Lerwick Weather in August

The climate in Lerwick during August can be summarized as mild and reasonably dry.

August is in the summer in Lerwick and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 10°C (49°F) is normal.

On average August is the 5th driest month of the year in Lerwick with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 18 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 Lerwick in August 2025.