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Shetland Islands in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Shetland Islands in August will be like? Take a look at our weather guide for Shetland Islands, based on historical data.
Check flight prices to Shetland Islands on Avionero:
August

Weather in Shetland Islands in August 2025

OK Weather
Mild
🌧️
Rainy
If you plan to visit Shetland Islands in August, the weather is typically alright, with an average high temperature of +14°C during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 19 rainy days in the month and around 68 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • August is usually the hottest month of the year in Shetland Islands;
  • August is usually the wettest month of the year in Shetland Islands;

Average weather

☀️
+14°C
Avg. max. temperature
+2°C
Min.
+24°C
Max.
68 mm
Total precipitation
86%
Avg. humidity
5 m/s
Avg. wind
1 ☀️
Sunny Days
11 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Shetland Islands has OK weather in August.

Average temperature in Shetland Islands in August

Here are the expected maximum, average and minimum temperatures in Shetland Islands for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +15°C during the day to a minimum of +11°C during the night, the temperature in August averages around +13°C.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +13°C to +13°C.

Is Shetland Islands warm or cold in August?

Shetland Islands is typically mild in August.

Maximum temperatures go up compared to the previous month from +14°C to +14°C. The minimum temperature also goes up from +11°C to +11°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

August is the hottest month in Shetland Islands, here is the comparison with other months:

Climate in Shetland Islands in August

Shetland Islands weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+14°C+14°C+13°C
Min. temperature
+4°C+2°C+2°C
Max. temperature
+24°C+24°C+21°C
Rainfall
54 mm68 mm89 mm
Wind
5 m/s5 m/s7 m/s
Humidity
86%86%84%
Air pressure
1011 HPa1010 HPa1009 HPa
Sunny days
111
Cloudy days
13118
Rainy days
171921
Snowy days
000

August weather is still as ok as in July. The temperature levels stay the same in the area of +14°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 54 mm to 68 mm. Humidity levels don’t change as the month goes on, averaging around 86%. The average wind speed doesn’t change much during August, staying around 5 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

September brings much the same weather, it remains ok.

Wind

Wind speed in Shetland Islands in August based on historical data.
Last Year
Historical Data

The average wind speed is 5 m/s getting up to 14 m/s which is quite strong. The wind will cause branches to move and ground debris to fly around.

The average wind speed in Shetland Islands is gradually increasing during August, going from 4 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Shetland Islands based on historical data.
Last Year
Historical Data
Typically, there is a 29% chance of rain on an average day in August, with total rainfall of approximately 34 mm. The maximum amount of rainfall per day is around 6 mm, which is considered light rain. On average, there are about 9 rainy days during August, so prepare to bring an umbrella.
Here’s how August is compared with other months in the amount of precipitation, total mm:
Shetland Islands wettest month is November, where a typical day has a 80% chance of precipitation and 121 mm of rainfall per day. May, on the other hand, is the driest month with a mere 52% chance of precipitation and 44 mm of rainfall per day.

How was the weather last August in Shetland Islands?

This is the weather in Shetland Islands in August 2023:
1 August
☁️
+13°C
2 August
☁️
+13°C
3 August
☁️
+13°C
4 August
☁️
+12°C
5 August
☁️
+12°C
6 August
☁️
+12°C
7 August
☀️
+12°C
8 August
☁️
+12°C
9 August
☁️
+12°C
10 August
☁️
+13°C
11 August
☁️
+14°C
12 August
☁️
+14°C
13 August
☁️
+13°C
14 August
☁️
+13°C
15 August
☁️
+13°C
16 August
☁️
+13°C
17 August
☁️
+13°C
18 August
☁️
+14°C
19 August
☁️
+15°C
20 August
☁️
+14°C
21 August
☁️
+14°C
22 August
🌧️
+14°C
23 August
☁️
+14°C
24 August
🌧️
+14°C
25 August
☁️
+14°C
26 August
☁️
+14°C
27 August
☁️
+13°C
28 August
☁️
+13°C
29 August
☁️
+13°C
30 August
☁️
+13°C
31 August
☁️
+13°C
In August 2023 Shetland Islands had 1 sunny days, 28 cloudy days, and 2 rainy days. The average maximum temperature was +13°C, with an absolute maximum of +15°C and a minimum of +12°C. The average humidity was 89%, with a maximum of 100% and a minimum of 74%. The average wind speed was 5 m/s, with a maximum of 16 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change over Years

This is how Shetland Islands climate have been changing during last 43 years period.

The climate in Shetland Islands in August has not changed much over the last 43 years.

The average temperature was the lowest in 1979 (+8°C) and the highest in 2006 (+11°C). The driest year was 1996 with only 776 mm of rainfall, and the wettest year was 2015 with 1280 mm.

FAQ

Frequently asked questions about the weather in Shetland Islands in August:

Is August a good time to visit Shetland Islands?

It’s always a good time to visit Shetland Islands, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Shetland Islands in August?

August has mild temperatures in Shetland Islands. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Shetland Islands rainy in August?

Shetland Islands is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Shetland Islands in August?

Usually, it’s not very sunny in Shetland Islands in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in United Kingdom

Check out the weather for other cities in United Kingdom.

Monthly weather in Shetland Islands

Source of the data

For this page, we’ve looked at the typical weather in Shetland Islands, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.