Best time to visit Diablo Lake

Find the best time to visit Diablo Lake and plan your perfect trip in 2024/2025. Get holiday inspiration, weather guides, travel advice and find great deals.

Diablo Lake by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Washington State

Marriott discount code: up to 20% off long hotel stays

  • Save up to 20% when you book long stays with Marriott
  • 20% off - 4-6 nights, 15% off 3 nights
  • Book participating hotels in Europe, the Middle East & Africa
Show discount codeShow discount code ******UK8
Redeem Marriott discount code >>

View all Marriott offers

When is the best time to visit Diablo Lake?

The best time to visit Diablo Lake is July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]

Change the criteria to reflect your weather preferences.

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Change criteria

Max Day Temperature (°C)

  • -1°C maximum daytime temperature in January in Diablo Lake-1
    Jan
  • 2°C maximum daytime temperature in February in Diablo Lake2
    Feb
  • 5°C maximum daytime temperature in March in Diablo Lake5
    Mar
  • 9°C maximum daytime temperature in April in Diablo Lake9
    Apr
  • 13°C maximum daytime temperature in May in Diablo Lake13
    May
  • 17°C maximum daytime temperature in June in Diablo Lake17
    Jun
  • 21°C maximum daytime temperature in July in Diablo Lake21
    Jul
  • 21°C maximum daytime temperature in August in Diablo Lake21
    Aug
  • 16°C maximum daytime temperature in September in Diablo Lake16
    Sep
  • 11°C maximum daytime temperature in October in Diablo Lake11
    Oct
  • 2°C maximum daytime temperature in November in Diablo Lake2
    Nov
  • -1°C maximum daytime temperature in December in Diablo Lake-1
    Dec

Which is the hottest month in Diablo Lake?

The hottest time of year in Diablo Lake is normally July. Expect maximum daytime temperatures to reach 21°C.

Which month has the most rain in Diablo Lake?

In terms of rainfall, December is usually the wettest month in Diablo Lake with 199mm on average. There are normally 18 days in December with some rain.

When is it sunniest in Diablo Lake?

The sunniest time of year in Diablo Lake is normally July with bright sunshine on average for 59% of daylight hours; that's 9 hours of sunshine per day.

Best time to visit

The weather guide for Washington State (Diablo Lake) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Washington State travel features

Do you want to learn more about Washington State? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Washington State.

Back to top

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Back to Holiday Weather Top ^