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March Weather in Llanwern, United Kingdom

Last updated: August 27, 2025

In March, the average temperature in Llanwern, United Kingdom hovers around 7°C (46°F), with a minimum dipping to -5°C (23°F) and reaching a pleasant maximum of 20°C (67°F). Expect about 83 mm (3.3 in) of precipitation over 14 days, paired with an average humidity of 86%. Embrace the climate, but don't forget your umbrella!

March Temperature in Llanwern

In March in Llanwern, the average temperature is 7°C (46°F). Maximum temperatures can reach 20°C (67°F), while minimums can dip as low as -5°C (23°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly!

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

The chart illustrates March temperature patterns in Llanwern, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llanwern, March typically has an average temperature of 7°C (46°F), with highs reaching up to 20°C (67°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec424445495461646259544745
Data source: Temperature data for Llanwern 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 Llanwern

In Llanwern in March, the precipitation amount is 83 mm (3.3 in) spread over a period of 14 days.

March Precipitation Trends in Llanwern

The chart displays monthly precipitation patterns in Llanwern, 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 Llanwern, March typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec64798355727969856511580106
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Llanwern

In Llanwern in March humidity is 86%. With an average temperature of 7°C (46°F), this humidity feels like wrapping yourself in a damp blanket, making travel uncomfortable and heavy, as the cold air mixes with the muggy atmosphere, leaving you longing for a warm, dry refuge.

March Average Humidity in Llanwern

This chart illustrates the average monthly humidity levels in Llanwern, 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 Llanwern is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Llanwern

In Llanwern 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 Llanwern for better planning.

Maximum UV Index Levels in Llanwern for March

The chart shows the monthly maximum UV Index (UVI) for Llanwern 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 Llanwern typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Llanwern 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 Llanwern Compares to Other Months

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

This table compares monthly weather conditions in Llanwern, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)64 mm (2.5 inches)88%low
February Weather6°C (44°F)79 mm (3.1 inches)88%low
March Weather7°C (46°F)83 mm (3.3 inches)86%moderate
April Weather10°C (49°F)55 mm (2.2 inches)84%high
May Weather12°C (55°F)71 mm (2.8 inches)80%high
June Weather16°C (61°F)79 mm (3.1 inches)80%very high
July Weather18°C (64°F)69 mm (2.7 inches)70%very high
August Weather17°C (63°F)85 mm (3.3 inches)73%high
September Weather15°C (59°F)65 mm (2.5 inches)79%high
October Weather12°C (54°F)115 mm (4.5 inches)89%moderate
November Weather9°C (48°F)80 mm (3.1 inches)90%low
December Weather7°C (45°F)106 mm (4.2 inches)89%low

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