March Weather in Ilwaco, United States

Last updated: June 24, 2025

In March, the average temperature in Ilwaco, United States hovers around 8°C (47°F). Expect cooler days with minimums dropping to 2°C (35°F), while highs can reach a comfortable 17°C (64°F). Be prepared for some wet weather, as precipitation averages about 161 mm (6.3 in) over 17 days. With an average humidity of 85%, you'll definitely feel the moisture in the air!

March Temperature in Ilwaco

In March in Ilwaco, the average temperature is 8°C (47°F). Maximums can reach 17°C (64°F), and minimums can be as low as 2°C (35°F). This mild weather makes it a great time for outdoor activities and exploring local attractions.

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

The chart illustrates March temperature patterns in Ilwaco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilwaco, March typically has an average temperature of 8°C (47°F), with highs reaching up to 17°C (64°F) and lows dropping to around 2°C (35°F).

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

March Precipitation in Ilwaco

In Ilwaco in March, the total precipitation amount is 161 mm (6.3 in), recorded over a span of 17 days.

March Precipitation Trends in Ilwaco

The chart displays monthly precipitation patterns in Ilwaco, 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 Ilwaco, March typically receives around 161 mm (6.3 inches) of precipitation spread over approximately 17 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 Ilwaco

In Ilwaco in March humidity is 85%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities feel less refreshing and more uncomfortable for traveling.

March Average Humidity in Ilwaco

This chart illustrates the average monthly humidity levels in Ilwaco, 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 Ilwaco is approximately 85%, 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 Ilwaco

In Ilwaco in March, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Ilwaco.

Maximum UV Index Levels in Ilwaco for March

The chart shows the monthly maximum UV Index (UVI) for Ilwaco 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 Ilwaco typically reaches 5, which falls under the moderate exposure category.

Data source: Ilwaco 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 Ilwaco Compares to Other Months

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

This table compares monthly weather conditions in Ilwaco, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	242 mm (9.5 inches)	86%	low
February Weather	7°C (45°F)	193 mm (7.6 inches)	84%	moderate
March Weather	8°C (47°F)	161 mm (6.3 inches)	85%	moderate
April Weather	10°C (50°F)	132 mm (5.2 inches)	83%	high
May Weather	12°C (54°F)	66 mm (2.6 inches)	84%	very high
June Weather	14°C (58°F)	58 mm (2.3 inches)	84%	very high
July Weather	15°C (60°F)	19 mm (0.8 inches)	82%	very high
August Weather	16°C (61°F)	20 mm (0.8 inches)	73%	very high
September Weather	15°C (60°F)	84 mm (3.3 inches)	74%	high
October Weather	13°C (55°F)	156 mm (6.1 inches)	83%	moderate
November Weather	10°C (51°F)	249 mm (9.8 inches)	86%	moderate
December Weather	8°C (47°F)	248 mm (9.8 inches)	87%	low