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Saint Helens Weather in March

With daytime temperatures of 13°C (55°F) and nighttime lows of 3°C (37°F), March in Saint Helens brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 135 mm (5.3 in) falls on average.

Rainfall in Saint Helens in March

Typically, you can expect about 22 days of rain this month, with 135 mm (5.3 in) on average. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Saint Helens in March

Saint Helens in March gets highs of 13°C (55°F) during the day and drops to 3°C (37°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Saint Helens in March

Expect sunny days throughout the month, with an estimated 191 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Saint Helens.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Saint Helens.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Saint Helens's climate page.

Saint Helens Temperature in March

Min TemperatureMin Temperature 3°C (37°F)  
Max TemperatureMax Temperature 13°C (55°F)  
Chance of RainChance of Rain 74%  
PrecipitationPrecipitation 135 mm (5.3 in)  
Rainy daysRainy days 22 days  
HumidityHumidity 75% *  
SunshineSunshine 191 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Portland, the United States of America (33 KM, 20 Miles).

Best Places in the United States of America in March

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 March →

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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 (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 March

The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Saint Helens in March

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

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
5/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Saint Helens's climate page.

More climate data for Saint Helens