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Today's Weather In London: May 27 Wednesday 2026

Category:
Published:
27 May 2026

Good Morning!

London is enjoying another beautiful late spring day following the record-breaking heat earlier in the week. After some exceptionally warm temperatures over the bank holiday weekend (with highs pushing into the low-to-mid 30s°C in places), today brings slightly cooler but still very pleasant conditions with abundant sunshine.

Current & Forecasted Conditions

  • Temperature: High of 25–26°C (77–78°F) in central London this afternoon. Overnight lows will drop to around 13–14°C (55–57°F).
  • Conditions: Mostly sunny to sunny with clear skies for much of the day. Any early patchy cloud or light showers (if present) will clear quickly this morning, leaving dry and bright weather.
  • Feels Like: Around 24–26°C during the peak afternoon hours due to light winds and plenty of direct sunshine.
  • Wind: Gentle easterly breeze, around 10–18 km/h (6–11 mph), which will help keep things feeling fresh rather than muggy.
  • Humidity: Moderate, likely 50–70% during the day, dropping in the evening.
  • UV Index: High (6–7). Strong sunshine means good sun protection is essential.
  • Precipitation: Very low chance of rain (<10%). A dry day overall.

Sunrise: Around 4:50–5:00 AM BST Sunset: Around 9:00–9:05 PM BST (long, enjoyable daylight hours typical for late May).

Hourly Overview (Approximate for Central London)

  • Morning (8–11 AM): 16–20°C, sunny, light winds.
  • Midday/Afternoon (12–4 PM): 23–26°C, peak warmth with clear skies.
  • Evening (5–9 PM): 18–22°C, remaining dry and pleasant.
  • Night: Cooling to 13–15°C under clear skies.

What to Expect Across London

Inner London and the South East will feel the warmest. Coastal or more exposed eastern areas may stay a touch cooler due to the easterly breeze. Parks and green spaces like Hyde Park, Regent’s Park, or Greenwich will be ideal for outdoor activities today.

Precautions & Tips Before Heading Outside

This is lovely weather for being outdoors, but a few sensible precautions will help you make the most of it safely:

  1. Sun Protection — With a high UV index, apply broad-spectrum SPF 30+ sunscreen generously (reapply every 2 hours), wear a hat, and use sunglasses. Seek shade during the brightest hours if you have fair skin or are sensitive to the sun.
  2. Hydration — Stay well-hydrated. Carry a water bottle, especially if walking, cycling, or exercising outdoors. Avoid excessive alcohol or caffeine during peak heat.
  3. Dress Comfortably — Light, breathable clothing in natural fabrics (cotton, linen) is best. Layers for the evening as temperatures drop noticeably after sunset.
  4. Pollen & Allergies — Grass pollen levels are often high in late May. Hay fever sufferers should check pollen counts and consider antihistamines if needed.
  5. Air Quality & Health — Generally good today, but those with respiratory conditions may prefer indoor activities during the warmest part of the day if sensitive to warmth.
  6. Travel & Outdoors — Perfect for picnics, sightseeing, or Thames walks. Public transport can get warm—consider lighter clothing or early/late travel. Check for any local events in parks.

Looking Ahead

Tomorrow (28 May) is expected to remain warm with similar sunny spells, though temperatures may edge up slightly again. The pattern looks largely dry and settled for the next few days.

Enjoy this glorious London spring day! Whether you're commuting, exploring the city, or relaxing in one of our many beautiful parks, today is a great reminder of why May can be one of the most delightful months in the capital.