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April Weather in Old Harlow, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in Old Harlow, United Kingdom hovers around 9°C (49°F), offering a mild climate. Temperatures can dip as low as -1°C (30°F) or rise to a pleasant 25°C (78°F). Expect some moisture, with 30 mm (1.2 in) of precipitation over 7 days, and a noticeable average humidity of 85%.

April Temperature in Old Harlow

In April in Old Harlow, the average temperature is 9°C (49°F). Maximums can reach 25°C (78°F) and minimums can be as low as -1°C (30°F). Be sure to pack layers to enjoy both the warmer days and the cooler nights during your travels.

April Weather in Old Harlow: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Old Harlow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Old Harlow, April typically has an average temperature of 9°C (49°F), with highs reaching up to 25°C (78°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec414345495561656459534643
Data source: Temperature data for Old Harlow 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 Old Harlow

In Old Harlow in April, the total precipitation amount is 30 mm (1.2 in) over a span of 7 days.

April Precipitation Trends in Old Harlow

The chart displays monthly precipitation patterns in Old Harlow, 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. In Old Harlow, April typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec525054306572657349824683
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Old Harlow

In Old Harlow in April humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.

April Average Humidity in Old Harlow

This chart illustrates the average monthly humidity levels in Old Harlow, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Old Harlow is approximately 85%, offering insight into how humid the weather typically is during this month.
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 Old Harlow

In Old Harlow in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Old Harlow.

Maximum UV Index Levels in Old Harlow for April

The chart shows the monthly maximum UV Index (UVI) for Old Harlow 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. In April, the maximum UV index in Old Harlow typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Old Harlow 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.

How April Weather in Old Harlow Compares to Other Months

Weather in Old Harlow varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Old Harlow, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Old Harlow, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)52 mm (2.0 inches)91%low
February Weather6°C (43°F)50 mm (2.0 inches)89%low
March Weather7°C (46°F)54 mm (2.1 inches)86%moderate
April Weather9°C (49°F)30 mm (1.2 inches)85%moderate
May Weather13°C (55°F)65 mm (2.6 inches)82%high
June Weather16°C (62°F)72 mm (2.9 inches)81%very high
July Weather18°C (65°F)65 mm (2.5 inches)76%very high
August Weather18°C (64°F)73 mm (2.9 inches)73%high
September Weather15°C (59°F)49 mm (1.9 inches)80%moderate
October Weather12°C (54°F)82 mm (3.2 inches)89%moderate
November Weather8°C (46°F)46 mm (1.8 inches)92%low
December Weather6°C (43°F)83 mm (3.3 inches)92%low

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