Lake Arrowhead Weather in July

What's the weather like in Lake Arrowhead (California) in July 2025?

The climate in Lake Arrowhead during July can be summarized as hot and very dry.

July is in the summer in Lake Arrowhead and is typically the warmest month of the year. Daytime maximum temperatures average around 34°C (92°F), whilst at night 16°C (60°F) is normal.

Lake Arrowhead weather averages (imperial / metric)
Daytime temperature 33.6°C 92.4°F
Nightly temperature 15.7°C 60.2°F
Average temperature 24.6°C 76.3°F
Daily sunshine 12.3 hrs
Avg rainfall 8 mm 0.3 ins
Rainy days 1 days
Sea temperature 18.9°C 66°F
Humidity 55%
Windspeed 14.8kph 9 mph

On average July is the 2nd driest month of the year in Lake Arrowhead with around 8mm 0.3 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 12.3 hours of sunshine per day.

July temperatures in Lake Arrowhead

Lake Arrowhead average temperature in July

July rainfall

Lake Arrowhead average rain in July

July hourly sunshine

Lake Arrowhead average rain in July

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lake Arrowhead in July 2025.