March 18 is statistically one of the best days of the year in London. With minimal rain risk (14%) and pleasant highs of 11°C, it's ideal for outdoor adventures. It's a quieter period for London, ideal for those who prefer unhurried sightseeing.
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Essential Travel Info for London
Currency
GBP
£ British pound
Language
English
Driving
Left side
Connect
London is unfortunately not noted for fr...
Safety
High Safety
GPI: 1.667
London Weather Forecast for March 18
"Mild & Comfortable. Expect average highs of 11.3°C. 14% chance of snow."
What to Wear in London in March
Based on historical data for March 18, London typically experiences temperatures between 4.1°C and 11.3°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (14% 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
11.3°C
Daytime Peak
Average Low
4.1°C
Nighttime Low
Feels Like
9.9°C
❄️ Minor difference
Snow Chance
14%
Avg 0.7mm if it snows
Snowfall
0.1 cm
~14% chance
Pressure
1020.5 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 15 for extended outdoor time
Type I-II
🔴 44 min to burn
Type III-IV
🟡 66 min to burn
Type V-VI
🟢 110 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8°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
25/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~662
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in London
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:09
☀️ Noon
12:09
🌇 Sunset
18:10
⏱️ Daylight
12h 0m
Wind Speed
18.6 km/h
Gentle breeze
Sunshine
6.1 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for London
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in London
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟢 Moderate
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 excellent. Perfect for outdoor activities.
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 March 18 averages 11.3°C with a 14% precipitation probability. Wedding/Outdoor Event Score: 78/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is London Worth Visiting on March 18?
Planning a trip to London on March 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 11.3°C with a 14% historical precipitation risk.
✈️ Travel Logistics: Approximately 662 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 March 18 recorded in the last 30 years saw temperatures hit 14.7°C in 2022, while the coldest dropped to -0.8°C in 2018.