ScotlandAverage weather for Orkney Islands in September
It's cool in September in Orkney Islands with an average temperature of 14°C. Temperatures this month range from a low of 12°C to a high of 16°C. At night, you can expect temperatures between 8°C and 12°C.
Start of September
The month of September starts in Orkney Islands with cool temps, averaging around 16°C during the day and nights around 11°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid September
By mid-September, daytime temps drop to around 15°C, with nights around 11°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Orkney Islands is around 14°C, while nighttime temps are about 10°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
In September, there is an average of 140 mm of precipitation, spread over 15 days. The wind speed is around 5 Bft, mostly coming from the Southwest.
Orkney Islands in September |
New York | ||
|---|---|---|---|
 Average temperature |
14°C | 27°C | |
 Max. temperature |
16°C | 31°C | |
| Min. temperature |
12°C | -5°C | |
 Total precipitation |
140 mm | 57 mm | |
| Rainy days |
15 days | 9 days | |
August
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Orkney Islands?
Looking for sun? September isn’t a good month to be in Orkney Islands. There’s too much chance of rain this month.
Temperature records
With 22°C in 2023, Orkney Islands reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 15°C.
Check out the climate of Orkney Islands for all months and discover the best travel time
Daily Temperature in September in Orkney Islands
This chart shows the average daily high and low temperatures in September for Orkney Islands, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Orkney Islands
The chart below shows the average daily precipitation in September for Orkney Islands, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 15 days of precipitation in Orkney Islands.
Daily UV index in September in Orkney Islands
This chart shows the average daily UV index in September in Orkney Islands, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Orkney Islands over the years
This chart shows the average temperature in September in Orkney Islands, measured in degrees Celsius, over the past few years.
Total precipitation in September in Orkney Islands over the years
This chart shows the average precipitation in September in Orkney Islands, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Orkney Islands
Click on any day in September to get detailed info about the usual weather on that day in Orkney Islands. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Orkney Islands
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Average weather in Orkney Islands by month
Click on a month below to see detailed weather info for Orkney Islands. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Orkney Islands for all months at once
