United Kingdom London Weather in April — Climate Guide
April in London is Good
April is Good for London.
First proper spring — cherry blossoms peak mid-month in Greenwich Park, Regent's Park, and Kew Gardens (where the cherries are most photogenic). London Marathon (late April) draws 40,000 runners along a Greenwich-Tower-Embankment route. Easter weekend (variable date) sees London emptying as locals leave town — great time to visit but check museum opening hours.
Travel score
Spring + Easter + Marathon + year's #1 season entry
April Weather at a Glance
April averages 57°F / 14°C highs and 43°F / 6°C lows — full spring. 9 rainy days, 45mm. Humidity 75% + 5 hours of sunshine. Cherry blossom + spring flowers peak mid-late April. April showers (short rain) frequent.
April Travel Advice
Jacket + cardigan + umbrella + walking shoes. April 5-8 Easter Weekend (public holiday, many museums closed). Last Sunday of April London Marathon (40,000 runners + ~1 million spectators). Kew Gardens, St. James's Park spring flowers peak. King's Birthday Parade June first Saturday (preparation season).
Flying In from Overseas
Pre-Korean Children's Day 5-day weekend — Asia-London $840-1,330 round-trip. Easter hotels rise. Late April is the value peak.
April Pricing Trends
Easter week 1.5x — Covent Garden 3-star $195-350/night.
London April Weather Stats
Avg High
14°C
Avg Low
6°C
Rainy Days
9
45mm total
Sunshine
5h
Daily avg
Humidity
70%
Mild
UV Index
4
Moderate
Wind
15 km/h
Gusts 28
Sea Temp
10°C
Avg water temp
Crowds
Moderate
At attractions
April Sunrise & Sunset
Air Quality
PM2.5
21 μg/m³
PM10
32 μg/m³
Status
Moderate
Feels-Like Temperature & Wind
Feels like
Daytime
13°C
Nighttime
4°C
Humidity and wind affect how the actual temperature feels.
Wind
15 km/h
Max gust 28 km/h
Activities Recommended for April
April Travel Pros & Cons
Pros
- Cherry blossoms (Greenwich, Regent's Park)
- Mild + lengthening days
- London Marathon spectacle
Cons
- Easter prices for some hotels
- Variable weather (4 seasons in a day)
- School Easter holidays = museum crowds
April Events & Festivals
- London Marathon (late April)
- Shakespeare's Birthday (April 23)
- Easter at Westminster Abbey (variable date)
London in April — Full Picture
First proper spring — cherry blossoms peak mid-month in Greenwich Park, Regent's Park, and Kew Gardens (where the cherries are most photogenic). London Marathon (late April) draws 40,000 runners along a Greenwich-Tower-Embankment route. Easter weekend (variable date) sees London emptying as locals leave town — great time to visit but check museum opening hours.
What to Wear & What to Pack
Trench coat or denim jacket + sweater. Daytime can hit 18°C; evenings drop to 8°C. Compact umbrella essential. Cherry blossoms in Greenwich Park and Regent's Park peak mid-April.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current14°C
6.3°C
8.7/mo
Summer (Jun·Jul·Aug)
21.7°C
13.3°C
6.7/mo
Autumn (Sep·Oct·Nov)
15°C
8°C
9.3/mo
Winter (Dec·Jan·Feb)
8.3°C
2.3°C
10.3/mo
London Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 8° | 2° | 11d·55mm | 1.5h | 80% | 1 | Quiet | Low season | |
| 9° | 2° | 9d·40mm | 2h | 78% | 2 | Quiet | Low season | |
| 11° | 4° | 9d·40mm | 3.5h | 73% | 3 | Moderate | Shoulder | |
| 14° | 6° | 9d·45mm | 5h | 70% | 4 | Moderate | Shoulder | |
| 17° | 9° | 8d·45mm | 6.5h | 68% | 5 | Busy | Peak | |
| June (Best) | 20° | 12° | 7d·45mm | 7h | 65% | 6 | Busy | Peak |
| July (Best) | 23° | 14° | 6d·45mm | 7h | 65% | 6 | Very busy | Peak |
| 22° | 14° | 7d·50mm | 6.5h | 66% | 5 | Very busy | Peak | |
| 19° | 11° | 8d·50mm | 5h | 70% | 4 | Busy | Peak | |
| 15° | 8° | 10d·70mm | 3.5h | 76% | 3 | Moderate | Shoulder | |
| 11° | 5° | 10d·65mm | 2h | 79% | 1 | Moderate | Shoulder | |
| 8° | 3° | 11d·55mm | 1.5h | 81% | 1 | Very busy | Peak |
View Other Months
London April Hotel Picks
Frequently Asked Questions
Is April a good time to visit London?
London in April is Good. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in London in April?
London April averages a high of 14°C and a low of 6°C.
Does it rain much in London in April?
London April averages 45mm of rainfall over about 9 rainy days.
What should I wear in London in April?
Trench coat or denim jacket + sweater. Daytime can hit 18°C; evenings drop to 8°C. Compact umbrella essential. Cherry blossoms in Greenwich Park and Regent's Park peak mid-April.
What time are sunrise and sunset in London in April?
London April sunrise is 06:20 and sunset is 19:55, with 13h 35m of daylight.
What's the air quality like in London in April?
London April air quality (AQI) averages 48, rated Good. PM2.5 averages 21μg/m³.
What activities are recommended in London in April?
In April, London is great for Cherry blossoms Greenwich Park, London Marathon spectator, Kew Gardens.
Is April peak season in London?
London April crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit London
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.