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March Weather in Williamsburg, United States

Last updated: June 24, 2025

In Williamsburg, United States, the average temperature in March hovers around 4°C (39°F). While you may experience brisk days with a minimum temperature dropping to -16°C (3°F), the mercury can reach a pleasant 21°C (71°F) at its peak. Prepare for 91 mm (3.6 in) of precipitation over 13 days, and keep in mind the average humidity is a cozy 89%.

March Temperature in Williamsburg

In March in Williamsburg, the average temperature is 4°C (39°F). Maximum temperatures can reach 21°C (71°F), while minimum temperatures can drop as low as -16°C (3°F). Be sure to pack layers to prepare for both chilly and mild weather during your travels.

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

The chart illustrates March temperature patterns in Williamsburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamsburg, March typically has an average temperature of 4°C (39°F), with highs reaching up to 21°C (71°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339496068747266554034
Data source: Temperature data for Williamsburg 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 Williamsburg

In Williamsburg in March, the precipitation amount is 91 mm (3.6 in) spread over 13 days.

March Precipitation Trends in Williamsburg

The chart displays monthly precipitation patterns in Williamsburg, 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 Williamsburg, March typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec67106911091291121171001301137893
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Williamsburg

In Williamsburg in March humidity is 89%. With an average temperature of 4°C (39°F), this humidity feels like an uninviting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers of clothing to fend off the dampness.

March Average Humidity in Williamsburg

This chart illustrates the average monthly humidity levels in Williamsburg, 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 Williamsburg is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Williamsburg

In Williamsburg in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Williamsburg.

Maximum UV Index Levels in Williamsburg for March

The chart shows the monthly maximum UV Index (UVI) for Williamsburg 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 Williamsburg typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: Williamsburg 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 Williamsburg Compares to Other Months

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

This table compares monthly weather conditions in Williamsburg, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)67 mm (2.6 inches)89%moderate
February Weather0°C (33°F)106 mm (4.2 inches)90%moderate
March Weather4°C (39°F)91 mm (3.6 inches)89%high
April Weather10°C (50°F)109 mm (4.3 inches)88%very high
May Weather16°C (60°F)129 mm (5.1 inches)80%very high
June Weather20°C (69°F)112 mm (4.4 inches)79%very high
July Weather23°C (74°F)117 mm (4.6 inches)74%very high
August Weather22°C (72°F)100 mm (3.9 inches)64%very high
September Weather19°C (66°F)130 mm (5.1 inches)67%very high
October Weather13°C (56°F)113 mm (4.4 inches)81%high
November Weather5°C (41°F)78 mm (3.1 inches)89%moderate
December Weather1°C (34°F)93 mm (3.7 inches)88%moderate

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