April Weather in Horsham, United Kingdom

Last updated: March 17, 2025

April in Horsham, United Kingdom, presents a delightful transition into spring, with temperatures reaching a maximum of 23°C (73°F) during sunlit days, while averaging around 10°C (49°F). The nights can be brisk, dipping to a minimum of -2°C (29°F). This month experiences 34 mm (1.3 in) of precipitation across 8 days, contributing to a humidity level of 85%, which leaves the air feeling refreshingly crisp. Whether basking in the mild sunshine or enjoying the rejuvenating rain, April offers a vibrant tapestry of weather for residents and visitors alike.

April Temperature in Horsham

In April, Horsham experiences a delightful shift in temperatures as spring begins to take hold. With minimums hovering around -2°C (29°F) and average temperatures rising to 10°C (49°F), the chill of winter slowly gives way to milder days. The real transformation is evident in the maximum temperature, soaring to a pleasant 23°C (73°F), inviting residents and visitors alike to enjoy the blossoming landscapes. This month marks a notable increase from the preceding March, where temperatures peaked at 19°C (67°F), setting a clear trend toward warmth and longer, sunnier days. It's a time when the region buzzes with life, offering an ideal backdrop for outdoor activities and exploration.

April Weather in Horsham: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Horsham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414346495561646359544744
Data source: Temperature data for Horsham generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Horsham

April in Horsham, United Kingdom, typically brings a breath of fresh air as it ushers in warmer days, marked by a notable decrease in precipitation, totaling only 34 mm (1.3 in) over approximately 8 rainy days. This dip contrasts with the wetter months that precede it, such as March, which recorded 57 mm (2.2 in) of rainfall across 13 days. While April's showers are less frequent, they still contribute to the region's lush spring landscape, preparing the ground for the rainfall increases seen in May and June. The trend showcases a gradual transition from the heavier, more persistent rains of winter, reminding residents that spring's arrival brings both respite and renewal.

April Precipitation Trends in Horsham

The chart displays monthly precipitation patterns in Horsham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec545757346271576750916597
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Horsham

In April, Horsham's humidity drops slightly to 85%, maintaining a trend of decreasing moisture that begins in early spring. Following the high levels of winter, which hover around 91% in January, a gradual decline is evident throughout the months, with March at 86%. This subtle reduction suggests a shift towards drier conditions as the region transitions into the warmer months. As May approaches, humidity continues to decline further to 79%, hinting at an imminent rise in temperatures and clearer skies, typical of late spring in the UK.

April Average Humidity in Horsham

This chart illustrates the average monthly humidity levels in Horsham, 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%79%81%71%76%82%91%92%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Horsham

As spring unfolds in Horsham, the UV Index climbs significantly in April, reaching a level of 6, categorized as high. This marked increase from the moderate levels found in March reflects the sun’s stronger rays as longer days approach. With a burn time of just 25 minutes, it's essential for residents and visitors to protect their skin during outdoor activities. This trend of rising UV levels continues into May, emphasizing the need for sun safety as summer nears. To learn more about how UV levels change throughout the year, visit Horsham UV Index.

Maximum UV Index Levels in Horsham for April

The chart shows the monthly maximum UV Index (UVI) for Horsham 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.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Horsham 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 Horsham

As April rolls in, Horsham basks in an impressive 326 hours of sunshine, a significant leap from the 209 hours experienced in March. This month marks a delightful transition as daylight spreads its warm embrace, dancing well above the winter months that saw only 99 and 148 hours of sun in January and February, respectively. April's radiant skies set the stage for the forthcoming months, hinting at an upward trend that continues through May and July, where sunshine climbs to 405 and 408 hours. With this vibrant boost, Horsham's blossoming landscapes invite residents and visitors alike to relish the joys of spring.

Monthly Sunshine Duration in Horsham: April Highlighted

The April sunshine duration represents the total number of hours Horsham 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.
JanFebMarAprMayJunJulAugSepOctNovDec99h148h209h326h405h396h408h375h309h244h149h112h
Data source: Horsham April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Horsham During April

April marks a significant turning point in Horsham's weather, boasting a 55% chance of sunny days, making it the sunniest month at this time of year. This increase in sunshine follows the steady rise in sunlight from the winter months, with January starting at a mere 22% and gradually climbing as spring approaches. By April, the promise of warmer days is palpable, reflecting a considerable jump from March's 37% chance, highlighting the shift towards more favorable weather. As May approaches, however, the likelihood of sunny weather dips to 38%, suggesting that while April offers a welcomed reprieve from dreary skies, the sun's presence may become more elusive as the season progresses.

Percentage of Sunny Days in April in Horsham

The chart illustrates the percentage of sunny days in Horsham 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 Horsham experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%26%37%55%38%30%40%32%34%28%35%20%
Data source: Horsham April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Horsham in April

In April, the days in Horsham, United Kingdom begin to noticeably lengthen, offering an invigorating 13 hours of daylight. This marks a significant increase from the 11 hours seen in March, signaling the transition from the gray winter months into the vibrant energy of spring. As daylight gradually extends, residents can indulge in more outdoor activities and take advantage of longer evenings. Following April, May continues this upward trend with 15 hours of light, setting the stage for the bright, sun-soaked days of summer. The progression from the shorter daylight hours of winter to the blooming abundance of spring epitomizes the changing seasons, inviting the community to embrace the uplifting and revitalizing power of natural light.

Average Daylight Hours in Horsham for April

The chart illustrates the variation in daylight duration in Horsham throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 28m10h11h 55m13h 52m15h 34m16h 27m15h 59m14h 27m12h 34m10h 38m8h 53m7h 58m
Data source: Horsham daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Horsham

In April, Horsham experiences a gentle breeze with an average wind speed of 3.8 m/s (9 mph), marking a notable dip from the earlier months. This transition ushers in a feeling of calm after March's windiness at the same speed as January. Interestingly, the trend shows that as spring unfolds, winds generally tend to soften, exemplified by April's breezy but mild conditions. Following this gentle month, the winds once again pick up in May, returning to an average speed of 4.8 m/s (11 mph), suggesting that while April provides a brief respite, the spring winds are just gearing up for a more dynamic performance as summer approaches.

Average April Wind Speed in Horsham

The chart displays monthly wind speed patterns in Horsham, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.85.34.83.8 m/s4.83.23.74.23.64.94.04.9
Data source: Horsham April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Horsham Compares to Other Months

The weather in Horsham 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 Horsham and find detailed weather information for every month.

April generally offers a milder and more pleasant climate compared to January. While January features colder temperatures with a minimum of -4°C (24°F) and an average of 5°C (42°F), April warms up with a minimum of -2°C (29°F) and an average of 10°C (49°F). Additionally, April experiences less precipitation at 34 mm (1.3 in) over 8 days, compared to January's 54 mm (2.1 in) over 10 days. The humidity is also slightly lower in April at 85%, compared to January's 91%. For more detailed weather information about January, you can check out Horsham weather in January.

April tends to be milder compared to February, with average temperatures rising from February's 6°C (44°F) to a more pleasant 10°C (49°F). While both months experience cold nights, April showcases a higher maximum temperature of 23°C (73°F), significantly warmer than February's maximum of 16°C (62°F). February, however, sees slightly higher precipitation levels at 57 mm (2.2 in) over 11 days, compared to April's 34 mm (1.3 in) over 8 days. Humidity remains relatively high in both months, with February at 89% and April at 85%. For more detailed weather information for February, you can visit Horsham weather in February.

In comparing the weather of April and March, April tends to be milder with a minimum temperature of -2°C (29°F) and an average temperature of 10°C (49°F), compared to March's lower minimum of -6°C (22°F) and average of 8°C (46°F). The maximum temperatures in April can reach 23°C (73°F), while in March, the maximum is 19°C (67°F). However, March experiences more precipitation, with 57 mm (2.2 in) over 13 days, compared to April's 34 mm (1.3 in) over 8 days. Humidity levels are quite similar, at 86% in March and 85% in April. For more detailed insights on the weather trends in March, you can check Horsham weather in March.

April and May showcase a gradual transition in weather, with May generally warmer and wetter than April. In April, temperatures range from a chilly -2°C (29°F) to a pleasant 23°C (73°F), averaging around 10°C (49°F), alongside 34 mm (1.3 in) of precipitation over 8 days and a high humidity of 85%. Conversely, May sees a slight increase in temperatures, with a range between 1°C (34°F) and 25°C (77°F), yielding an average of 13°C (55°F). However, May also brings more rain, totaling 62 mm (2.4 in) across 11 rainy days, while humidity decreases slightly to 79%. For more detailed insights, check out Horsham weather in May.

April weather is marked by cooler temperatures, with a minimum of -2°C (29°F) and an average of 10°C (49°F), peaking at 23°C (73°F). The month also experiences moderate rainfall, totaling 34 mm (1.3 in) over about 8 days, alongside relatively high humidity levels at 85%. In contrast, June brings milder and warmer conditions, with temperatures ranging from a minimum of 7°C (45°F) to an average of 16°C (61°F) and reaching up to 30°C (86°F). Rainfall in June is higher, amounting to 71 mm (2.8 in), but it still sees precipitation on approximately 8 days, along with slightly lower humidity at 80%. For a detailed look at the weather specifics for June, check out Horsham weather in June.

April and July present stark contrasts in weather conditions. In April, temperatures can dip as low as -2°C (29°F) at night, with an average of 10°C (49°F) and daily highs reaching up to 23°C (73°F). This month also experiences considerable humidity at 85% and sees about 34 mm (1.3 in) of rainfall over approximately 8 days. In contrast, July brings much warmer temperatures, with minimums of 9°C (48°F), an average of 18°C (65°F), and peaks soaring to 33°C (92°F). Although July has slightly higher precipitation at 57 mm (2.2 in) over 11 days, the humidity drops to a more comfortable 71%. For more detailed information, check out Horsham weather in July.

April weather in Horsham presents a transitional phase as temperatures range from a chilly minimum of -2°C (29°F) to a pleasant max of 23°C (73°F), with an average of 10°C (49°F). The month experiences around 34 mm (1.3 in) of precipitation over 8 days and a high humidity level of 85%. In contrast, August enjoys warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 32°C (89°F), averaging 17°C (64°F). However, it brings more rainfall, accumulating 67 mm (2.6 in) across 11 days, and a slightly lower humidity of 76%. For a deeper look into the weather specifics, check out Horsham weather in August.

When comparing the weather in April and September, several key differences emerge. April tends to be cooler, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 23°C (73°F), while September enjoys milder temperatures, with a minimum of 3°C (37°F) and a maximum of 27°C (81°F). The average temperature in April is approximately 10°C (49°F), whereas September sees a more comfortable average of 15°C (60°F). Precipitation is also a factor; April receives about 34 mm (1.3 in) over approximately 8 days, while September experiences slightly more rain, totaling around 50 mm (2.0 in) over 9 days. Despite the increased rainfall in September, humidity levels remain similar, at 85% in April and 82% in September. For a detailed look at September's conditions, you can refer to Horsham weather in September.

April and October showcase a transition in weather patterns, each with their unique characteristics. In April, temperatures generally range from a chilly minimum of -2°C (29°F) to a comfortable average of 10°C (49°F), peaking at a maximum of 23°C (73°F). The month experiences moderate precipitation, with about 34 mm (1.3 in) over 8 days and humidity levels around 85%. In contrast, October brings slightly warmer temperatures, with a minimum of 2°C (36°F) and an average of 12°C (54°F), while the maximum reaches 21°C (70°F). However, it is also wetter, recording 91 mm (3.6 in) of precipitation over 14 days, and a slight increase in humidity to 90%. For a detailed look at October's weather, you can check Horsham weather in October.

April and November exhibit distinct weather characteristics, reflecting the transition between spring and autumn. In April, temperatures range from a chilly -2°C (29°F) to a pleasant 23°C (73°F) with an average of 10°C (49°F). The month sees about 34 mm (1.3 in) of precipitation over around 8 days, and humidity hovers at 85%. In contrast, November experiences cooler temperatures, with a minimum of -2°C (29°F), an average of 8°C (47°F), and a maximum of 16°C (62°F). This month is wetter, receiving 65 mm (2.6 in) of rain over about 12 days and exhibiting a higher humidity level of 92%. For more specific details about November weather, you can refer to Horsham weather in November.

In April, temperatures range from a minimum of -2°C (29°F) to a maximum of 23°C (73°F), with an average of 10°C (49°F). The month receives about 34 mm (1.3 in) of precipitation over approximately 8 days, while humidity levels stand at 85%. In contrast, December experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 14°C (58°F), averaging around 7°C (45°F). The month sees significantly higher precipitation, totaling 97 mm (3.8 in) across 15 days, and elevated humidity levels at 92%. For more details on the December climate, visit Horsham weather in December.

Compare Horsham's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Horsham

In April, Horsham experiences a refreshing transition from the lingering chill of winter to the gentle warmth of spring. With maximum temperatures reaching a pleasant 23°C, the month showcases a notable rise in warmth compared to the cooler months before it. The average temperature of 10°C indicates a significant shift towards more comfortable weather, while the minimum dips to just below freezing remind us that spring can still bring surprises. While April sees a moderate amount of rainfall spread over eight days, the humidity at 85% gives a fresh and invigorating feel to the air. This evolving climate in April sets the stage for brighter and sunnier days ahead, making it an enchanting time to explore Horsham's natural beauty. For further insights into seasonal changes, visit Horsham Climate.