London Weather in July
🇬🇧 United Kingdom
Europe › 🇬🇧 United Kingdom › London
Updated: March 2026
Is July a Good Time to Visit London?
July is a good time to visit London (7/10). With 11 daily sunshine hours and only 11 rain days, this month delivers genuinely reliable outdoor conditions, ranking it the sunniest month of the year in London. Culture-focused travellers and those who prefer lighter crowds will find July a practical choice, with prices running lower than peak July without sacrificing all the good weather. Wimbledon Championships takes place this month, adding cultural value for those planning around it. The main practical note: London's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
Step off the plane in London in July and the air meets you at around 22°C, a temperature that feels genuinely welcoming after a long flight. By the time evening arrives and temperatures settle near 13°C, the city takes on a different character entirely. With 11 hours of daylight sun on offer, July gives you the raw material for a genuinely memorable trip.
22°C
Avg High
13°C
Avg Low
11 days
Rain Days
11h
Sunshine
65%
Humidity
Temperature in London in July
The 9°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 10 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 18 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 72°F average high, 55°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature in July
Monthly Precipitation (mm)
What to Wear in London in July
Packing for London in July means dressing for 22°C days and 13°C evenings. A light cotton tee with a casual overshirt works well at 22°C, the overshirt doubles as a layer for air-conditioned venues. Evening temperatures settle at 13°C, a modest 9°C drop that a light cardigan or denim jacket covers. European cobblestones reward low-profile walking shoes over flip-flops or heels, with cushioned trainers or leather walking shoes being the practical choice. A compact foldable umbrella weighs almost nothing and earns its keep across 11 potential rainy days.
Local tip: London's cobbled streets turn slippery in the rain. Waterproof walking shoes with a non-slip sole outperform fashionable footwear on wet stone, and you'll cover significantly more ground in comfort.
Events in London in July
Wimbledon Championships
SportEarly July
The world's oldest tennis tournament enters its final week with semi-finals and finals. Grounds passes available daily via the queue. Finals tickets require advance ballot.
LondonWhat to Pack for London in July
Based on 22°C average highs and 11 rainy days
- Light jacket or cardigan for cooler evenings
- Mix of short and long-sleeve layers
- Comfortable walking shoes with good arch support
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in London in July
- Explore outdoor markets and street food stallsMid-morning (10am-12pm)At 22°C, the temperature is ideal for extended walking without overheating
- Guided walking tour of the historic centreMorning or late afternoonComfortable temperatures allow several hours on foot without fatigue
- Visit rooftop viewpoints and observation decksGolden hour (1 hour before sunset)Warm clear evenings provide exceptional visibility for panoramic photography
- Day trip to the surrounding countryside or coastFull day (depart by 8am)July is reliably dry enough for rural day trips without weather risk
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Attend Wimbledon ChampionshipsCheck specific event datesA once-yearly event that defines this city in this month and draws visitors from around the world
- Try the seasonal farmer's market for local produce and street foodSaturday morning markets typically 8am-1pmJuly seasonal produce is at peak availability, offering dishes not found at other times of year
Why is London mild in July?
July in London reflects a mid-latitude climate pattern, with temperatures averaging 22°C by day and 13°C overnight. The city sits at 52 degrees north latitude, where the balance between solar radiation and heat loss drives conditions that are neither extreme nor static. Conditions occupy the comfortable middle band of the annual temperature range, where outdoor activity is feasible without the extremes of midsummer heat or midwinter cold. Day-to-night temperature variation of 9°C is moderate and manageable with a single mid-layer. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions: London in July
July ranks 1st sunniest of the year in London, with an average 11 daily sunshine hours. The driest months are September, February, and March. July is the hottest month (22°C avg high); January is the coolest (7°C). From here, temperatures fall 1°C into August. Compared to last month (June: 20°C high, 10 rain days), July is warmer and wetter. July is among the top three sunniest months to visit London.
Year-Round Climate
Plan Your Trip to London
Nearby Destinations with Similar Weather
These cities are within 500 km and experience broadly comparable weather conditions during the same calendar month, making them practical standalone alternatives or worthwhile additions to a longer regional itinerary.
Data Sources for London
Climate normals represent 30-year averages (1991-2020). Individual years may vary.