Orkney Islands weather

Our guide to the weather in the Orkney Islands during September

13

Average high

3

UV Index

120mm

Monthly rainfall

83%

Humidity

We've looked at the most up-to-date weather data for the Orkney Islands, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about the Orkney Islands weather in September.

What's the temperature like in the Orkney Islands during September?

The temperature is extremely stable in September with average highs of 13℃ and lows just 1℃ lower at 12℃. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in the Orkney Islands during September?

On average, there will be 7 rainy days during the month, amounting to 120.0mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in the Orkney Islands during September?

Expect moderate breeze becoming stronger at times during September, with occasional gusts up to 27mph. With moderate air temperatures, any breeze will feel cool.

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Weather in the Orkney Islands

Our month-by-month guide to the weather and climate in the Orkney Islands

7.3

Orkney Islands weather in

January
6.9

Orkney Islands weather in

February
7.3

Orkney Islands weather in

March
8.0

Orkney Islands weather in

April
9.6

Orkney Islands weather in

May
11.7

Orkney Islands weather in

June
13.5

Orkney Islands weather in

July
14.0

Orkney Islands weather in

August
13.1

Orkney Islands weather in

September
11.5

Orkney Islands weather in

October
9.7

Orkney Islands weather in

November
8.2

Orkney Islands weather in

December