Good Morning!
A scorching bank holiday is here! London is set for one of its hottest May days on record, with clear blue skies and intense sunshine perfect for outdoor plans — but with important precautions to stay safe in the heat.
Current Conditions & Today's Forecast
- Temperature: Daytime highs reaching 32–34°C (90–93°F), potentially making this one of the warmest Spring Bank Holidays in years. Overnight lows will stay mild around 17–19°C (63–66°F).
- Weather Conditions: Sunny throughout the day with virtually no cloud cover and a very low chance of rain (<5%). Light to gentle easterly winds (5–15 mph), though it may feel breezier near the Thames or open spaces.
- Feels Like: Up to 32–35°C in direct sun due to high UV levels and building humidity.
- Sunrise/Sunset: Sunrise around 04:57 BST | Sunset around 20:58 BST — giving over 16 hours of daylight to enjoy.
This unseasonably warm spell is driven by high pressure bringing warm air from the south, creating ideal (but intense) late-May conditions.
Hour-by-Hour Outlook
- Morning (6 AM – 12 PM): 18–25°C, bright and sunny. Perfect for early walks or setting up picnics.
- Afternoon (12 PM – 5 PM): Peak heat between 30–34°C. Strongest sunshine and highest UV.
- Evening (5 PM onwards): Gradually cooling to the mid-20s, remaining dry and pleasant for outdoor dining or riverside strolls.
Precautions You Should Take Before Going Outside
While this weather is fantastic for barbecues, parks, and festivals, the heat brings real risks — especially for vulnerable groups.
1. Sun Protection
- High UV index (Very High today) — apply broad-spectrum SPF 30+ sunscreen generously and reapply every 2 hours.
- Wear sunglasses, a hat, and light, loose-fitting clothing.
- Seek shade between 11 AM and 3 PM when the sun is strongest.
2. Hydration & Heat Exhaustion
- Drink plenty of water — aim for 2–3 litres more than usual. Avoid excessive alcohol and caffeine.
- Watch for signs of heat exhaustion: dizziness, headaches, nausea, or heavy sweating.
- Keep children and elderly relatives hydrated and out of direct sun for long periods.
3. Outdoor Activities
- Parks & Picnics (Hyde Park, Regent’s Park, Greenwich): Great day, but arrive early for shade spots.
- Walking/Cycling: Stick to morning or evening. Avoid strenuous activity in peak afternoon heat.
- Travel: Public transport (Tube, buses) can get very warm — carry water and plan routes with air-conditioned options if possible.
4. At Home
- Close curtains/blinds during the day to keep rooms cooler.
- Use fans and open windows in the evening for natural ventilation.
- Never leave pets or children in cars.
Pollen Alert: Pollen levels are High — hay fever sufferers should take antihistamines and limit time outdoors if sensitive.
What to Expect in the Coming Days
The hot spell continues into Tuesday before temperatures ease slightly mid-week with increased breeze. Keep checking back for updates!
Bank Holiday Plans in London
This is prime time for:
- Outdoor markets and food festivals
- Thames river trips
- Garden visits and rooftop bars
- Family days in green spaces
Stay safe, stay hydrated, and enjoy this beautiful (and rare) hot bank holiday in London! ☀️
