April 15 is generally a great time to visit London. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 14°C weather. It's a quieter period for London, ideal for those who prefer unhurried sightseeing.
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London Weather Forecast for April 15
"Mild & Comfortable. Expect average highs of 13.9°C. 18% chance of rain."
What to Wear in London in April
Based on historical data for April 15, London typically experiences temperatures between 4.8°C and 13.9°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for London
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
13.9°C
Daytime Peak
Average Low
4.8°C
Nighttime Low
Feels Like
13.5°C
🌤️ Feels accurate
Rain Chance
18%
Avg 0.8mm if it rains
Cloud Cover
62%
Overcast
Pressure
1016.6 hPa
High volatility
London Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 25 min to burn
Type III-IV
🟡 38 min to burn
Type V-VI
🟢 63 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.1°C
Dry air
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United Kingdom
Flight Traffic
Quiet
28/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~736
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in London
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:06
☀️ Noon
12:01
🌇 Sunset
18:56
⏱️ Daylight
13h 50m
Wind Speed
17.6 km/h
Gentle breeze
Sunshine
9.5 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for London
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in London
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, London on April 15 averages 13.9°C with a 18% precipitation probability. Wedding/Outdoor Event Score: 85/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
London Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 19
14.7°C • 15% rain
Score
92
April 20
14.9°C • 19% rain
Score
90
April 18
14.5°C • 16% rain
Score
88
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is London Worth Visiting on April 15?
Planning a trip to London on April 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 13.9°C with a 18% historical precipitation risk.
✈️ Travel Logistics: Approximately 736 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 8 vaccinations are recommended for United Kingdom, including COVID-19.
📊 Historical Extremes: The hottest April 15 recorded in the last 30 years saw temperatures hit 20.8°C in 2022, while the coldest dropped to -0.5°C in 2021.