Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Saint Helens Weather in May
Thinking of visiting Saint Helens in May? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 7°C (45°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Saint Helens in May
Based on our climate data of the past 30 years, about 14 days of rain are anticipated, with 67 mm (2.6 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Saint Helens in May
Saint Helens in May has excellent weather. Days reach 20°C (68°F) and nights cool to 7°C (45°F). Conditions are often most pleasant around the middle of the day. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Saint Helens in May
Expect sunny days throughout the month, with an estimated 276 hours of sunshine. This makes it a pleasant time to visit Saint Helens.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
Saint Helens Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
20°C (68°F)
Chance of Rain
45%
Precipitation
67 mm (2.6 in)
Rainy days
14 days
Humidity
69% *
Sunshine
276 hours *
Percentage Sunshine
*
* Data from: Portland, the United States of America (33 KM, 20 Miles).
Saint Helens Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Helens - and find the best time to visit.
Best Places 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. See all of the United States of America in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Saint Helens in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Saint Helens in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling10/10 -
Walking10/10 -
Barbeque8/10 -
Camping4/10 -
Outdoor sports10/10
Saint Helens 3-Day Forecast
More climate data for Saint Helens
Temperature Rainfall Sunshine Humidity
See the full Saint Helens climate overview or explore weather in the United States of America.
Popular in May
Where to go in May - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.