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March Weather in Grantham, United Kingdom

Last updated: August 27, 2025

In Grantham, United Kingdom, the average temperature in March hovers around 7°C (45°F). During this time, temperatures can dip as low as -7°C (20°F) or rise up to a pleasant 21°C (70°F). Expect approximately 61 mm (2.4 in) of precipitation across 13 days, contributing to a high average humidity of 86%. Prepare for a wet and cool month in this charming destination!

March Temperature in Grantham

In March in Grantham, the average temperature is 7°C (45°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and chilly weather.

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

The chart illustrates March temperature patterns in Grantham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grantham, March typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245485460646358524642
Data source: Temperature data for Grantham 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 Grantham

In Grantham in March, the precipitation amount is 61 mm (2.4 in) occurring over the course of 13 days.

March Precipitation Trends in Grantham

The chart displays monthly precipitation patterns in Grantham, 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 Grantham, March typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec465761366478727557765874
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Grantham

In Grantham 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 Grantham

This chart illustrates the average monthly humidity levels in Grantham, 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 Grantham is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%80%81%76%77%85%90%92%90%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Grantham

In Grantham in March, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Grantham, you can check the information here.

Maximum UV Index Levels in Grantham for March

The chart shows the monthly maximum UV Index (UVI) for Grantham 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 Grantham typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578875421
Data source: Grantham 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 Grantham Compares to Other Months

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

This table compares monthly weather conditions in Grantham, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)46 mm (1.8 inches)90%low
February Weather6°C (43°F)57 mm (2.3 inches)88%low
March Weather7°C (45°F)61 mm (2.4 inches)86%moderate
April Weather9°C (48°F)35 mm (1.4 inches)84%moderate
May Weather12°C (54°F)64 mm (2.5 inches)80%high
June Weather16°C (60°F)78 mm (3.1 inches)81%very high
July Weather18°C (64°F)72 mm (2.8 inches)76%very high
August Weather17°C (63°F)75 mm (3.0 inches)77%high
September Weather15°C (59°F)57 mm (2.3 inches)85%moderate
October Weather11°C (53°F)76 mm (3.0 inches)90%moderate
November Weather8°C (46°F)58 mm (2.3 inches)92%low
December Weather6°C (42°F)74 mm (2.9 inches)90%low

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