April Weather in Astoria, United States

Last updated: June 24, 2025

In Astoria, United States, the average temperature in April hovers around 11°C (52°F), with extremes ranging from a chilly -8°C (18°F) to a warm 29°C (85°F). Expect 110 mm (4.3 in) of precipitation spread over 11 days, contributing to a high average humidity of 82%. Whether you're bracing for a cold snap or enjoying a sunny day, be prepared for a variety of weather conditions!

April Temperature in Astoria

In April in Astoria, the average temperature is 11°C (52°F), with maximums reaching 29°C (85°F) and minimums dipping as low as -8°C (18°F). This range of temperatures makes Astoria a destination where travelers should be prepared for both warm days and chilly nights.

April Weather in Astoria: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Astoria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Astoria, April typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (85°F) and lows dropping to around -8°C (18°F).

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

April Precipitation in Astoria

In Astoria in April, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

April Precipitation Trends in Astoria

The chart displays monthly precipitation patterns in Astoria, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Astoria, April typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Astoria

In Astoria in April, humidity is 82%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers and stay prepared for the moisture-laden air as you explore your surroundings.

April Average Humidity in Astoria

This chart illustrates the average monthly humidity levels in Astoria, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Astoria is approximately 82%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Astoria

In Astoria in April, 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 Astoria.

Maximum UV Index Levels in Astoria for April

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

Data source: Astoria April 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 April Weather in Astoria Compares to Other Months

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

This table compares monthly weather conditions in Astoria, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	62 mm (2.4 inches)	81%	moderate
February Weather	-1°C (31°F)	66 mm (2.6 inches)	81%	moderate
March Weather	6°C (43°F)	127 mm (5.0 inches)	81%	high
April Weather	11°C (52°F)	110 mm (4.3 inches)	82%	very high
May Weather	18°C (65°F)	164 mm (6.5 inches)	78%	very high
June Weather	24°C (75°F)	135 mm (5.3 inches)	81%	extreme
July Weather	25°C (78°F)	103 mm (4.0 inches)	79%	very high
August Weather	24°C (75°F)	89 mm (3.5 inches)	77%	very high
September Weather	21°C (71°F)	71 mm (2.8 inches)	78%	very high
October Weather	14°C (57°F)	108 mm (4.3 inches)	78%	high
November Weather	5°C (41°F)	59 mm (2.3 inches)	87%	moderate
December Weather	2°C (35°F)	51 mm (2.0 inches)	84%	low