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March Weather in Harlow, United Kingdom

Last updated: August 27, 2025

In March, the average temperature in Harlow, United Kingdom hovers around 7°C (45°F). Expect chilly nights, with minimum temperatures dipping to -6°C (22°F), while daytime highs can reach up to 22°C (72°F). Be prepared for some rain, as 54 mm (2.1 in) of precipitation is expected over 13 days, contributing to a notably high average humidity of 86%.

March Temperature in Harlow

In March in Harlow, the average temperature is 7°C (45°F). Maximum temperatures can reach 22°C (72°F), while minimums can dip as low as -6°C (22°F). This diverse range of temperatures makes it essential to pack accordingly for your travels.

March Weather in Harlow: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Harlow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harlow, March typically has an average temperature of 7°C (45°F), with highs reaching up to 22°C (72°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec404345495561656459534643
Data source: Temperature data for 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.

March Precipitation in Harlow

In Harlow in March, the precipitation amount is 54 mm (2.1 in), falling over the course of 13 days.

March Precipitation Trends in Harlow

The chart displays monthly precipitation patterns in Harlow, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Harlow, March typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec534954316474677447834783
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Harlow

In Harlow in March, humidity is 86%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and necessitating cozy layers to stay warm while navigating the moist air.

March Average Humidity in Harlow

This chart illustrates the average monthly humidity levels in Harlow, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Harlow is approximately 86%, 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 March generated using information from the Copernicus Climate Change Service.

March UV Index in Harlow

In Harlow in March, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Harlow for better planning.

Maximum UV Index Levels in Harlow for March

The chart shows the monthly maximum UV Index (UVI) for Harlow in March, 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 March, the maximum UV index in Harlow typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Harlow March 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 March Weather in Harlow Compares to Other Months

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

This table compares monthly weather conditions in Harlow, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)53 mm (2.1 inches)91%low
February Weather6°C (43°F)49 mm (1.9 inches)89%low
March Weather7°C (45°F)54 mm (2.1 inches)86%moderate
April Weather9°C (49°F)31 mm (1.2 inches)85%moderate
May Weather13°C (55°F)64 mm (2.5 inches)82%high
June Weather16°C (62°F)74 mm (2.9 inches)81%very high
July Weather18°C (65°F)67 mm (2.6 inches)76%very high
August Weather18°C (64°F)74 mm (2.9 inches)73%high
September Weather15°C (59°F)47 mm (1.9 inches)80%high
October Weather12°C (53°F)83 mm (3.3 inches)89%moderate
November Weather8°C (46°F)47 mm (1.8 inches)92%low
December Weather6°C (43°F)83 mm (3.3 inches)92%low

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