London’s weather is famously unpredictable—it’s entirely possible to experience sunshine, wind, and rain all in a single afternoon. The packing mantra for any trip to the UK capital is simple: Layers, Layers, Layers.
Below is your definitive guide, organized by season, plus a list of essential items you need no matter the time of year.
Season-by-Season Essentials
Spring (March, April, May)
Spring is lovely, with the parks starting to bloom, but the weather is highly variable and can turn cold or wet quickly. March and April are historically two of London’s driest months, but rain is still common.
| Weather Profile | Average High: 53∘F–64∘F (12$^\circ\text{C}$–18∘C) |
| Outerwear | Trench Coat or Lightweight Waterproof Jacket. Essential for sudden rain showers. |
| Layers | Cardigans, Light Sweaters, or Fleece. Easily removable layers are key, as buildings and the Tube can be warm. |
| Footwear | Waterproof or Water-Resistant Comfortable Walking Shoes/Sneakers. A must-have for long days on wet sidewalks. |
| Accessories | A Compact Travel Umbrella. A British essential, even if the forecast looks clear. Scarf (lightweight for style and warmth). |
Summer (June, July, August)
Summer offers the longest days and warmest temperatures, but humidity and occasional heavy rain showers are still a factor. The Tube can become extremely hot, so dress for heat underground.
| Weather Profile | Average High: 70∘F–75∘F (21$^\circ\text{C}$–24∘C) |
| Outerwear | Light Jacket or Denim Jacket. Necessary for cool evenings, especially if dining outdoors or walking by the Thames. |
| Layers | T-Shirts, Light Blouses, Tank Tops. Choose breathable fabrics like cotton or linen. |
| Footwear | Comfortable Sneakers or Sandals. Avoid flip-flops, as you’ll be walking many miles on unforgiving pavement. |
| Accessories | Sunglasses (essential for bright days). Sunscreen (UV index can be surprisingly high). Reusable Water Bottle (to combat heat on the Tube). |
Autumn (September, October, November)
Autumn is one of the wettest periods, especially October and November. Temperatures drop sharply after September, but the parks offer beautiful foliage.
| Weather Profile | Average High: 68∘F–53∘F (20$^\circ\text{C}$–12∘C) |
| Outerwear | Medium-Weight Waterproof Coat. Something warmer than a trench, as the cold bite begins in November. |
| Layers | Sweaters (Jumpers) and Long-Sleeved Shirts. Wool or fleece jumpers are perfect for the “sweater weather” vibe. |
| Footwear | Waterproof Ankle Boots or Sturdy Waterproof Sneakers. You need solid protection against wet streets and muddy parks. |
| Accessories | Sturdy Umbrella. November has historically high rainfall. A stylish, thicker Scarf is both fashionable and practical. |
Winter (December, January, February)
Winter is cold, damp, and dark (sun sets around 4:30 PM), but heavy snowfall is rare. The biggest challenge is staying dry and warm from the persistent cold.
| Weather Profile | Average High: 47∘F–50∘F (8$^\circ\text{C}$–10∘C) |
| Outerwear | Heavy, Insulated Winter Coat. Essential for warmth. A hood is a bonus. |
| Layers | Thermal Base Layers (long underwear/undershirts, especially for long outdoor tours), thick Wool Sweaters, and Fleece. |
| Footwear | Warm, Waterproof Boots. Crucial for keeping feet dry against rain and damp air. |
| Accessories | Hat (Beanie), Gloves, and a Thick Scarf. Don’t underestimate how much heat you lose through your extremities. |
Essential Year-Round Packing List (The Non-Negotiables)
No matter the month you visit, these items are critical for a successful, secure, and comfortable trip:
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Comfortable Walking Shoes: You will walk miles exploring London. Leave the heels at home (unless strictly needed for a formal event) and pack durable, comfortable, and supportive footwear.
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Universal UK Plug Adapter (Type G): British outlets use three large rectangular pins. You absolutely need a Type G adapter for your electronics. (A voltage converter is only necessary for US items like hair dryers that are not dual-voltage).
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Waterproof Layer: Either a Compact Travel Umbrella or a Lightweight Packable Rain Jacket. One or the other is required 365 days a year.
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Cross-Body Bag / Day Bag: Opt for a bag with a zip closure for security in crowded tourist areas (like Covent Garden and the Tube) to deter pickpockets.
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Small Bag for Shopping: London charges for plastic bags, so bring a small, foldable reusable tote bag for shopping or groceries.
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Portable Power Bank: Using GPS for walking directions and tapping your phone for Tube fares will drain your battery. A portable charger is essential for all-day sightseeing.
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Smart Casual Outfit: London is stylish. Pack one “nicer” outfit (dark jeans/trousers, smart shirt/dress) for theatre evenings, upscale dining, or cocktail bars.