May Weather in Oregon

Last updated: March 2, 2024

The weather in Oregon, United States, during May is characterized by an average temperature of 15°C (60°F). Highs can soar to 31°C (87°F), while lows may dip to 2°C (35°F). Typically, the humidity level in Oregon throughout May hovers around 78%.

2°C (35°F)

Minimum temperature

15°C (60°F)

Average temperature

31°C (87°F)

Maximum temperature

78%

Humidity

Precipitation and Sunshine hours

In May, Oregon averages 133 mm (5.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 14 hours 40 minutes of daylight, with the sun shining for approximately 8 hours 30 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

133 mm (5.2 inches)

Precipitation

14 rainy days

Rainy days

8 hours 30 minutes

Sunshine hours

35%

Chance of sun

UV Index

In May, the UV Index in Oregon reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 7 9 9 8 7 5 3 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

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