May Weather in Ilwaco

Last updated: March 2, 2024

The weather in Ilwaco, United States, during May is characterized by an average temperature of 12°C (54°F). Highs can soar to 18°C (65°F), while lows may dip to 8°C (47°F). Typically, the humidity level in Ilwaco throughout May hovers around 84%.

8°C (47°F)

Minimum temperature

12°C (54°F)

Average temperature

18°C (65°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

In May, Ilwaco averages 66 mm (2.6 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 59 minutes of daylight, with the sun shining for approximately 9 hours 22 minutes each day. Additionally, there is a 26% probability of sunny days during this period.

66 mm (2.6 inches)

Precipitation

11 rainy days

Rainy days

9 hours 22 minutes

Sunshine hours

26%

Chance of sun

UV Index

In May, the UV Index in Ilwaco reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 3 5 7 8 9 9 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

Compare Ilwaco's Climate with Cities Worldwide