March Weather in Myrtle, United States

Last updated: June 24, 2025

In Myrtle, United States, the average temperature in March hovers around 14°C (57°F), offering a pleasant climate for outdoor activities. However, be prepared for a wide temperature range, with minimums plummeting to -4°C (25°F) and maximums soaring up to 30°C (86°F). Expect about 157 mm (6.2 in) of precipitation over 13 days, contributing to an average humidity of 84%.

March Temperature in Myrtle

In March in Myrtle, the average temperature is 14°C (57°F), with maximums that can reach 30°C (86°F) and minimums that can drop as low as -4°C (25°F). This varied climate makes it essential for travelers to pack both light and warm clothing to ensure comfort during their stay.

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

The chart illustrates March temperature patterns in Myrtle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Myrtle, March typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (25°F).

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

March Precipitation in Myrtle

In Myrtle in March, the total precipitation amount is 157 mm (6.2 in) spread over 13 days.

March Precipitation Trends in Myrtle

The chart displays monthly precipitation patterns in Myrtle, 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 Myrtle, March typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 13 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 Myrtle

In Myrtle in March, humidity is 84%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket wrapping around you, making outdoor activities feel stifling and requiring frequent breaks to cool off.

March Average Humidity in Myrtle

This chart illustrates the average monthly humidity levels in Myrtle, 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 Myrtle is approximately 84%, 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 Myrtle

In Myrtle in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Myrtle.

Maximum UV Index Levels in Myrtle for March

The chart shows the monthly maximum UV Index (UVI) for Myrtle 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 Myrtle typically reaches 8, which falls under the very high exposure category.

Data source: Myrtle 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 Myrtle Compares to Other Months

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

This table compares monthly weather conditions in Myrtle, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	120 mm (4.7 inches)	86%	moderate
February Weather	9°C (48°F)	188 mm (7.4 inches)	85%	high
March Weather	14°C (57°F)	157 mm (6.2 inches)	84%	very high
April Weather	16°C (62°F)	146 mm (5.8 inches)	81%	very high
May Weather	22°C (72°F)	110 mm (4.3 inches)	83%	extreme
June Weather	26°C (78°F)	133 mm (5.2 inches)	83%	extreme
July Weather	27°C (81°F)	118 mm (4.6 inches)	80%	extreme
August Weather	26°C (80°F)	113 mm (4.4 inches)	73%	very high
September Weather	24°C (76°F)	116 mm (4.6 inches)	70%	very high
October Weather	18°C (65°F)	106 mm (4.2 inches)	73%	high
November Weather	11°C (51°F)	79 mm (3.1 inches)	85%	high
December Weather	9°C (48°F)	150 mm (5.9 inches)	88%	moderate