Saint Helens weather in May (Oregon, United States of America)

Is May a good time to explore Saint Helens weather-wise? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

For May, the weather in Saint Helens is generally perfect, featuring pleasant temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 20°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate 7°C.

Precipitation

Saint Helens in May usually receives moderate rainfall, averaging around 67 mm for the month. According to historical climate patterns, there are usually around 14 days days of rain.

Average sunshine

Expect a lot of sunshine this month, with about 276 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.

If you're inclined towards comfortable temperatures and drier conditions, May is a prime time to visit Saint Helens. May, June, July, August and September typically offer the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Saint Helens climate page with graphs.

 

Saint Helens, monthly averages in May

Min Temperature 7°C  

Max Temperature 20°C  

Chance of Rain 45%  

Precipitation 67 mm  

Rainy days 14 days  

Humidity 69% *  

Sunshine 276 hours *  

Percentage Sunshine *  

Data from: Portland, the United States of America (33 KM, 20 Miles).

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Saint Helens, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

8/10

Camping

4/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Saint Helens.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.