The weather in May in Astoria

It's cool to moderate in May in Astoria with an average temperature of 17°C. Temperatures this month range from a low of 15°C to a high of 19°C. At night, you can expect temperatures between 7°C and 11°C.

Looking for sun and warm weather? May isn’t a good month to be in Astoria. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Astoria, Oregon. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2023, Astoria reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 10°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 15°C.

Rainfall amount

In May, there is an average of 73 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in May for Astoria

Click on any day in May to get detailed info about the usual weather on that day in Astoria. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  Astoria New York
Average temperature 17°C 22°C
Max. temperature 19°C 28°C
Min. temperature 7°C -5°C
Total precipitation 73 mm 105 mm
Rainy days 11 days 14 days

Start of May

The month of May starts in Astoria with cool temps, averaging around 17°C during the day and nights around 9°C.

Mid May

By mid-May, daytime temps stay steady at around 17°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of May

By the end of May, the average daytime temperature in Astoria is around 17°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Astoria for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in May in Astoria, Oregon. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in Astoria

Temperature in May in Astoria over the years

Precipitation charts

These charts show the average amount of precipitation in May in Astoria, Oregon. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in May in Astoria

Total precipitation in May in Astoria over the years

Daily UV index in May in Astoria

This chart shows the average daily UV index in May in Astoria, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in May in Astoria

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Average weather in Astoria by month

Click on a month below to see detailed weather info for Astoria. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.