The Savoy, expect a formal dress code: no ripped jeans, no sportswear, and no flip-flops. Check the official venue website for specific requirements.

Electronics and connectivity

• Plug Adapters: The UK uses the Type G plug (three rectangular prongs). The standard voltage is 230V and the frequency is 50Hz.
• Power Bank: Navigating via Citymapper or Google Maps drains batteries quickly. A 10,000mAh power bank is sufficient for a full day.
• SIM Cards: Pick up a local SIM from Heathrow Airport or a local shop like EE, O2, or Vodafone. A 10GB data plan costs approximately £15-£25 ($19-$32 USD). Alternatively, use an eSIM (like Airalo or Holafly) for immediate data upon arrival.

Documents and visa notes

• Passports: Must be valid for the duration of your stay. Check expiry dates at least six months before travel.
• Visas: Citizens of the USA, Canada, Australia, and the EU do not currently require a visa for stays under six months for tourism. Check the GOV.UK website for the latest Electronic Travel Authorisation (ETA) requirements, as these are being phased in for different nationalities.
• Payment: London is almost entirely cashless. Bring a contactless credit/debit card or set up Apple Pay/Google Pay. You can use these to 'tap on' at Tube barriers and on buses. A physical Oyster card costs £7 ($9 USD) as a refundable deposit but is largely unnecessary if you have contactless payment.

Health items

• Walking Support: A 15-minute walk between stations like Leicester Square and Covent Garden is common. Pack blister plasters (Compeed) and high-quality walking socks.
• Medication: Over-the-counter items like Paracetamol (acetaminophen) and Ibuprofen are available at pharmacies (Boots or Superdrug) for less than £1 ($1.30 USD). If you have a prescription, carry it in its original packaging with a copy of the script.
• Hydration: Tap water in London is safe to drink. Carry a reusable water bottle to fill at public fountains or 'Refill' stations.

Packing checklist

• [ ] Passport and travel insurance details
• [ ] Type G UK power adapter
• [ ] Portable battery pack
• [ ] Contactless payment card or mobile wallet
• [ ] Waterproof jacket or compact umbrella
• [ ] Comfortable, broken-in walking shoes
• [ ] Reusable water bottle
• [ ] Daypack with anti-theft zips for crowded areas
• [ ] Scarf (useful for wind and conservative sites)
• [ ] Small first-aid kit with blister pads

Common mistakes

• Packing a heavy umbrella: High winds in the City of London often flip cheap umbrellas. A sturdy, wind-resistant model or a quality raincoat is better.
• Buying a Daily Travelcard: Unless you do not have a contactless card, a paper Daily Travelcard is usually more expensive than the daily cap applied to contactless or Oyster payments.
• Bringing high heels for sightseeing: The cobblestones in areas like Covent Garden or Greenwich are hazardous in heels. Stick to flat, supportive shoes.
• Relying on cash: Many shops and pubs, especially in East London or Soho, no longer accept cash at all.
• Overpacking heavy winter gear in summer: Even if the forecast mentions rain, summer temperatures rarely justify a heavy coat.

Plan your trip

Our Journey Planner integrates these packing essentials into a customised itinerary. By inputting your travel dates, the tool provides real-time weather forecasts for specific London boroughs, calculates total transport costs based on current Transport for London (TfL) fares, and generates a day-by-day packing list tailored to your planned activities—whether that is a walking tour of the Tower of London or a formal dinner in The Shard. Check the official TfL site for live service updates before you travel.

How much does a SIM card cost in London?

A prepaid SIM card with 10-20GB of data typically costs between £15 and £25 ($19-$32 USD) from major providers like EE or Vodafone. You can buy these at Heathrow or at shops on most high streets.

Do I need a suit for London theatres?

No, there is no formal dress code for West End theatres. Smart-casual attire, such as trousers and a shirt or a casual dress, is perfectly acceptable. Avoid overly muddy footwear if possible.

Can I use a US hair dryer in London?

Only if it is dual-voltage (110V/230V). Most US hair dryers are single-voltage and will blow a fuse or catch fire even with a plug adapter. Most London hotels provide hair dryers.

Is tap water free in London restaurants?

Yes, by law, licensed premises (restaurants and pubs that serve alcohol) must provide free tap water to customers upon request.