March Weather in Saint David, United States

Last updated: August 27, 2025

In Saint David, United States, the average temperature in March hovers around 6°C (42°F). Expect temperatures to range from a chilly -18°C (0°F) to a warm 25°C (77°F). During this month, you can anticipate around 121 mm (4.8 in) of precipitation spread over 11 days, while the average humidity sits at a comfortable 81%.

March Temperature in Saint David

In March in Saint David, the average temperature is 6°C (42°F). Maximums can reach 25°C (77°F), and minimums can be as low as -18°C (0°F). It's wise to pack layers and be prepared for both chilly and warm days while exploring the area.

March Weather in Saint David: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Saint David, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint David, March typically has an average temperature of 6°C (42°F), with highs reaching up to 25°C (77°F) and lows dropping to around -18°C (0°F).

Data source: Temperature data for Saint David generated using information from the Copernicus Climate Change Service.

March Precipitation in Saint David

In Saint David in March, the total precipitation amount is 121 mm (4.8 in), which occurs over the course of 11 days.

March Precipitation Trends in Saint David

The chart displays monthly precipitation patterns in Saint David, 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 Saint David, March typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

March Humidity in Saint David

In Saint David in March humidity is 81%. With an average temperature of 6°C (42°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and somewhat drizzling, leaving travelers yearning for warmer, dryer conditions.

March Average Humidity in Saint David

This chart illustrates the average monthly humidity levels in Saint David, 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 Saint David is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Saint David

In Saint David 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 Saint David.

Maximum UV Index Levels in Saint David for March

The chart shows the monthly maximum UV Index (UVI) for Saint David 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 Saint David typically reaches 7, which falls under the high exposure category.

Data source: Saint David 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 Saint David Compares to Other Months

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

This table compares monthly weather conditions in Saint David, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	62 mm (2.4 inches)	81%	moderate
February Weather	-1°C (30°F)	68 mm (2.7 inches)	81%	moderate
March Weather	6°C (42°F)	121 mm (4.8 inches)	81%	high
April Weather	11°C (52°F)	113 mm (4.4 inches)	82%	very high
May Weather	18°C (65°F)	168 mm (6.6 inches)	78%	very high
June Weather	24°C (75°F)	152 mm (6.0 inches)	81%	extreme
July Weather	25°C (78°F)	106 mm (4.2 inches)	79%	very high
August Weather	24°C (75°F)	87 mm (3.4 inches)	77%	very high
September Weather	21°C (70°F)	72 mm (2.8 inches)	78%	very high
October Weather	13°C (56°F)	121 mm (4.8 inches)	78%	high
November Weather	5°C (41°F)	59 mm (2.3 inches)	87%	moderate
December Weather	1°C (35°F)	53 mm (2.1 inches)	84%	low