Quick Answer
For London weather in June, Met Office 1991–2020 data for Heathrow shows an average maximum of 21.57°C (70.8°F), an average minimum of 12.03°C (53.7°F), 47.25 mm of rain, and about 8.3 days with at least 1 mm of rainfall. Bring layers, comfortable shoes, and light rain protection.
Last checked: October 1, 2026. Dates and figures were verified against official sources.
Key Takeaways
- June is one of London’s brighter months, with about 208 hours of sunshine in the Heathrow 1991–2020 climate normal.
- Rain is possible in any week, but the long-term average is about 47 mm for the month rather than constant wet weather.
- Around the summer solstice, London gets roughly 16 hours 38 minutes of daylight, so evenings stay light well past 9 p.m.
- Recent heatwaves show that actual June weather can be much hotter than the long-term averages, so check the forecast shortly before travel.
London Weather in June at a Glance
June in London is generally comfortable for walking, parks, outdoor dining, and sightseeing. The best baseline is the Met Office 1991–2020 Heathrow climate average, which gives a consistent picture of typical June conditions in the London area.
| June climate measure | Heathrow 1991–2020 average |
|---|---|
| Average maximum temperature | 21.57°C (70.8°F) |
| Average minimum temperature | 12.03°C (53.7°F) |
| Monthly rainfall | 47.25 mm (1.86 in) |
| Days with at least 1 mm of rain | 8.33 days |
| Monthly sunshine | 208.39 hours |
These are climate averages, not a forecast for a particular trip. A June visit can include cool grey mornings, warm sunny afternoons, showers, or a short spell of much hotter weather.
Average Temperature in London in June
Typical June afternoons in London are mild to warm rather than reliably hot. At Heathrow, the long-term average maximum is 21.57°C, while the average minimum is 12.03°C, so a light layer is useful after sunset or on cloudy days.
Those figures are a better planning guide than a single “average daily temperature” because they show the difference between daytime warmth and overnight coolness. On a sunny afternoon, a T-shirt may feel comfortable; after rain or on an evening river walk, a light sweater or jacket can make a noticeable difference.
June can also produce heatwaves. That means the long-term averages should guide your packing, but the short-range forecast should guide what you wear on the day.
Variation in Temperature Throughout the Month
Temperatures often edge upward as June progresses, but day-to-day changes can be larger than the gradual seasonal trend. A cool, breezy day can be followed by a warm spell, especially when air masses and pressure patterns shift.
Early June can still feel spring-like in cloud, wind, or rain, while later June has a greater chance of warm summer conditions. For visitors, the practical lesson is simple: pack for a range rather than for one fixed temperature.
Around the summer solstice, the long daylight also changes how a day feels. In 2026, London had about 16 hours 38 minutes of daylight around June 21, with sunset after 9:20 p.m., according to London sunrise and sunset data. That gives you a long evening for outdoor plans even when daytime temperatures are moderate.
Rainfall Patterns in London in June
Rain is a normal part of London weather in June, but the long-term figures do not suggest rain every day. Heathrow averages 47.25 mm of rainfall in June across about 8.33 days with at least 1 mm of rain.
The original article described June as drier than April or May, but the same Met Office dataset shows 42.31 mm in April and 45.91 mm in May at Heathrow. In other words, June is slightly wetter by total rainfall in that climate normal, even though its warmer temperatures and long daylight can make the month feel more summery.
Summer showers may be brief, but some weather systems can bring longer periods of rain. A compact umbrella or light waterproof jacket is usually more practical than a heavy raincoat, and quick-drying shoes are helpful if you expect to walk for much of the day.
Historical Weather Data for June in London
London’s June climate averages hide large year-to-year swings. Recent records show why you should treat 21–22°C as a typical daytime benchmark, not a ceiling.
June 2026 was exceptionally warm. The Met Office county breakdown for June 2026 recorded a mean temperature of 19.2°C for Greater London, 3.0°C above its 1991–2020 average, while the City of London recorded a mean of 19.8°C. England as a whole had its warmest June on record in the Met Office series.
At the other end of the spectrum, wet Junes also occur. The Met Office has identified June 2012 as the wettest June on record for the UK in the national series used at the time. That national record does not mean every part of London had the same rainfall, but it shows how variable British summer weather can be.
The broader trend is toward warmer UK summers and more extreme heat. For trip planning, use climate normals for your packing list and a reliable short-range forecast for the actual days you will be outside.
Activities and Events in London in June
June is a strong month for outdoor events because London has long daylight and generally mild weather. Royal ceremonies, tennis, concerts, parks, and open-air dining all become easier to combine in one day.
Trooping the Colour marks the monarch’s official birthday with a ceremonial parade in central London. For 2027, the Visit London Trooping the Colour listing currently places the event in June but says the exact date is still to be confirmed. That wording is more reliable than assuming the date from previous years.
Wimbledon is another major early-summer draw. The official Wimbledon future-dates page lists The Championships 2027 for June 28 to July 11, so the final days of June will overlap with the start of the tournament.
BST Hyde Park also brings major outdoor concerts to Hyde Park in summer, although dates and lineups change by year. Museums such as Tate Modern and the National Gallery remain useful choices when showers interrupt outdoor plans, while June’s late sunsets make it easy to return outside afterward.
Packing Tips for Visiting London in June
The best June packing strategy is light layering. You want clothes that work for a mild morning, a warmer afternoon, a shower, and a cooler evening without forcing you to carry bulky outerwear.
- Light tops: T-shirts, shirts, and breathable layers work well for most daytime sightseeing.
- A thin sweater or light jacket: Useful for evenings, cloudy periods, air-conditioned interiors, and breezy river trips.
- Rain protection: Pack a compact umbrella or lightweight waterproof shell.
- Comfortable walking shoes: Choose shoes that can handle long days and occasional wet pavements.
- Sun protection: Bring sunscreen, sunglasses, and a hat if you expect to spend several hours outdoors.
- A reusable water bottle: Helpful on warm days and during long sightseeing routes.
A heavy winter coat is usually unnecessary, but travelers who feel the cold may prefer an extra layer for late evenings. Check the forecast once shortly before your trip so you can adjust for an unusually cool or hot spell.
Best Places to Visit in London in June
London’s parks and gardens are especially appealing in June because the days are long and much of the city’s planting is in active summer growth. Hyde Park, Kensington Gardens, and Kew Gardens all work well for a slower day between museums and major landmarks.
Hyde Park is particularly flexible in summer. The Royal Parks sports and leisure information says boating on the Serpentine is open daily from 10 a.m. to 8 p.m. from June through August, while public swimming at the Serpentine Lido is available daily from June to mid-September, generally from 10 a.m. to 6 p.m.
Buckingham Palace and the ceremonial areas around The Mall are also popular in June, especially near major royal events. Covent Garden and Camden Market offer a different experience, with shops, food, performances, and busy street life that can be enjoyed even when the weather changes during the day.
If rain becomes persistent, shift to an indoor museum or gallery rather than abandoning the day. London’s concentration of major indoor attractions makes it relatively easy to build a flexible itinerary around the weather.
Outdoor Dining and Drinking Options in London in June
June is well suited to outdoor dining because daylight lasts late into the evening. Many pubs, cafés, restaurants, markets, and rooftop venues use outdoor seating when conditions are dry.
The South Bank is convenient for combining a riverside walk with lunch or dinner, while Borough Market offers a wide range of food in and around a partly covered market setting. Rooftop venues such as Sky Garden can work well for an evening view, although popular locations may require advance reservations.
Weather can change quickly, so an outdoor table with nearby cover is useful on unsettled days. On cooler evenings, a thin extra layer can make a longer meal much more comfortable.
How to Stay Cool in London in June
Most June days are manageable with ordinary summer precautions, but London can experience significant heatwaves. During very hot weather, prioritize water, shade, lighter clothing, and cooler parts of the day for strenuous walking.
Current UK Health Security Agency hot-weather guidance recommends drinking fluids regularly, planning physical activity for cooler times such as early morning or evening, and moving to shade or a cooler place if you become overheated.
Indoor museums, galleries, libraries, shops, and other public buildings can provide a break from strong heat. If a heat alert is in force, adjust your sightseeing pace instead of trying to follow a fixed outdoor schedule.
Enjoying London Weather in June
London weather in June is usually a good match for a mixed city itinerary: mild-to-warm afternoons, long evenings, and enough daylight to combine indoor and outdoor attractions. The trade-off is variability, so your plans should work in both sunshine and showers.
Use the long-term averages to pack, then use the short-range forecast for daily decisions. With light layers, rain protection, comfortable shoes, and a flexible schedule, you can make good use of June’s parks, events, museums, markets, and extended evening light.
Frequently Asked Questions
What is the average temperature in London in June?
At Heathrow, the Met Office 1991–2020 climate normal gives an average June maximum of 21.57°C (70.8°F) and an average minimum of 12.03°C (53.7°F). These are long-term averages, so individual days can be noticeably cooler or much hotter.
What is the average rainfall in London in June?
Heathrow averages 47.25 mm (1.86 inches) of rain in June in the Met Office 1991–2020 climate normal. The same dataset records about 8.33 days with at least 1 mm of rainfall, so rain is common enough to plan for but not expected every day.
Does it rain all day in London in June?
Not usually, but all-day rain is possible. June can bring short showers, longer spells of rain, or completely dry days, so the safest plan is to carry light rain protection and keep one or two indoor attractions available as flexible alternatives.
What clothing should I pack for London in June?
Pack light, breathable clothes plus a thin sweater or jacket, comfortable walking shoes, and a compact umbrella or lightweight waterproof. Add sunscreen, sunglasses, and a hat for sunny days. A heavy coat is usually unnecessary unless an unusually cool spell is forecast.
How much daylight does London get in June?
London gets its longest days of the year in June. Around the 2026 summer solstice, daylight lasted about 16 hours 38 minutes, with sunrise shortly after 4:40 a.m. and sunset after 9:20 p.m., giving visitors a long evening for outdoor sightseeing.
Can London get very hot in June?
Yes. The long-term average is mild, but recent Junes have included significant heatwaves. In June 2026, Greater London recorded a mean temperature 3.0°C above its 1991–2020 average, so travelers should check the forecast and adjust outdoor plans during unusually hot spells.
If you’re interested in learning more about London weather in June, you may also want to check out this article on com/sample-page-2/’>taglinetoday.
com that discusses the best outdoor activities to enjoy during the summer months in the city. This article provides helpful tips and recommendations for making the most of the warm weather and longer days in London.
Sources
- Met Office: Heathrow long-term climate averages: June temperature, rainfall, rain-day, and sunshine normals for 1991–2020.
- Met Office: June 2026 county weather statistics: Greater London and City of London June 2026 mean temperatures.
- Met Office: 2020 weather and climate review: identifies June 2012 as the UK’s wettest June in the national record used by the Met Office.
- Timeanddate: London sunrise and sunset: June 2026 daylight length, sunrise, and sunset times.
- Visit London: Trooping the Colour: 2027 event timing status and event description.
- Wimbledon: Dates for Future Championships: confirmed 2027 tournament dates.
- The Royal Parks: Sport and Leisure FAQs: Hyde Park boating and Serpentine Lido seasonal opening information.
- UK Health Security Agency: Beat the heat: hydration, shade, and hot-weather safety guidance.
