October 20 sees frequent showers in London. Historical data shows a 40% chance of rain, so pack accordingly. Temperatures average 15°C. London is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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London Weather Forecast for October 20
"Mild & Comfortable. Expect average highs of 14.6°C. 40% chance of rain."
What to Wear in London in October
Based on historical data for October 20, London typically experiences temperatures between 8.5°C and 14.6°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 40% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for London
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
14.6°C
Daytime Peak
Average Low
8.5°C
Nighttime Low
Feels Like
14.4°C
🌤️ Feels accurate
Rain Chance
40%
Avg 1.9mm if it rains
Cloud Cover
69%
Overcast
Pressure
1009.6 hPa
High volatility
London Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 88% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 80 min to burn
Type III-IV
🟡 120 min to burn
Type V-VI
🟢 200 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11.9°C
Pleasant
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
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~2,634
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in London
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:33
☀️ Noon
11:46
🌇 Sunset
16:59
⏱️ Daylight
10h 25m
Wind Speed
21.4 km/h
Moderate wind
Sunshine
5.4 hrs
Direct Sun (Cloud-free)
Humidity
84%
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
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Low pressure & humidity may aggravate joints.
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 October 20 averages 14.6°C with a 40% precipitation probability. Wedding/Outdoor Event Score: 84/100."
— 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
October 15
14.8°C • 19% rain
Score
92
October 17
14.9°C • 28% rain
Score
92
October 13
15°C • 25% rain
Score
91
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 20) in other destinations
Barcelona
Spain
Rome
Italy
Lisbon
Portugal
Prague
Czech Republic
Amsterdam
Netherlands
🌍 Explore the same date in different destinations around the world
📍 Is London Worth Visiting on October 20?
Planning a trip to London on October 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 14.6°C with a 40% historical precipitation risk.
✈️ Travel Logistics: Approximately 2,634 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 October 20 recorded in the last 30 years saw temperatures hit 17.6°C in 2020, while the coldest dropped to 3.7°C in 2019.