Stornoway Weather in July

The climate in Stornoway during July can be summarized as mild and a little damp.

July is in the summer in Stornoway and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 10°C (49°F) is normal.

On average July is the 4th driest month of the year in Stornoway with around 86mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.6 hours of sunshine per day.

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 Stornoway in July 2025.