Good morning, London.
If you've opened the curtains today, you've probably noticed one thing straight away – it's already warm, and the temperature is only going to climb from here.
Today is shaping up to be one of the hottest days of the week, with bright sunshine expected for most of the day and afternoon temperatures reaching around 34°C. For late June, that's exceptionally warm by London standards, so it's worth planning your day around the weather rather than simply heading out as usual.
Whether you're travelling into the city, working outdoors, visiting London's famous attractions, or simply enjoying the sunshine in your local park, today's conditions deserve a little extra preparation.
A Bright and Warm Start
London has started the day under clear skies with plenty of sunshine.
The morning air already feels noticeably warmer than usual, and unlike many summer mornings in the UK, there's very little chill. The combination of sunshine and light winds means temperatures will rise quickly through the morning.
If you're planning a walk, a run, or a visit to one of London's parks, the earlier you head out, the more comfortable you'll be.
By lunchtime, the heat will become much more noticeable.
This Afternoon: The Hottest Part of the Day
The period between 1:00 PM and 5:00 PM is expected to be the hottest part of the day.
Forecasts suggest temperatures will peak at around 34°C, while the strong sunshine may make it feel even warmer in central London. Areas surrounded by tall buildings, busy roads, and paved streets tend to trap heat, so places like Westminster, the City of London, and Canary Wharf often feel several degrees warmer than nearby suburbs.
Fortunately, the chance of rain remains very low, meaning outdoor plans are unlikely to be interrupted by showers. However, the intense sunshine means it's important to avoid spending too much time in direct sunlight, especially during the afternoon.
Why Does It Feel So Hot?
Many visitors are surprised that London can experience temperatures like this.
The city is currently under the influence of a strong area of high pressure, which is bringing clear skies and allowing warm air to build across southern England.
Another factor is what's known as the urban heat island effect. Buildings, roads, and pavements absorb heat throughout the day and slowly release it back into the atmosphere. As a result, central London often feels hotter than the official forecast suggests, particularly during prolonged sunny spells.
This is also why evenings can remain surprisingly warm even after the sun goes down.
What Should You Wear Today?
Today calls for light, breathable clothing.
Cotton and linen fabrics are ideal because they allow air to circulate and help keep your body cool. Light colours are also a good choice, as they reflect more sunlight than darker clothing.
If you'll be outdoors for any length of time, don't forget:
- Sunglasses with UV protection
- A wide-brimmed hat or cap
- Sunscreen (SPF 30 or higher)
- Comfortable footwear
- A reusable water bottle
These small preparations can make a big difference on a hot day like today.
Staying Safe in the Heat
The sunshine may look inviting, but prolonged exposure to high temperatures can quickly lead to dehydration or heat exhaustion.
Some simple steps will help you stay safe:
- Drink water regularly, even if you don't feel thirsty.
- Avoid strenuous exercise during the hottest hours of the day.
- Take regular breaks in the shade.
- Keep an eye on children and older family members, who are more vulnerable to heat.
- If you're travelling with pets, make sure they have access to water and avoid walking dogs on very hot pavements during the afternoon.
Remember that heat-related illnesses can develop gradually, so it's important to listen to your body. If you begin to feel dizzy, unusually tired, or develop a headache, move somewhere cool, drink water, and rest.
Travelling Around London Today
The weather could have an impact on travel across the capital.
The London Underground is often significantly warmer than the temperature outside, particularly on deep-level lines. Carrying water during your journey is highly recommended, and if you're travelling during the afternoon, allow yourself a little extra time.
Drivers should also be aware that parked vehicles can become extremely hot within a short period. Never leave children or pets inside a parked car, even for a few minutes.
If you're cycling around the city, consider taking shorter breaks and refilling your water bottle whenever possible.
Enjoying the Weather
Despite the heat, today is a fantastic opportunity to enjoy London's outdoor spaces.
Early morning and early evening are the best times to visit places such as Hyde Park, Regent's Park, Greenwich Park, or the South Bank. Riverside walks, outdoor cafés, and open green spaces are likely to be especially popular as people make the most of the sunshine.
If the afternoon becomes too warm, London's museums, galleries, and shopping arcades offer a welcome escape before heading back outside later in the day.
This Evening
Even after sunset, temperatures will remain pleasantly warm.
Skies are expected to stay mostly clear, making it an excellent evening for outdoor dining, riverside walks, or simply sitting in one of London's parks as the city begins to cool down.
However, overnight temperatures are only expected to fall to around 20°C, meaning homes and apartments may stay warmer than usual. Opening windows later in the evening and keeping curtains closed during the day can help keep indoor temperatures more comfortable.
Final Thoughts
London is enjoying one of the hottest days of the summer so far, with sunshine, blue skies, and temperatures reaching around 34°C.
For those who enjoy warm weather, it's a wonderful day to explore the city, relax in a park, or spend time outdoors. At the same time, the heat shouldn't be underestimated. Staying hydrated, wearing suitable clothing, and planning your activities around the warmest part of the day will help you enjoy everything London has to offer safely.
So, if you're heading out today, don't forget your sunglasses, sunscreen, and a bottle of water. The sunshine is here to be enjoyed—but it's always better to enjoy it wisely.
