April Weather in City of London, United Kingdom

Last updated: March 17, 2025

April in the City of London, United Kingdom showcases a dynamic blend of springtime weather, characterized by a maximum temperature of 26°C (80°F) and an average of 10°C (49°F), making it a refreshing month for both residents and visitors. However, temperatures can dip as low as -2°C (29°F), highlighting the variability typical of the season. With a total precipitation of 32 mm (1.3 in) occurring over seven days, the month maintains a moderate level of rainfall. The humidity level often hovers around 85%, contributing to the lush greenery that London is renowned for in springtime. Overall, April offers a captivating experience of the city's floral blooms and unpredictable weather patterns.

April Temperature in City of London

In April, the temperatures in the City of London begin to show a promising upward trend, signaling the arrival of spring. With minimums hovering around -2°C (29°F) and an average temperature rising to 10°C (49°F), the chill of winter starts to fade away. This month can witness a remarkable peak, reaching up to 26°C (80°F), inviting residents and visitors alike to enjoy the blossoming parks and vibrant streets. Compared to the earlier months, April reflects a significant shift in weather patterns, as temperatures steadily climb, making it an ideal time for outdoor exploration and festivities in this historic city.

April Weather in City of London: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in City of London, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346495562656459544643
Data source: Temperature data for City of London generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in City of London

April in the City of London offers a refreshing transition, showcasing a marked decrease in precipitation with just 32 mm (1.3 in) of rain, spread over 7 days. This decline follows the wetter spring months of January through March, where the city experienced more consistent rainfall, averaging 52 mm (2.0 in). As Londoners greet the longer days of spring, April's gentler showers hint at the warmer weather to come. This pattern of reduced precipitation is a precursor to May's increase, where rainfall typically returns to 63 mm (2.5 in) over 10 days. The overall trend indicates a shift from the heavier rains of early spring to a more moderate and pleasant climate, making April a delightful month to enjoy the blooming city.

April Precipitation Trends in City of London

The chart displays monthly precipitation patterns in City of London, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec545253326377647245814884
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in City of London

In April, the City of London experiences a mild drop in humidity to 85%, reflecting the gradual transition into warmer months. This slight decline follows the trend of decreasing humidity that begins as winter recedes, with January's peak at 91% gradually easing through the spring. With May bringing even lower humidity at 82%, it's clear that April acts as a bridge, signaling the end of winter's damp grasp and welcoming the drier air characteristic of late spring and summer. The pattern of humidity levels, which fluctuate significantly throughout the year, ultimately enhances London's distinct seasonal beauty, making each month a unique experience for residents and visitors alike.

April Average Humidity in City of London

This chart illustrates the average monthly humidity levels in City of London, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in City of London

As April arrives in the City of London, the UV Index rises to 5, indicating a moderate exposure risk for residents and visitors alike. This marks an increase from the moderate levels observed in March, which had a UV Index of 4. With a burn time of just 30 minutes, it's essential to take precautions, especially as the city transitions towards warmer months. Looking ahead, May's Index will climb to 7, signaling a leap into the high exposure category. This trend highlights the growing intensity of UV radiation as spring progresses into summer, making it a perfect time to stay informed and protect your skin. For more details on UV levels throughout the year, check out City of London UV Index.

Maximum UV Index Levels in City of London for April

The chart shows the monthly maximum UV Index (UVI) for City of London in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: City of London April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in City of London

April brings a delightful transformation to the City of London, as the hours of sunshine surge to an impressive 319 hours, marking a significant increase from the previous months. This vibrant month not only showcases the city's blooming springtime but also sets the stage for the sun-soaked days ahead, with May trailing closely at 398 hours. The trend reflects a steady upward trajectory, as the days grow longer and brighter, lifting spirits throughout the city. As winter fades into memory, April's sunshine serves as a gentle reminder of the warmth and vitality that the change of season brings, inviting residents and visitors alike to bask in the radiance before the summer peak.

Monthly Sunshine Duration in City of London: April Highlighted

The April sunshine duration represents the total number of hours City of London experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec95h146h211h319h398h393h405h372h300h240h142h106h
Data source: City of London April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in City of London During April

April marks a significant turning point in the City of London when it comes to sunny weather, boasting an impressive 49% chance of sunshine. This substantial leap from the 29% seen in March highlights the arrival of spring, as the days grow longer and temperatures rise. In contrast to the more overcast months that precede it—where January and February languish at 19% and 25% respectively—April offers a rejuvenating breath of fresh air. Interestingly, while the likelihood of sunny skies begins to wane again in May to 34%, it remains a favored month for enjoying the burgeoning blooms and vibrant outdoor activities that spring offers. As such, April stands out as a delightful opportunity for Londoners to soak up the sun after the dreary winter months.

Percentage of Sunny Days in April in City of London

The chart illustrates the percentage of sunny days in City of London throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often City of London experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%25%29%49%34%29%39%26%29%25%32%17%
Data source: City of London April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in City of London in April

As April arrives in the City of London, daylight begins to extend noticeably, offering residents a delightful average of 13 hours of sunlight. This increase is part of a larger trend where daylight duration steadily lengthens from the winter months into spring. Following the gradual rise from 8 hours in January to 9 hours in February and 11 hours in March, April marks a significant leap, reflecting the awakening of nature and the promise of warmer days ahead. The month serves as a bridge to even brighter May and June, when daylight peaks at 15 and 16 hours, respectively. This upward trajectory not only enhances outdoor activities but also invites a renewed sense of energy and vibrancy in the city, setting the stage for the flourishing summer season.

Average Daylight Hours in City of London for April

The chart illustrates the variation in daylight duration in City of London throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 23m9h 58m11h 55m13h 54m15h 38m16h 33m16h 4m14h 30m12h 35m10h 36m8h 49m7h 53m
Data source: City of London daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in City of London

In April, the City of London experiences a gentle shift in its wind patterns, with average wind speeds dipping to 3.4 m/s (8 mph). This marks a notable decrease from March’s brisk 4.4 m/s (10 mph), suggesting that spring is settling in and bringing with it a milder breeze. As the city transitions from the often chillier months of winter and early spring, this softer wind can be felt weaving through the bustling streets and historic architecture, contributing to the vibrant atmosphere of the capital. However, the winds are set to pick up again in May, returning to 4.2 m/s (9 mph), hinting at the seasonal variability that London is known for. Overall, April’s winds serve as a reminder of nature’s rhythm, where each month brings its unique character to the cityscape.

Average April Wind Speed in City of London

The chart displays monthly wind speed patterns in City of London, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.64.43.4 m/s4.23.03.33.83.24.33.74.3
Data source: City of London April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in City of London Compares to Other Months

The weather in City of London changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in City of London and find detailed weather information for every month.

April and January present a notable contrast in weather patterns. In April, temperatures typically range from a minimum of -2°C (29°F) to a maximum of 26°C (80°F), with an average of 10°C (49°F). Precipitation in April is relatively moderate at 32 mm (1.3 in) over approximately 7 days, and the humidity is around 85%. In contrast, January experiences colder conditions, with temperatures varying from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), averaging at 5°C (41°F). It also sees more substantial rainfall, totaling 54 mm (2.1 in) across about 9 days, and higher humidity levels at 91%. For more detailed insights, you can visit the following link: City of London weather in January.

April generally brings milder temperatures compared to February, with average temperatures rising from 6°C (43°F) in February to 10°C (49°F) in April. February experiences cooler minimum temperatures, dipping as low as -7°C (21°F), whereas April sees a slightly warmer low of -2°C (29°F). Additionally, while February has more precipitation, totaling 52 mm (2.0 in) over 11 days, April receives less rainfall at 32 mm (1.3 in) across 7 days. The humidity remains relatively consistent, hovering around 85% in April and 89% in February, making both months feel damp. For more detailed weather patterns, you can check this link: City of London weather in February.

April generally showcases milder weather compared to March, with average temperatures rising from 8°C (46°F) in March to 10°C (49°F) in April. The maximum temperature in April reaches up to 26°C (80°F), notably warmer than March's peak of 22°C (72°F). Additionally, April experiences slightly less precipitation, totaling 32 mm (1.3 in) over 7 days, compared to March’s 52 mm (2.1 in) spread across 13 days. Humidity levels remain similar, with March at 86% and April at 85%. For more details, you can check City of London weather in March.

April and May exhibit notable differences in weather patterns. April experiences a broader temperature range, with minimums plunging to -2°C (29°F) and maximums reaching 26°C (80°F). The average temperature is a cooler 10°C (49°F) along with a higher humidity level of 85%. In contrast, May sees a slight increase in minimum temperature to 1°C (34°F) and a more consistent average of 13°C (55°F), although the maximum dips slightly to 25°C (78°F). Moreover, May is characterized by increased precipitation, totaling 63 mm (2.5 in) across 10 days compared to April's 32 mm (1.3 in) over 7 days, leading to marginally lower humidity at 82%. For more weather details, visit City of London weather in May.

April and June exhibit notably different weather patterns in the city. In April, temperatures can range from a chilly -2°C (29°F) at night to a pleasant 26°C (80°F) during the day, with an average temperature of around 10°C (49°F). The month sees approximately 32 mm (1.3 in) of precipitation over 7 days and maintains a high humidity level of 85%. In contrast, June experiences warmer temperatures, with minimums of 7°C (45°F), average highs of 17°C (62°F), and peaks reaching up to 32°C (89°F). However, it also has increased rainfall, totaling 77 mm (3.0 in) over 8 days, yet the humidity is slightly lower at 81%. For a more detailed look at the weather in June, you can visit City of London weather in June.

In April, the weather can be quite variable, with temperatures ranging from a chilly -2°C (29°F) at night to a pleasant max of 26°C (80°F) during the day. The month experiences an average temperature of 10°C (49°F), with about 32 mm (1.3 in) of precipitation over approximately 7 days, coupled with high humidity at around 85%. In contrast, July brings warmer conditions, featuring a minimum temperature of 9°C (49°F) and soaring daytime highs of up to 36°C (97°F). The average temperature rises to 18°C (65°F), and rainfall increases to 64 mm (2.5 in) over about 11 days, though humidity drops slightly to 76%. For further details on July weather, visit City of London weather in July.

In April, the weather is quite variable, with temperatures ranging from a chilly -2°C (29°F) at night to a comfortable 26°C (80°F) during the day, leading to an average of about 10°C (49°F). The month sees some precipitation, totalling 32 mm (1.3 in) over approximately 7 days, and the humidity lingers around a high 85%, making it feel quite damp at times.

In contrast, August is typically warmer and more stable, with minimum temperatures of 8°C (47°F) and maximums reaching up to 34°C (94°F), averaging around 18°C (64°F). However, it also experiences increased rainfall, with 72 mm (2.8 in) over about 12 days, and the humidity drops to a more comfortable 73%. For more detailed information, you can visit City of London weather in August.

April and September both feature mild temperatures, but September generally offers a slightly warmer experience. In April, temperatures range from a chilly -2°C (29°F) at night to a pleasant 26°C (80°F) during the day, with an average of 10°C (49°F). Conversely, September sees minimum temperatures around 4°C (40°F) and daily highs reaching 28°C (83°F), leading to an average of 15°C (60°F). Precipitation is more frequent in September, with 45 mm (1.8 in) falling over 9 days compared to April's 32 mm (1.3 in) over 7 days. Despite the increased rainfall in September, the humidity levels remain similar, at 80% for September and 85% for April. For more detailed information, you can check the City of London weather in September.

April and October present contrasting yet mild weather conditions. In April, temperatures can swing from a chilly low of -2°C (29°F) to a pleasant high of 26°C (80°F), averaging around 10°C (49°F). However, the month tends to be quite humid, with an average humidity of 85% and 32 mm (1.3 in) of rainfall over about 7 days. In contrast, October features a more stable temperature range, with a minimum of 1°C (34°F) and a maximum of 23°C (73°F), averaging 12°C (54°F). The fall month sees a rise in precipitation, totaling 81 mm (3.2 in) over approximately 12 days, accompanied by slightly higher humidity at 89%. For more detailed insights, visit City of London weather in October.

April and November showcase distinct weather characteristics, with both months experiencing chilly temperatures. In April, the minimum temperature can drop to -2°C (29°F), but the month boasts a warmer average of 10°C (49°F) and a maximum reaching 26°C (80°F). With 32 mm (1.3 in) of precipitation over about 7 days, April's atmosphere is relatively humid at 85%. In contrast, November sees a similar minimum temperature of -2°C (28°F), but a cooler average of 8°C (47°F) and a maximum of only 17°C (62°F). This month tends to be wetter, with 48 mm (1.9 in) of precipitation spread over 10 days, and the humidity levels rise to 92%. For a more detailed exploration of November weather, visit City of London weather in November.

In comparing the weather of April and December, we see distinct contrasts in temperature and precipitation. April experiences a wider range of temperatures, with a minimum of -2°C (29°F), an average of 10°C (49°F), and a maximum of 26°C (80°F), promoting a mild spring ambiance. In contrast, December's temperatures are cooler, ranging from a minimum of -4°C (25°F) to a maximum of 14°C (58°F), which reflects the chill of winter.

Precipitation also varies significantly; April receives 32 mm of rain over approximately 7 days, while December sees heightened rainfall of 84 mm spread across 14 days, leading to a wetter atmosphere. Additionally, December's humidity level of 92% is higher than April's 85%, contributing to a more damp and chilly environment. For a more detailed look at December weather, you can visit City of London weather in December.

Compare City of London's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in City of London

As April unfolds in the City of London, the transition to spring becomes unmistakable with mild temperatures appealing to locals and tourists alike. Gone are the winter chills, giving way to a pleasant average of 10°C alongside some warmer days, peaking at 26°C. However, this month also brings occasional showers, evidenced by seven days of precipitation that contribute to the overall humidity level of 85%. Compared to the colder months, April offers a refreshing burst of life, making it an ideal time to explore the city's blossoming parks and vibrant streets. For a deeper understanding of typical weather patterns throughout the year, visit City of London Climate.