Hermiston
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Hermiston Weather in May

Hermiston in May sees high daytime temperatures of 23°C (73°F) and nighttime lows of 8°C (46°F). Low rainfall is typical, with around 25 mm (1 in) for the month.

Rainfall in Hermiston in May

Based on our climate data of the past 30 years, about 8 days of rain are anticipated, with 25 mm (1 in) on average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Hermiston in May

If you're visiting Hermiston in May, expect excellent temperatures with highs of 23°C (73°F) and overnight lows of 8°C (46°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

If your ideal day consists of dry skies and pleasant temperatures, April, May, June, September and October typically offer the best circumstances for Hermiston.

Hermiston Temperature in May

Min Temperature
8°C (46°F)
Max Temperature
23°C (73°F)
Chance of Rain
27%
Precipitation
25 mm (1 in)
Rainy days
8 days

Hermiston Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Hermiston - 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 Hermiston in May

Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers.

What To Do in Hermiston in May

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

  • Cycling
    10/10
  • Walking
    10/10
  • Camping
    5/10
  • Outdoor sports
    10/10

Hermiston 3-Day Forecast

More climate data for Hermiston

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.